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1---
2title: Execute not blocking async shell command in C#
3url: non-blocking-shell-exec-csharp.html
4date: 2023-05-22T12:00:00+02:00
5type: notes
6draft: false
7tags: [csharp]
8---
9
10Execute a shell command in async in C# while not blocking the UI thread.
11
12```c#
13private async Task executeCopyCommand()
14{
15 await Task.Run(() =>
16 {
17 var processStartInfo = new ProcessStartInfo("cmd", "/c dir")
18 {
19 RedirectStandardOutput = true,
20 UseShellExecute = false,
21 CreateNoWindow = true
22 };
23
24 var process = new Process
25 {
26 StartInfo = processStartInfo
27 };
28
29 process.Start();
30 process.WaitForExit();
31 });
32}
33```
34
35Make sure that `async` is present in the function definition and `await` is used
36in the method that calls `executeCopyCommand()`.
37
38```c#
39private async void button_Click(object sender, EventArgs e)
40{
41 await executeCopyCommand();
42}
43```
44