diff --git a/cmdline/bin/dcat.dart b/cmdline/bin/dcat.dart
deleted file mode 100644
index c1010a7..0000000
--- a/cmdline/bin/dcat.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library dcat;
-
-import 'dart:convert';
-import 'dart:io';
-
-import 'package:args/args.dart';
-
-const lineNumber = 'line-number';
-
-ArgResults argResults;
-
-/// Simple implementation of the *nix cat utility.
-///
-/// Usage: dart dcat.dart [-n] patterns files
-///
-/// `dcat` reads `files` sequentially, writing them to standard output. The
-/// file operands are processed in command-line order.
-/// If `files` is absent, `dcat` reads from the standard input until `EOF`.
-///
-/// Unlike the *nix `cat`, `dcat` does not support single dash ('-') arguments.
-
-void main(List<String> arguments) {
-  exitCode = 0; //presume success
-  final parser = ArgParser()..addFlag(lineNumber, negatable: false, abbr: 'n');
-
-  argResults = parser.parse(arguments);
-  final paths = argResults.rest;
-
-  dcat(paths, argResults[lineNumber]);
-}
-
-Future dcat(List<String> paths, bool showLineNumbers) async {
-  if (paths.isEmpty) {
-    // No files provided as arguments. Read from stdin and print each line.
-    await stdin.pipe(stdout);
-  } else {
-    for (var path in paths) {
-      var lineNumber = 1;
-      final lines = utf8.decoder
-          .bind(File(path).openRead())
-          .transform(const LineSplitter());
-      try {
-        await for (var line in lines) {
-          if (showLineNumbers) {
-            stdout.write('${lineNumber++} ');
-          }
-          stdout.writeln(line);
-        }
-      } catch (_) {
-        await _handleError(path);
-      }
-    }
-  }
-}
-
-Future _handleError(String path) async {
-  if (await FileSystemEntity.isDirectory(path)) {
-    stderr.writeln('error: $path is a directory');
-  } else {
-    exitCode = 2;
-  }
-}