diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 000000000..ba48d4ea0
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,18 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Launch Program",
+      "skipFiles": [
+        "<node_internals>/**"
+      ],
+      "program": "${workspaceFolder}/implement-shell-tools/wc/wc.mjs"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/implement-shell-tools/cat/cat.mjs b/implement-shell-tools/cat/cat.mjs
new file mode 100644
index 000000000..d9630c33a
--- /dev/null
+++ b/implement-shell-tools/cat/cat.mjs
@@ -0,0 +1,48 @@
+import { program } from "commander";
+import { promises as fs } from "node:fs";
+import process from "node:process";
+
+
+program
+  .name("Display the contents of a file")
+  .description("Should effectively display the contents of a file as cat does even with extra flags")
+  .option("-n", "The character numbers all the lines of output.")
+  .option("-b", "The character numbers only the nonempty lines of the output")
+  .argument("<files...>");
+
+program.parse();
+
+const files = program.args;
+const options = program.opts();
+
+if (files.length === 0) {
+  console.error(`Expected at least 1 argument (a path) to be passed but got ${files.length}.`);
+  process.exit(1);
+}
+
+let lineNum = 1;
+
+for (const file of files) {
+  const content = await fs.readFile(file, "utf-8");
+  const lines = content.split("\n");
+
+  for (const line of lines) {
+    if (options.b) {
+      if (line.trim() !== "") {
+        console.log(`${(lineNum).toString().padStart(6)}  ${line}`);
+        lineNum++;
+      }
+      else {
+        console.log(line);
+      }
+    }
+    else if (options.n) {
+      console.log(`${(lineNum).toString().padStart(6)}  ${line}`);
+      lineNum++;
+    }
+    else {
+      console.log(line);
+    }
+  }
+
+}
diff --git a/implement-shell-tools/cat/package-lock.json b/implement-shell-tools/cat/package-lock.json
new file mode 100644
index 000000000..749fee721
--- /dev/null
+++ b/implement-shell-tools/cat/package-lock.json
@@ -0,0 +1,20 @@
+{
+  "name": "cat",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "commander": "^14.0.0"
+      }
+    },
+    "node_modules/commander": {
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-14.0.0.tgz",
+      "integrity": "sha512-2uM9rYjPvyq39NwLRqaiLtWHyDC1FvryJDa2ATTVims5YAS4PupsEQsDvP14FqhFr0P49CYDugi59xaxJlTXRA==",
+      "engines": {
+        "node": ">=20"
+      }
+    }
+  }
+}
diff --git a/implement-shell-tools/cat/package.json b/implement-shell-tools/cat/package.json
new file mode 100644
index 000000000..68279600c
--- /dev/null
+++ b/implement-shell-tools/cat/package.json
@@ -0,0 +1,6 @@
+{
+  "type": "module",
+  "dependencies": {
+    "commander": "^14.0.0"
+  }
+}
diff --git a/implement-shell-tools/ls/ls.mjs b/implement-shell-tools/ls/ls.mjs
new file mode 100644
index 000000000..fa34aa906
--- /dev/null
+++ b/implement-shell-tools/ls/ls.mjs
@@ -0,0 +1,38 @@
+import { program } from "commander";
+import { promises as fs } from "node:fs";
+import process from "node:process";
+
+program
+  .name("ls")
+  .description("This is a program to display the childern of a directory.")
+  .option("-1, --one", "This is to list all the children of a directory, one per line.")
+  .option("-a", "The flag to list the children of a directory one per line in long format.")
+  .argument("<filepath>")
+
+program.parse(process.argv);
+
+const opts = program.opts();
+const args = program.args;
+
+if (args.length != 1) {
+  console.error(`Expected exactly 1 argument (a path) to be passed but got ${args.length}.`);
+  process.exit(1);
+}
+
+const content = await fs.readdir(args[0], "utf-8");
+
+const results = content.join(' ')
+// const regex = '/\n/'
+
+const filtered = content.filter((word) => word.charAt(0) !== '.')
+
+if (opts.one) {
+  console.log(filtered.join('\n'))
+}
+else if (opts.a) {
+  console.log(content.join(' '));
+}
+else {
+  console.log(filtered.join(' '))
+}
+
diff --git a/implement-shell-tools/ls/package-lock.json b/implement-shell-tools/ls/package-lock.json
new file mode 100644
index 000000000..381e1a391
--- /dev/null
+++ b/implement-shell-tools/ls/package-lock.json
@@ -0,0 +1,20 @@
+{
+  "name": "ls",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "commander": "^14.0.0"
+      }
+    },
+    "node_modules/commander": {
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-14.0.0.tgz",
+      "integrity": "sha512-2uM9rYjPvyq39NwLRqaiLtWHyDC1FvryJDa2ATTVims5YAS4PupsEQsDvP14FqhFr0P49CYDugi59xaxJlTXRA==",
+      "engines": {
+        "node": ">=20"
+      }
+    }
+  }
+}
diff --git a/implement-shell-tools/ls/package.json b/implement-shell-tools/ls/package.json
new file mode 100644
index 000000000..ab8c9a348
--- /dev/null
+++ b/implement-shell-tools/ls/package.json
@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "commander": "^14.0.0"
+  }
+}
diff --git a/implement-shell-tools/wc/package-lock.json b/implement-shell-tools/wc/package-lock.json
new file mode 100644
index 000000000..6a23cbf7d
--- /dev/null
+++ b/implement-shell-tools/wc/package-lock.json
@@ -0,0 +1,20 @@
+{
+  "name": "wc",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "commander": "^14.0.0"
+      }
+    },
+    "node_modules/commander": {
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-14.0.0.tgz",
+      "integrity": "sha512-2uM9rYjPvyq39NwLRqaiLtWHyDC1FvryJDa2ATTVims5YAS4PupsEQsDvP14FqhFr0P49CYDugi59xaxJlTXRA==",
+      "engines": {
+        "node": ">=20"
+      }
+    }
+  }
+}
diff --git a/implement-shell-tools/wc/package.json b/implement-shell-tools/wc/package.json
new file mode 100644
index 000000000..ab8c9a348
--- /dev/null
+++ b/implement-shell-tools/wc/package.json
@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "commander": "^14.0.0"
+  }
+}
diff --git a/implement-shell-tools/wc/wc.mjs b/implement-shell-tools/wc/wc.mjs
new file mode 100644
index 000000000..84f7f4d13
--- /dev/null
+++ b/implement-shell-tools/wc/wc.mjs
@@ -0,0 +1,55 @@
+import { program } from "commander";
+import { promises as fs } from "node:fs";
+import process from "node:process";
+
+program
+  .name("wc")
+  .description("A program to implement word, character and line counter.")
+  .option("-l", "Counts the lines in a file")
+  .option("-w", "Counts the words in a file")
+  .option("-c", "Counts the characters in a file")
+  .argument("<filepath...>");
+
+program.parse(process.argv);
+
+const opts = program.opts();
+const args = program.args;
+
+if (args.length === 0) {
+  console.error(`Expected at least one argument but received ${args.length}`);
+  process.exit(1);
+}
+
+let totalLines = 0;
+let totalWords = 0;
+let totalChars = 0;
+
+for (const file of args) {
+  const content = await fs.readFile(file, "utf-8");
+  const linesArr = content.split('\n');
+  const lines = linesArr[linesArr.length - 1] === '' ? linesArr.length - 1 : linesArr.length;
+  const words = content.split(/\s+/).filter(Boolean).length;
+  const chars = content.length;
+    
+  totalLines += lines;
+  totalWords += words;
+  totalChars += chars;
+
+  let output = '';
+  if (opts.l) output += `${lines} `;
+  if (opts.w) output += `${words} `;
+  if (opts.c) output += `${chars} `;
+  if (!opts.l && !opts.w && !opts.c) output += `${lines} ${words} ${chars} `;
+  output += file;
+  console.log(output);
+}
+
+if (args.length > 1) {
+  let totalOutput = '';
+  if (opts.l) totalOutput += `${totalLines} `;
+  if (opts.w) totalOutput += `${totalWords} `;
+  if (opts.c) totalOutput += `${totalChars} `;
+  if (!opts.l && !opts.w && !opts.c) totalOutput += `${totalLines} ${totalWords} ${totalChars} `;
+  totalOutput += 'total';
+  console.log(totalOutput);
+}
\ No newline at end of file