diff --git a/01-intro-shell.html b/01-intro-shell.html
index f2ad1900..02356e0f 100644
--- a/01-intro-shell.html
+++ b/01-intro-shell.html
@@ -433,7 +433,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/01-intro-shell.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
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diff --git a/02-navigating-the-filesystem.html b/02-navigating-the-filesystem.html
index 8650329b..0f7d980a 100644
--- a/02-navigating-the-filesystem.html
+++ b/02-navigating-the-filesystem.html
@@ -680,7 +680,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/02-navigating-the-filesystem.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-02-23",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
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diff --git a/03-working-with-files-and-folders.html b/03-working-with-files-and-folders.html
index 328766be..0144f25c 100644
--- a/03-working-with-files-and-folders.html
+++ b/03-working-with-files-and-folders.html
@@ -875,7 +875,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/03-working-with-files-and-folders.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-02-23",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
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diff --git a/04-loops.html b/04-loops.html
index 80e7079e..882b4f2e 100644
--- a/04-loops.html
+++ b/04-loops.html
@@ -456,7 +456,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb6">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -587,7 +587,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/04-loops.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-02-23",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/05-counting-mining.html b/05-counting-mining.html
index 2188f351..5bfdf3b7 100644
--- a/05-counting-mining.html
+++ b/05-counting-mining.html
@@ -612,7 +612,7 @@ <h3 class="callout-title">Adding another pipe<a class="anchor" aria-label="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>cat</code> command just outputs whatever it gets as input,
 so you get exactly the same output from</p>
@@ -669,7 +669,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Here we use the <code>wc</code> command with the <code>-w</code>
 (word) flag on all <code>tsv</code> files, <code>sort</code> them and
@@ -704,7 +704,7 @@ <h3 class="callout-title">Counting number of files<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb29">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -734,7 +734,7 @@ <h3 class="callout-title">Writing to files<a class="anchor" aria-label="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -769,7 +769,7 @@ <h3 class="callout-title">Appending to a file<a class="anchor" aria-label="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
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 <div class="codewrapper sourceCode" id="cb31">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -802,7 +802,7 @@ <h3 class="callout-title">Counting the number of words<a class="anchor" aria-lab
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>From <code>man wc</code>, you will see that there is a
 <code>-w</code> flag to print the number of words:</p>
@@ -1020,7 +1020,7 @@ <h3 class="callout-title">Automatically adding a date prefix<a class="anchor" ar
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7">Show me the solution</h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Using <code>date --help</code> (on Git Bash for Windows or Linux) or
 <code>man date</code> (on macOS or Linux) will show you that the
@@ -1097,7 +1097,7 @@ <h3 class="callout-title">Case sensitive search<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8">Show me the solution</h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb52">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1127,7 +1127,7 @@ <h3 class="callout-title">Case sensitive search in select files<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9">Show me the solution</h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb53">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1157,7 +1157,7 @@ <h3 class="callout-title">Count words (case sensitive)<a class="anchor" aria-lab
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution10" aria-expanded="false" aria-controls="collapseSolution10">
   <h4 class="accordion-header" id="headingSolution10">Show me the solution</h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb54">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1187,7 +1187,7 @@ <h3 class="callout-title">Count words (case insensitive)<a class="anchor" aria-l
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution11" aria-expanded="false" aria-controls="collapseSolution11">
   <h4 class="accordion-header" id="headingSolution11">Show me the solution</h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb55">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1217,7 +1217,7 @@ <h3 class="callout-title">Case insensitive search in select files<a class="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
   <h4 class="accordion-header" id="headingSolution12">Show me the solution</h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb56">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1248,7 +1248,7 @@ <h3 class="callout-title">Case insensitive search in select files (whole
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
   <h4 class="accordion-header" id="headingSolution13">Show me the solution</h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb57">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1281,7 +1281,7 @@ <h3 class="callout-title">Searching with regular expressions<a class="anchor" ar
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution14" aria-expanded="false" aria-controls="collapseSolution14">
   <h4 class="accordion-header" id="headingSolution14">Show me the solution</h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb58">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1328,7 +1328,7 @@ <h3 class="callout-title">Finding unique values<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution15" aria-expanded="false" aria-controls="collapseSolution15">
   <h4 class="accordion-header" id="headingSolution15">Show me the solution</h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb60">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1423,7 +1423,7 @@ <h3 class="callout-title">Why are the variables double-quoted here?<a class="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution16" aria-expanded="false" aria-controls="collapseSolution16">
   <h4 class="accordion-header" id="headingSolution16">Solutions</h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <div class="accordion-body">
 <ol style="list-style-type: lower-alpha"><li><p>Because we are explicitly listing the names after
 <code>in</code>, and those contain no white-space. However, for
@@ -1504,7 +1504,7 @@ <h3 id="now-your-turn">Now your turn<a class="anchor" aria-label="anchor" href="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution17" aria-expanded="false" aria-controls="collapseSolution17">
   <h4 class="accordion-header" id="headingSolution17">Show me the solution</h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <p>First, let’s see where our desired columns are:</p>
 <div class="codewrapper sourceCode" id="cb68">
@@ -1612,7 +1612,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/05-counting-mining.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-02-23",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/06-free-text.html b/06-free-text.html
index 13fd1cc9..2b316132 100644
--- a/06-free-text.html
+++ b/06-free-text.html
@@ -866,7 +866,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/06-free-text.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index 58919e51..fce8de0c 100644
--- a/404.html
+++ b/404.html
@@ -314,8 +314,8 @@ <h1>Page not found</h1>
   "url": "https://librarycarpentry.github.io/lc-shell/404.html",
   "identifier": "https://librarycarpentry.github.io/lc-shell/404.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 881790ca..9a36efb7 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -334,7 +334,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://librarycarpentry.github.io/lc-shell/CODE_OF_CONDUCT.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 94527cbc..a5fc0f73 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -385,7 +385,7 @@ <h1>Licenses</h1>
   "identifier": "https://librarycarpentry.github.io/lc-shell/LICENSE.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index b795404e..99e5aae1 100644
--- a/aio.html
+++ b/aio.html
@@ -1525,7 +1525,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb6">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1946,7 +1946,7 @@ <h3 class="callout-title">Adding another pipe<a class="anchor" aria-label="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>cat</code> command just outputs whatever it gets as input,
 so you get exactly the same output from</p>
@@ -2003,7 +2003,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Here we use the <code>wc</code> command with the <code>-w</code>
 (word) flag on all <code>tsv</code> files, <code>sort</code> them and
@@ -2038,7 +2038,7 @@ <h3 class="callout-title">Counting number of files<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
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 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb29">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2068,7 +2068,7 @@ <h3 class="callout-title">Writing to files<a class="anchor" aria-label="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2103,7 +2103,7 @@ <h3 class="callout-title">Appending to a file<a class="anchor" aria-label="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb31">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2136,7 +2136,7 @@ <h3 class="callout-title">Counting the number of words<a class="anchor" aria-lab
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>From <code>man wc</code>, you will see that there is a
 <code>-w</code> flag to print the number of words:</p>
@@ -2355,7 +2355,7 @@ <h3 class="callout-title">Automatically adding a date prefix<a class="anchor" ar
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7">Show me the solution</h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Using <code>date --help</code> (on Git Bash for Windows or Linux) or
 <code>man date</code> (on macOS or Linux) will show you that the
@@ -2432,7 +2432,7 @@ <h3 class="callout-title">Case sensitive search<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8">Show me the solution</h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb52">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2462,7 +2462,7 @@ <h3 class="callout-title">Case sensitive search in select files<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9">Show me the solution</h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb53">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2492,7 +2492,7 @@ <h3 class="callout-title">Count words (case sensitive)<a class="anchor" aria-lab
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution10" aria-expanded="false" aria-controls="collapseSolution10">
   <h4 class="accordion-header" id="headingSolution10">Show me the solution</h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb54">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2522,7 +2522,7 @@ <h3 class="callout-title">Count words (case insensitive)<a class="anchor" aria-l
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution11" aria-expanded="false" aria-controls="collapseSolution11">
   <h4 class="accordion-header" id="headingSolution11">Show me the solution</h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb55">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2552,7 +2552,7 @@ <h3 class="callout-title">Case insensitive search in select files<a class="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
   <h4 class="accordion-header" id="headingSolution12">Show me the solution</h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb56">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2583,7 +2583,7 @@ <h3 class="callout-title">Case insensitive search in select files (whole
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
   <h4 class="accordion-header" id="headingSolution13">Show me the solution</h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb57">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2616,7 +2616,7 @@ <h3 class="callout-title">Searching with regular expressions<a class="anchor" ar
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution14" aria-expanded="false" aria-controls="collapseSolution14">
   <h4 class="accordion-header" id="headingSolution14">Show me the solution</h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb58">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2663,7 +2663,7 @@ <h3 class="callout-title">Finding unique values<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution15" aria-expanded="false" aria-controls="collapseSolution15">
   <h4 class="accordion-header" id="headingSolution15">Show me the solution</h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb60">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2763,7 +2763,7 @@ <h3 class="callout-title">Why are the variables double-quoted here?<a class="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution16" aria-expanded="false" aria-controls="collapseSolution16">
   <h4 class="accordion-header" id="headingSolution16">Solutions</h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <div class="accordion-body">
 <ol style="list-style-type: lower-alpha">
 <li><p>Because we are explicitly listing the names after
@@ -2847,7 +2847,7 @@ <h3 id="now-your-turn">Now your turn<a class="anchor" aria-label="anchor" href="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution17" aria-expanded="false" aria-controls="collapseSolution17">
   <h4 class="accordion-header" id="headingSolution17">Show me the solution</h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <p>First, let’s see where our desired columns are:</p>
 <div class="codewrapper sourceCode" id="cb68">
@@ -3500,8 +3500,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://librarycarpentry.github.io/lc-shell/aio.html",
   "identifier": "https://librarycarpentry.github.io/lc-shell/aio.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/contribute.html b/contribute.html
index 889b06a8..d744224e 100644
--- a/contribute.html
+++ b/contribute.html
@@ -337,7 +337,7 @@ <h1>Contribute</h1>
   "identifier": "https://librarycarpentry.github.io/lc-shell/contribute.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-08-29",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/discuss.html b/discuss.html
index 5e1dcc4c..e26620d6 100644
--- a/discuss.html
+++ b/discuss.html
@@ -334,7 +334,7 @@ <h1>Discussion</h1>
   "identifier": "https://librarycarpentry.github.io/lc-shell/discuss.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-08-29",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 660465f6..b9c72b71 100644
--- a/images.html
+++ b/images.html
@@ -363,8 +363,8 @@ <h3 id="05-counting-mining-figure-1">Figure 1</h3>
   "url": "https://librarycarpentry.github.io/lc-shell/images.html",
   "identifier": "https://librarycarpentry.github.io/lc-shell/images.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index 7803bfd3..b770be5b 100644
--- a/index.html
+++ b/index.html
@@ -423,8 +423,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "url": "https://librarycarpentry.github.io/lc-shell/index.html",
   "identifier": "https://librarycarpentry.github.io/lc-shell/index.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index 92f301a0..241b30c7 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -665,8 +665,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "url": "https://librarycarpentry.github.io/lc-shell/instructor-notes.html",
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor-notes.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/01-intro-shell.html b/instructor/01-intro-shell.html
index e92daf28..c2ece340 100644
--- a/instructor/01-intro-shell.html
+++ b/instructor/01-intro-shell.html
@@ -435,7 +435,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/01-intro-shell.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/02-navigating-the-filesystem.html b/instructor/02-navigating-the-filesystem.html
index 67481334..fbead7fc 100644
--- a/instructor/02-navigating-the-filesystem.html
+++ b/instructor/02-navigating-the-filesystem.html
@@ -682,7 +682,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/02-navigating-the-filesystem.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-02-23",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/03-working-with-files-and-folders.html b/instructor/03-working-with-files-and-folders.html
index e66b12dd..3688b378 100644
--- a/instructor/03-working-with-files-and-folders.html
+++ b/instructor/03-working-with-files-and-folders.html
@@ -877,7 +877,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/03-working-with-files-and-folders.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-02-23",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/04-loops.html b/instructor/04-loops.html
index 6b4a6fda..4cbd3248 100644
--- a/instructor/04-loops.html
+++ b/instructor/04-loops.html
@@ -458,7 +458,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb6">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -589,7 +589,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/04-loops.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-02-23",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/05-counting-mining.html b/instructor/05-counting-mining.html
index b7503b58..2d28f5a2 100644
--- a/instructor/05-counting-mining.html
+++ b/instructor/05-counting-mining.html
@@ -614,7 +614,7 @@ <h3 class="callout-title">Adding another pipe<a class="anchor" aria-label="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>cat</code> command just outputs whatever it gets as input,
 so you get exactly the same output from</p>
@@ -671,7 +671,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Here we use the <code>wc</code> command with the <code>-w</code>
 (word) flag on all <code>tsv</code> files, <code>sort</code> them and
@@ -706,7 +706,7 @@ <h3 class="callout-title">Counting number of files<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb29">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -736,7 +736,7 @@ <h3 class="callout-title">Writing to files<a class="anchor" aria-label="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -771,7 +771,7 @@ <h3 class="callout-title">Appending to a file<a class="anchor" aria-label="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb31">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -804,7 +804,7 @@ <h3 class="callout-title">Counting the number of words<a class="anchor" aria-lab
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>From <code>man wc</code>, you will see that there is a
 <code>-w</code> flag to print the number of words:</p>
@@ -1022,7 +1022,7 @@ <h3 class="callout-title">Automatically adding a date prefix<a class="anchor" ar
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7">Show me the solution</h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Using <code>date --help</code> (on Git Bash for Windows or Linux) or
 <code>man date</code> (on macOS or Linux) will show you that the
@@ -1099,7 +1099,7 @@ <h3 class="callout-title">Case sensitive search<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8">Show me the solution</h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb52">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1129,7 +1129,7 @@ <h3 class="callout-title">Case sensitive search in select files<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9">Show me the solution</h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb53">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1159,7 +1159,7 @@ <h3 class="callout-title">Count words (case sensitive)<a class="anchor" aria-lab
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution10" aria-expanded="false" aria-controls="collapseSolution10">
   <h4 class="accordion-header" id="headingSolution10">Show me the solution</h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb54">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1189,7 +1189,7 @@ <h3 class="callout-title">Count words (case insensitive)<a class="anchor" aria-l
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution11" aria-expanded="false" aria-controls="collapseSolution11">
   <h4 class="accordion-header" id="headingSolution11">Show me the solution</h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb55">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1219,7 +1219,7 @@ <h3 class="callout-title">Case insensitive search in select files<a class="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
   <h4 class="accordion-header" id="headingSolution12">Show me the solution</h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb56">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1250,7 +1250,7 @@ <h3 class="callout-title">Case insensitive search in select files (whole
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
   <h4 class="accordion-header" id="headingSolution13">Show me the solution</h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb57">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1283,7 +1283,7 @@ <h3 class="callout-title">Searching with regular expressions<a class="anchor" ar
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution14" aria-expanded="false" aria-controls="collapseSolution14">
   <h4 class="accordion-header" id="headingSolution14">Show me the solution</h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb58">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1330,7 +1330,7 @@ <h3 class="callout-title">Finding unique values<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution15" aria-expanded="false" aria-controls="collapseSolution15">
   <h4 class="accordion-header" id="headingSolution15">Show me the solution</h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb60">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1425,7 +1425,7 @@ <h3 class="callout-title">Why are the variables double-quoted here?<a class="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution16" aria-expanded="false" aria-controls="collapseSolution16">
   <h4 class="accordion-header" id="headingSolution16">Solutions</h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <div class="accordion-body">
 <ol style="list-style-type: lower-alpha"><li><p>Because we are explicitly listing the names after
 <code>in</code>, and those contain no white-space. However, for
@@ -1506,7 +1506,7 @@ <h3 id="now-your-turn">Now your turn<a class="anchor" aria-label="anchor" href="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution17" aria-expanded="false" aria-controls="collapseSolution17">
   <h4 class="accordion-header" id="headingSolution17">Show me the solution</h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <p>First, let’s see where our desired columns are:</p>
 <div class="codewrapper sourceCode" id="cb68">
@@ -1614,7 +1614,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/05-counting-mining.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-02-23",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/06-free-text.html b/instructor/06-free-text.html
index 689869a0..2dcbb978 100644
--- a/instructor/06-free-text.html
+++ b/instructor/06-free-text.html
@@ -868,7 +868,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/06-free-text.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 2a5310fd..fec9e77f 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -314,8 +314,8 @@ <h1>Page not found</h1>
   "url": "https://librarycarpentry.github.io/lc-shell/instructor/404.html",
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/404.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index bc416369..4e8dc37c 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -336,7 +336,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index b5272b4d..c2af3c13 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -387,7 +387,7 @@ <h1>Licenses</h1>
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/LICENSE.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index 5928ffdc..28603810 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -1531,7 +1531,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb6">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1953,7 +1953,7 @@ <h3 class="callout-title">Adding another pipe<a class="anchor" aria-label="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>cat</code> command just outputs whatever it gets as input,
 so you get exactly the same output from</p>
@@ -2010,7 +2010,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Here we use the <code>wc</code> command with the <code>-w</code>
 (word) flag on all <code>tsv</code> files, <code>sort</code> them and
@@ -2045,7 +2045,7 @@ <h3 class="callout-title">Counting number of files<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb29">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2075,7 +2075,7 @@ <h3 class="callout-title">Writing to files<a class="anchor" aria-label="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb30">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2110,7 +2110,7 @@ <h3 class="callout-title">Appending to a file<a class="anchor" aria-label="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb31">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2143,7 +2143,7 @@ <h3 class="callout-title">Counting the number of words<a class="anchor" aria-lab
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>From <code>man wc</code>, you will see that there is a
 <code>-w</code> flag to print the number of words:</p>
@@ -2362,7 +2362,7 @@ <h3 class="callout-title">Automatically adding a date prefix<a class="anchor" ar
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7">Show me the solution</h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Using <code>date --help</code> (on Git Bash for Windows or Linux) or
 <code>man date</code> (on macOS or Linux) will show you that the
@@ -2439,7 +2439,7 @@ <h3 class="callout-title">Case sensitive search<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8">Show me the solution</h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb52">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2469,7 +2469,7 @@ <h3 class="callout-title">Case sensitive search in select files<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9">Show me the solution</h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb53">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2499,7 +2499,7 @@ <h3 class="callout-title">Count words (case sensitive)<a class="anchor" aria-lab
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution10" aria-expanded="false" aria-controls="collapseSolution10">
   <h4 class="accordion-header" id="headingSolution10">Show me the solution</h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb54">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2529,7 +2529,7 @@ <h3 class="callout-title">Count words (case insensitive)<a class="anchor" aria-l
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution11" aria-expanded="false" aria-controls="collapseSolution11">
   <h4 class="accordion-header" id="headingSolution11">Show me the solution</h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb55">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2559,7 +2559,7 @@ <h3 class="callout-title">Case insensitive search in select files<a class="ancho
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
   <h4 class="accordion-header" id="headingSolution12">Show me the solution</h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb56">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2590,7 +2590,7 @@ <h3 class="callout-title">Case insensitive search in select files (whole
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
   <h4 class="accordion-header" id="headingSolution13">Show me the solution</h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb57">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2623,7 +2623,7 @@ <h3 class="callout-title">Searching with regular expressions<a class="anchor" ar
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution14" aria-expanded="false" aria-controls="collapseSolution14">
   <h4 class="accordion-header" id="headingSolution14">Show me the solution</h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb58">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2670,7 +2670,7 @@ <h3 class="callout-title">Finding unique values<a class="anchor" aria-label="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution15" aria-expanded="false" aria-controls="collapseSolution15">
   <h4 class="accordion-header" id="headingSolution15">Show me the solution</h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb60">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2770,7 +2770,7 @@ <h3 class="callout-title">Why are the variables double-quoted here?<a class="anc
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution16" aria-expanded="false" aria-controls="collapseSolution16">
   <h4 class="accordion-header" id="headingSolution16">Solutions</h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <div class="accordion-body">
 <ol style="list-style-type: lower-alpha">
 <li><p>Because we are explicitly listing the names after
@@ -2854,7 +2854,7 @@ <h3 id="now-your-turn">Now your turn<a class="anchor" aria-label="anchor" href="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution17" aria-expanded="false" aria-controls="collapseSolution17">
   <h4 class="accordion-header" id="headingSolution17">Show me the solution</h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <p>First, let’s see where our desired columns are:</p>
 <div class="codewrapper sourceCode" id="cb68">
@@ -3508,8 +3508,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
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 }
 
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diff --git a/instructor/contribute.html b/instructor/contribute.html
index c870553d..1fd02d58 100644
--- a/instructor/contribute.html
+++ b/instructor/contribute.html
@@ -339,7 +339,7 @@ <h1>Contribute</h1>
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/contribute.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-08-29",
-  "datePublished": "2024-04-23"
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diff --git a/instructor/discuss.html b/instructor/discuss.html
index 6cfe7798..b0d377c6 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -336,7 +336,7 @@ <h1>Discussion</h1>
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/discuss.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-08-29",
-  "datePublished": "2024-04-23"
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 }
 
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diff --git a/instructor/images.html b/instructor/images.html
index c47fa814..40d531a0 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -365,8 +365,8 @@ <h3 id="05-counting-mining-figure-1">Figure 1</h3>
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   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/images.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
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 }
 
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diff --git a/instructor/index.html b/instructor/index.html
index 75f10a89..35a4039a 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -495,8 +495,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
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   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/index.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
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diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index af094dfd..06512557 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -673,8 +673,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
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   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/instructor-notes.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
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 }
 
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diff --git a/instructor/key-points.html b/instructor/key-points.html
index d799a616..5af600e4 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -386,8 +386,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/key-points.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
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 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index dca18975..c453c1d9 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -285,8 +285,8 @@ <h1>Learner Profiles</h1>
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   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/profiles.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index c123bcd1..10e742b9 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -451,7 +451,7 @@ <h3 id="shell-working-with-free-text">Shell: Working with Free Text<a class="anc
   "identifier": "https://librarycarpentry.github.io/lc-shell/instructor/reference.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-09-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index 35bba799..9888a339 100644
--- a/key-points.html
+++ b/key-points.html
@@ -384,8 +384,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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   "identifier": "https://librarycarpentry.github.io/lc-shell/key-points.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index 00ebf9f1..dfe5730a 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 3.1.11
 pkgdown: 2.0.9
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-04-23T00:06Z
+last_built: 2024-04-30T00:05Z
 
diff --git a/profiles.html b/profiles.html
index 0be2c249..f0b28280 100644
--- a/profiles.html
+++ b/profiles.html
@@ -285,8 +285,8 @@ <h1>Learner Profiles</h1>
   "url": "https://librarycarpentry.github.io/lc-shell/profiles.html",
   "identifier": "https://librarycarpentry.github.io/lc-shell/profiles.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-04-23",
-  "datePublished": "2024-04-23"
+  "dateModified": "2024-04-30",
+  "datePublished": "2024-04-30"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index 692fb981..e6a0756e 100644
--- a/reference.html
+++ b/reference.html
@@ -449,7 +449,7 @@ <h3 id="shell-working-with-free-text">Shell: Working with Free Text<a class="anc
   "identifier": "https://librarycarpentry.github.io/lc-shell/reference.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-09-08",
-  "datePublished": "2024-04-23"
+  "datePublished": "2024-04-30"
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