Add cat.js

Author: Zobeir-Rigi

implement-shell-tools/cat/cat.js

@@ -0,0 +1,12 @@
+import process from "node:process";
+import { promises as fs } from "node:fs";
+
+const argv = process.argv.slice(2);
+if (argv.length != 1) {
+    console.error(`Expected exactly 1 argument (a path) to be passed but got ${argv.length}.`);
+    process.exit(1);
+}
+const path = argv[0];
+const content = await fs.readFile(path, "utf-8");
+
+console.log(content);