fix: added an example file (#2330)

Author: Anushreebasics

pkgs/process/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 5.0.6-wip
+
+* Add an example app.
+
 ## 5.0.5
 
 * Fix mixtures of parentheses and spaces in windows command paths.

pkgs/process/README.md

@@ -15,3 +15,11 @@ Unlike `dart:io`, `package:process` requires processes to be started with
 spawns processes in a hermetic way.
 
 [ProcessManager]: https://pub.dev/documentation/process/latest/process/ProcessManager-class.html
+
+## Example
+
+Run the example app from this package:
+
+```bash
+dart run example/main.dart
+```

pkgs/process/example/main.dart

@@ -0,0 +1,26 @@
+// Copyright (c) 2026, 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.
+
+import 'dart:io';
+
+import 'package:process/process.dart';
+
+Future<void> main() async {
+  const processManager = LocalProcessManager();
+
+  final executable = Platform.resolvedExecutable;
+  if (!processManager.canRun(executable)) {
+    stderr.writeln('Unable to run: $executable');
+    exitCode = 1;
+    return;
+  }
+
+  final result = await processManager.run([executable, '--version']);
+  stdout.write(result.stdout);
+  if (result.exitCode != 0) {
+    stderr.writeln('Command failed with exit code ${result.exitCode}.');
+    stderr.write(result.stderr);
+    exitCode = result.exitCode;
+  }
+}