feat: improve bash-like command parsing

src/program/Printf.ts

@@ -0,0 +1,15 @@
+import { Item } from '../fs/Item'
+import type { SimpleStream } from '../utils/SimpleStream'
+import { Program } from './Program'
+
+export class Printf extends Program {
+    constructor() {
+        super()
+    }
+
+    async Exec(_: SimpleStream<string>, stdout: SimpleStream<string>, __: Item, args: string[]): Promise<number> {
+        stdout.emit(args.slice(1).join(' '))
+
+        return 0
+    }
+}