From acb90114a05c0a139112b69fac25f8847bc48fa3 Mon Sep 17 00:00:00 2001
From: Pezhman-Azizi <80008463+Pezhman-Azizi@users.noreply.github.com>
Date: Fri, 7 Mar 2025 10:15:00 +0000
Subject: [PATCH 1/2] Implement Bash scripts to process scores.json and
 person.json, extracting names, scores, cities, and performing calculations.

---
 jq/script-01.sh | 1 +
 jq/script-02.sh | 2 ++
 jq/script-03.sh | 1 +
 jq/script-04.sh | 1 +
 jq/script-05.sh | 1 +
 jq/script-06.sh | 1 +
 jq/script-07.sh | 1 +
 jq/script-08.sh | 1 +
 jq/script-09.sh | 1 +
 jq/script-10.sh | 1 +
 jq/script-11.sh | 1 +
 11 files changed, 12 insertions(+)

diff --git a/jq/script-01.sh b/jq/script-01.sh
index 95827f6..0d69705 100755
--- a/jq/script-01.sh
+++ b/jq/script-01.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the person.json file.
 # TODO: Write a command to output the name of the person.
 # Your output should be exactly the string "Selma", but should not contain any quote characters.
+jq -r '.name' person.json
diff --git a/jq/script-02.sh b/jq/script-02.sh
index 21544d6..e7c322d 100755
--- a/jq/script-02.sh
+++ b/jq/script-02.sh
@@ -5,3 +5,5 @@ set -euo pipefail
 # The input for this script is the person.json file.
 # TODO: Write a command to output the address of the person, all on one line, with a comma between each line.
 # Your output should be exactly the string "35 Fashion Street, London, E1 6PX", but should not contain any quote characters.
+jq -r '.address | join(", ")' person.json
+
diff --git a/jq/script-03.sh b/jq/script-03.sh
index 3566f03..d815788 100755
--- a/jq/script-03.sh
+++ b/jq/script-03.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the person.json file.
 # TODO: Write a command to output the name of the person, then a comma, then their profession.
 # Your output should be exactly the string "Selma, Software Engineer", but should not contain any quote characters.
+jq -r '[.name, .profession] | join(", ")' person.json
diff --git a/jq/script-04.sh b/jq/script-04.sh
index 015997e..e50f742 100755
--- a/jq/script-04.sh
+++ b/jq/script-04.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player, one per line.
 # Your output should contain 6 lines, each with just one word on it.
 # Your output should not contain any quote characters.
+jq -r '.[].name' scores.json
diff --git a/jq/script-05.sh b/jq/script-05.sh
index 993fc9e..ab78fba 100755
--- a/jq/script-05.sh
+++ b/jq/script-05.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the scores.json file.
 # TODO: Write a command to output the names of each player, as well as their city.
 # Your output should contain 6 lines, each with two words on it.
+jq -r '.[] | "\(.name) \(.city)"' scores.json
diff --git a/jq/script-06.sh b/jq/script-06.sh
index 8b6e74c..47fee35 100755
--- a/jq/script-06.sh
+++ b/jq/script-06.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the score from their first attempt.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 1" with no quotes.
+jq -r '.[] | "\(.name) \(.scores[0])"' scores.json
diff --git a/jq/script-07.sh b/jq/script-07.sh
index d43f93d..f20ab3d 100755
--- a/jq/script-07.sh
+++ b/jq/script-07.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the score from their last attempt.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 4" with no quotes.
+jq -r '.[] | "\(.name) \(.scores[-1])"' scores.json
diff --git a/jq/script-08.sh b/jq/script-08.sh
index 6671fd1..165e67a 100755
--- a/jq/script-08.sh
+++ b/jq/script-08.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the number of times they've played the game.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 3" with no quotes.
+jq -r '.[] | "\(.name) \(.scores | length)"' scores.json
diff --git a/jq/script-09.sh b/jq/script-09.sh
index c2536a5..3ce4c2b 100755
--- a/jq/script-09.sh
+++ b/jq/script-09.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # TODO: Write a command to output just the names of each player along with the total scores from all of their games added together.
 # Your output should contain 6 lines, each with one word and one number on it.
 # The first line should be "Ahmed 15" with no quotes.
+jq -r '.[] | "\(.name) \(.scores | add)"' scores.json
diff --git a/jq/script-10.sh b/jq/script-10.sh
index 8e9d75f..e133407 100755
--- a/jq/script-10.sh
+++ b/jq/script-10.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the scores.json file.
 # TODO: Write a command to output the total of adding together all players' first scores.
 # Your output should be exactly the number 54.
+jq '[.[].scores[0]] | add' scores.json
diff --git a/jq/script-11.sh b/jq/script-11.sh
index d2337a6..943b36a 100755
--- a/jq/script-11.sh
+++ b/jq/script-11.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the scores.json file.
 # TODO: Write a command to output the total of adding together all scores from all games from all players.
 # Your output should be exactly the number 164.
+jq '[.[].scores[]] | add' scores.json

From 9fd22b2875ebd3a944cae34d57956cc02315a3cb Mon Sep 17 00:00:00 2001
From: Pezhman-Azizi <80008463+Pezhman-Azizi@users.noreply.github.com>
Date: Fri, 7 Mar 2025 15:11:11 +0000
Subject: [PATCH 2/2] Enhanced shell pipeline exercises using ls, sort, uniq,
 head, tail, and tr for efficient text processing and command-line data
 manipulation.

---
 shell-pipelines/ls-grep/script-01.sh             | 1 +
 shell-pipelines/ls-grep/script-02.sh             | 1 +
 shell-pipelines/ls-grep/script-03.sh             | 1 +
 shell-pipelines/ls-grep/script-04.sh             | 1 +
 shell-pipelines/sort-uniq-head-tail/script-01.sh | 1 +
 shell-pipelines/sort-uniq-head-tail/script-02.sh | 1 +
 shell-pipelines/sort-uniq-head-tail/script-03.sh | 1 +
 shell-pipelines/sort-uniq-head-tail/script-04.sh | 1 +
 shell-pipelines/sort-uniq-head-tail/script-05.sh | 1 +
 shell-pipelines/sort-uniq-head-tail/script-06.sh | 2 ++
 shell-pipelines/sort-uniq-head-tail/script-07.sh | 1 +
 shell-pipelines/tr/script-01.sh                  | 1 +
 shell-pipelines/tr/script-02.sh                  | 1 +
 13 files changed, 14 insertions(+)

diff --git a/shell-pipelines/ls-grep/script-01.sh b/shell-pipelines/ls-grep/script-01.sh
index 8c7d968..b77993b 100755
--- a/shell-pipelines/ls-grep/script-01.sh
+++ b/shell-pipelines/ls-grep/script-01.sh
@@ -4,3 +4,4 @@ set -euo pipefail
 
 # TODO: Write a command to output the names of the files in the sample-files directory whose name contains at least one upper case letter.
 # Your output should contain 11 files.
+ls sample-files | grep '[A-Z]'
diff --git a/shell-pipelines/ls-grep/script-02.sh b/shell-pipelines/ls-grep/script-02.sh
index 16f5f71..4fa4206 100755
--- a/shell-pipelines/ls-grep/script-02.sh
+++ b/shell-pipelines/ls-grep/script-02.sh
@@ -4,3 +4,4 @@ set -euo pipefail
 
 # TODO: Write a command to output the names of the files in the sample-files directory whose name starts with an upper case letter.
 # Your output should contain 10 files.
+ls sample-files | grep '^[A-Z]'
diff --git a/shell-pipelines/ls-grep/script-03.sh b/shell-pipelines/ls-grep/script-03.sh
index a302ab0..9b79f1c 100755
--- a/shell-pipelines/ls-grep/script-03.sh
+++ b/shell-pipelines/ls-grep/script-03.sh
@@ -4,3 +4,4 @@ set -euo pipefail
 
 # TODO: Write a command to output the names of the files in the sample-files directory whose name starts with an upper case letter and doesn't contain any other upper case letters.
 # Your output should contain 7 files.
+ls sample-files | grep '^[A-Z][^A-Z]*$'
diff --git a/shell-pipelines/ls-grep/script-04.sh b/shell-pipelines/ls-grep/script-04.sh
index c000b7e..7ece87c 100755
--- a/shell-pipelines/ls-grep/script-04.sh
+++ b/shell-pipelines/ls-grep/script-04.sh
@@ -4,3 +4,4 @@ set -euo pipefail
 
 # TODO: Write a command to count the number of files in the sample-files directory whose name starts with an upper case letter and doesn't contain any other upper case letters.
 # Your output should be the number 7.
+ls sample-files | grep -c '^[A-Z][^A-Z]*$'
diff --git a/shell-pipelines/sort-uniq-head-tail/script-01.sh b/shell-pipelines/sort-uniq-head-tail/script-01.sh
index 171e1f9..845ad89 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-01.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-01.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the scores-table.txt file.
 # TODO: Write a command to output scores-table.txt, with lines sorted by the person's name.
 # The first line of your output should be "Ahmed London 1 10 4" (with no quotes). And the third line should be "Chandra Birmingham 12 6".
+sort scores-table.txt
diff --git a/shell-pipelines/sort-uniq-head-tail/script-02.sh b/shell-pipelines/sort-uniq-head-tail/script-02.sh
index 29c3c25..e028150 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-02.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-02.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the scores-table.txt file.
 # TODO: Write a command to output scores-table.txt, with lines sorted by the person's first score, descending.
 # The first line of your output should be "Basia London 22 9 6" (with no quotes).
+sort -k3,3nr scores-table.txt
diff --git a/shell-pipelines/sort-uniq-head-tail/script-03.sh b/shell-pipelines/sort-uniq-head-tail/script-03.sh
index bcbaf34..01e6b4d 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-03.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-03.sh
@@ -8,3 +8,4 @@ set -euo pipefail
 # Basia London 22 9 6
 # Piotr Glasgow 15 2 25 11 8
 # Chandra Birmingham 12 6
+sort -k3,3nr scores-table.txt | head -n 3
diff --git a/shell-pipelines/sort-uniq-head-tail/script-04.sh b/shell-pipelines/sort-uniq-head-tail/script-04.sh
index 65a5cfb..a42bac9 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-04.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-04.sh
@@ -5,3 +5,4 @@ set -euo pipefail
 # The input for this script is the scores-table.txt file.
 # TODO: Write a command to output scores-table.txt, with shows the line for the player whose first score was the second highest.
 # Your output should be: "Piotr Glasgow 15 2 25 11 8" (without quotes).
+sort -k3,3nr scores-table.txt | sed -n '2p'
diff --git a/shell-pipelines/sort-uniq-head-tail/script-05.sh b/shell-pipelines/sort-uniq-head-tail/script-05.sh
index a93cd9f..8eba57e 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-05.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-05.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # TODO: Write a command to show a list of all events that have happened, without duplication.
 # The order they're displayed doesn't matter, but we never want to see the same event listed twice.
 # Your output should contain 6 lines.
+sort events.txt | uniq
diff --git a/shell-pipelines/sort-uniq-head-tail/script-06.sh b/shell-pipelines/sort-uniq-head-tail/script-06.sh
index 715c7ae..1c628aa 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-06.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-06.sh
@@ -5,3 +5,5 @@ set -euo pipefail
 # The input for this script is the events.txt file.
 # TODO: Write a command to show how many times anyone has entered and exited.
 # It should be clear from your script's output that there have been 5 Entry events and 4 Exit events.
+
+grep -oE 'Entry|Exit' events.txt | sort | uniq -c
diff --git a/shell-pipelines/sort-uniq-head-tail/script-07.sh b/shell-pipelines/sort-uniq-head-tail/script-07.sh
index 7fd07e1..f65fed4 100755
--- a/shell-pipelines/sort-uniq-head-tail/script-07.sh
+++ b/shell-pipelines/sort-uniq-head-tail/script-07.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # TODO: Write a command to show how many times anyone has entered and exited.
 # It should be clear from your script's output that there have been 5 Entry events and 4 Exit events.
 # The word "Event" should not appear in your script's output.
+awk '{print $3}' events-with-timestamps.txt | grep -E 'Entry|Exit' | sort | uniq -c
diff --git a/shell-pipelines/tr/script-01.sh b/shell-pipelines/tr/script-01.sh
index 8bb0211..fe2acd5 100755
--- a/shell-pipelines/tr/script-01.sh
+++ b/shell-pipelines/tr/script-01.sh
@@ -6,3 +6,4 @@ set -euo pipefail
 # The author got feedback that they're using too many exclamation marks (!).
 #
 # TODO: Write a command to output the contents of text.txt with every exclamation mark (!) replaced with a full-stop (.).
+sed 's/!/./g' text.txt
diff --git a/shell-pipelines/tr/script-02.sh b/shell-pipelines/tr/script-02.sh
index cf3a503..8598e77 100755
--- a/shell-pipelines/tr/script-02.sh
+++ b/shell-pipelines/tr/script-02.sh
@@ -7,3 +7,4 @@ set -euo pipefail
 # so every Y should be a Z, and every Z should be a Y!
 #
 # TODO: Write a command to output the contents of text.txt with every Y and Z swapped (both upper and lower case).
+tr 'yYzZ' 'zZyY' < text.txt