diff --git a/bin/bibtex-tidy b/bin/bibtex-tidy
index bfad9ce..07350c1 100755
--- a/bin/bibtex-tidy
+++ b/bin/bibtex-tidy
@@ -4571,7 +4571,7 @@ function argsToOptions(argv2, skipInputArgs) {
 
 // src/cli/cli.ts
 var { readFile, writeFile, copyFile } = import_node_fs.promises;
-console.log(process.argv);
+console.log(process.argv, process.stdin.isTTY, process.env);
 var nodeVer = Number(import_node_process.versions.node.split(".")[0]);
 if (nodeVer < 12) {
   console.error("bibtex-tidy requires Node.js v12.0.0 or later");
diff --git a/src/cli/cli.ts b/src/cli/cli.ts
index a031e8d..1c7227f 100755
--- a/src/cli/cli.ts
+++ b/src/cli/cli.ts
@@ -9,7 +9,7 @@ import { argsToOptions } from "./argsToOptions";
 
 const { readFile, writeFile, copyFile } = fsp;
 
-console.log(process.argv);
+console.log(process.argv, process.stdin.isTTY, process.env);
 
 const nodeVer = Number(versions.node.split(".")[0]);