added new lines.

Author: ebrahimbeiati

.DS_Store

@@ -0,0 +1,15 @@
+{
+  "name": "module-tools",
+  "version": "1.0.0",
+  "description": "Exercises to practice and solidify your understanding of the Tools module of the Software Development Course.",
+  "main": "index.js",
+  "directories": {
+    "test": "tests"
+  },
+  "scripts": {
+    "test": "node tests/runIntegrationTests.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}

package.json

@@ -8,4 +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 -3
+sort -k3,3nr scores-table.txt | head -3

shell-pipelines/sort-uniq-head-tail/script-03.sh

@@ -5,4 +5,4 @@ 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.
-cut -d' ' -f1 events.txt | sort | uniq -c
+cut -d' ' -f1 events.txt | sort | uniq -c

shell-pipelines/sort-uniq-head-tail/script-06.sh

@@ -6,4 +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 (.).
-tr '!' '.' < text.txt
+tr '!' '.' < text.txt

shell-pipelines/tr/script-01.sh

@@ -7,4 +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
+tr 'YyZz' 'ZzYy' < text.txt

shell-pipelines/tr/script-02.sh

@@ -0,0 +1,96 @@
+const { execSync } = require("node:child_process");
+
+function runCommand(command) {
+  return execSync(command, { encoding: "utf-8" }).trim();
+}
+
+function normalizeOutput(output) {
+  return output.replaceAll(/\s+/g, " ").trim();
+}
+
+function test(name, systemCommand, nodeCommand) {
+  try {
+    const expected = normalizeOutput(runCommand(systemCommand));
+    const actual = normalizeOutput(runCommand(nodeCommand));
+    if (expected === actual) {
+      console.log(`✅ ${name} passed`);
+    } else {
+      console.error(`❌ ${name} failed`);
+      console.error(`Expected: "${expected}"`);
+      console.error(`Actual:   "${actual}"`);
+    }
+  } catch (error) {
+    console.error(`❌ ${name} failed with error: ${error.message}`);
+  }
+}
+
+/* CAT TESTS */
+test(
+  "cat single file",
+  "cat implement-shell-tools/cat/sample-files/1.txt",
+  "node implement-shell-tools/cat/cat.js implement-shell-tools/cat/sample-files/1.txt",
+);
+
+test(
+  "cat -n single file",
+  "cat -n implement-shell-tools/cat/sample-files/1.txt",
+  "node implement-shell-tools/cat/cat.js -n implement-shell-tools/cat/sample-files/1.txt",
+);
+
+test(
+  "cat multiple files",
+  "cat implement-shell-tools/cat/sample-files/*.txt",
+  "node implement-shell-tools/cat/cat.js implement-shell-tools/cat/sample-files/*.txt",
+);
+
+test(
+  "cat -n multiple files",
+  "cat -n implement-shell-tools/cat/sample-files/*.txt",
+  "node implement-shell-tools/cat/cat.js -n implement-shell-tools/cat/sample-files/*.txt",
+);
+
+test(
+  "cat -b file",
+  "cat -b implement-shell-tools/cat/sample-files/3.txt",
+  "node implement-shell-tools/cat/cat.js -b implement-shell-tools/cat/sample-files/3.txt",
+);
+
+/* LS TESTS */
+
+test(
+  "ls sample-files",
+  "ls implement-shell-tools/ls/sample-files",
+  "node implement-shell-tools/ls/ls.js implement-shell-tools/ls/sample-files",
+);
+
+/* WC TESTS */
+
+test(
+  "wc all files",
+  "wc implement-shell-tools/wc/sample-files/*",
+  "node implement-shell-tools/wc/wc.js implement-shell-tools/wc/sample-files/*",
+);
+
+test(
+  "wc -l single file",
+  "wc -l implement-shell-tools/wc/sample-files/3.txt",
+  "node implement-shell-tools/wc/wc.js -l implement-shell-tools/wc/sample-files/3.txt",
+);
+
+test(
+  "wc -w single file",
+  "wc -w implement-shell-tools/wc/sample-files/3.txt",
+  "node implement-shell-tools/wc/wc.js -w implement-shell-tools/wc/sample-files/3.txt",
+);
+
+test(
+  "wc -c single file",
+  "wc -c implement-shell-tools/wc/sample-files/3.txt",
+  "node implement-shell-tools/wc/wc.js -c implement-shell-tools/wc/sample-files/3.txt",
+);
+
+test(
+  "wc -l multiple files",
+  "wc -l implement-shell-tools/wc/sample-files/*",
+  "node implement-shell-tools/wc/wc.js -l implement-shell-tools/wc/sample-files/*",
+);