diff --git a/cli.ts b/cli.ts
new file mode 100644
index 0000000..663438b
--- /dev/null
+++ b/cli.ts
@@ -0,0 +1,37 @@
+#!/usr/bin/env node
+
+import { open } from 'node:fs/promises';
+import { DataSource } from './src/data-source.js';
+import { ElfFile } from './src/elf.js';
+
+const filePath = process.argv[2];
+if (!filePath) {
+  console.error('Usage: elfy <path-to-elf-file>');
+  process.exit(1);
+}
+
+const fileHandle = await open(filePath, 'r');
+try {
+  const dataSource: DataSource = {
+    async read(offset: number, length: number): Promise<Uint8Array> {
+      const buffer = new Uint8Array(length);
+      const { bytesRead } = await fileHandle.read(buffer, 0, length, offset);
+      return buffer.slice(0, bytesRead);
+    },
+  };
+
+  const elf = new ElfFile(dataSource);
+  const { success, section } = await elf.tryReadSection('.note.gnu.build-id');
+  if (!success || !section) {
+    console.error('Could not find .note.gnu.build-id section');
+    process.exit(1);
+  }
+
+  const uuid = Array.from(section.slice(16, 36))
+    .map(b => b.toString(16).padStart(2, '0'))
+    .join('');
+
+  console.log(uuid);
+} finally {
+  await fileHandle.close();
+}
diff --git a/package.json b/package.json
index ec24e02..9138fc2 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,9 @@
   ],
   "author": "@bobbyg603",
   "license": "MIT",
+  "bin": {
+    "elfy": "dist/cli.js"
+  },
   "files": [
     "dist"
   ],
diff --git a/tsconfig.json b/tsconfig.json
index 57c1906..3c18c75 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -13,6 +13,6 @@
     "skipLibCheck": true,
     "forceConsistentCasingInFileNames": true
   },
-  "include": ["index.ts", "src/**/*.ts"],
+  "include": ["index.ts", "cli.ts", "src/**/*.ts"],
   "exclude": ["node_modules", "dist", "spec"]
 }