updates

kernel/bin/cat

@@ -0,0 +1,22 @@
+/** Shared helpers for drive-resident /bin scripts (prepended before each command). */
+function bareStdin(ctx) {
+  return typeof ctx.shellStdin === 'string' ? ctx.shellStdin : ''
+}
+
+async function run(ctx, argv) {
+  const vfs = ctx.vfs
+  const files = argv.slice(1)
+  if (!files.length) {
+    const s = bareStdin(ctx)
+    ctx.console.log(s)
+    return
+  }
+  for (const f of files) {
+    const buf = await vfs.readFile(f)
+    if (!buf) {
+      ctx.console.error('cat: ' + f + ': No such file or directory')
+      continue
+    }
+    ctx.console.log(ctx.b4a.toString(buf))
+  }
+}