diff --git a/implement-shell-tools/cat/cat.mjs b/implement-shell-tools/cat/cat.mjs
new file mode 100644
index 000000000..2bdabad59
--- /dev/null
+++ b/implement-shell-tools/cat/cat.mjs
@@ -0,0 +1,51 @@
+import { promises as fs } from "node:fs";  
+import { program } from "commander";
+
+program
+  .name("cat")
+  .description("my own cat program")
+  .option("-n", "number all lines")
+  .option("-b", "number non-empty lines")
+  .argument("<paths...>", "The file path to process");
+program.parse();
+
+const paths = program.args;
+const options = program.opts();
+
+let lineNumber = 1;
+
+for (const path of paths) {
+  try {
+    const content = await fs.readFile(path, "utf-8");
+    if (options.b) {
+      const lines = content.split("\n");
+
+      if (lines[lines.length - 1] === "") {
+        lines.pop();
+      }
+      for (const line of lines) {
+        if (line.trim() !== "") {
+          process.stdout.write(`     ${lineNumber} ${line}\n`);
+          lineNumber++;
+        } else {
+          process.stdout.write("\n");
+        }
+      }
+    } else if (options.n) {
+      const lines = content.split("\n");
+
+      if (lines[lines.length - 1] === "") {
+        lines.pop();
+      }
+
+      for (const line of lines) {
+        process.stdout.write(`     ${lineNumber} ${line}\n`);
+        lineNumber++;
+      }
+    } else {
+      process.stdout.write(content);
+    }
+  } catch (error) {
+    console.error(error.message);
+  }
+}
diff --git a/implement-shell-tools/ls/ls.mjs b/implement-shell-tools/ls/ls.mjs
new file mode 100644
index 000000000..5bbaafdc8
--- /dev/null
+++ b/implement-shell-tools/ls/ls.mjs
@@ -0,0 +1,24 @@
+import { promises as fs } from "node:fs";
+import { program } from "commander";
+
+program
+  .name("ls ")
+  .description("ls implementation")
+  .argument("[path]", "The path to process") //zero or one path
+  .option("-1, --one-per-line", "one file per line")
+  .option("-a", "show hidden files");
+program.parse();
+
+const path = program.args[0] || ".";
+const options = program.opts();
+try {
+  const files = await fs.readdir(path);
+
+  for (const file of files) {
+    if (options.a || !file.startsWith(".")) {
+      console.log(file);
+    }
+  }
+} catch (error) {
+  console.error(error.message);
+}
diff --git a/implement-shell-tools/package-lock.json b/implement-shell-tools/package-lock.json
new file mode 100644
index 000000000..928714cdf
--- /dev/null
+++ b/implement-shell-tools/package-lock.json
@@ -0,0 +1,20 @@
+{
+  "name": "implement-shell-tools",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "commander": "^15.0.0"
+      }
+    },
+    "node_modules/commander": {
+      "version": "15.0.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-15.0.0.tgz",
+      "integrity": "sha512-z67u4ZhzCL/Tydu1lJARtEZYWbWaN7oYLHbsuzocr6y4N6WZAagG3RQ4FW61V1/0+jImpj293XfrcYnd1qxtPg==",
+      "engines": {
+        "node": ">=22.12.0"
+      }
+    }
+  }
+}
diff --git a/implement-shell-tools/package.json b/implement-shell-tools/package.json
new file mode 100644
index 000000000..6bd6aa2a7
--- /dev/null
+++ b/implement-shell-tools/package.json
@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "commander": "^15.0.0"
+  }
+}
diff --git a/implement-shell-tools/wc/wc.mjs b/implement-shell-tools/wc/wc.mjs
new file mode 100644
index 000000000..eb8a67f8c
--- /dev/null
+++ b/implement-shell-tools/wc/wc.mjs
@@ -0,0 +1,59 @@
+import { program } from "commander";
+
+import { promises as fs } from "node:fs";
+
+program
+  .name("wc")
+  .description("wc implementation")
+  .argument("<paths...>", "the file path to process")
+  .option("-l", "count  lines")
+  .option("-w", "count  words")
+  .option("-c", "count characters");
+
+program.parse();
+
+const paths = program.args;
+const options = program.opts();
+const noFlag = !options.l && !options.w && !options.c;
+
+const total = {};
+let hadError = false;
+for (const path of paths) {
+  try {
+    const content = await fs.readFile(path, "utf-8");
+
+    const linesCounter = content.split("\n").length - 1;
+    const trimmedContent = content.trim();
+    const wordsCounter =
+      trimmedContent === "" ? 0 : trimmedContent.split(/\s+/).length;
+    const characterCounter = content.length;
+
+    const results = [];
+    if (options.l || noFlag) {
+      results.push(linesCounter);
+      total["lineCounter"] = (total["lineCounter"] ?? 0) + linesCounter;
+    }
+    if (options.w || noFlag) {
+      results.push(wordsCounter);
+      total["wordsCounter"] = (total["wordsCounter"] ?? 0) + wordsCounter;
+    }
+    if (options.c || noFlag) {
+      results.push(characterCounter);
+      total["characterCounter"] =
+        (total["characterCounter"] ?? 0) + characterCounter;
+    }
+
+      console.log(results.join(" ") + " " + path);
+  
+  } catch (error) {
+    console.error(error.message);
+    hadError = true;
+  }
+}
+if (paths.length > 1) {
+
+  console.log(Object.values(total).join(" "),"total")
+}
+if (hadError) {
+  process.exitCode = 1;
+}