> For the complete documentation index, see [llms.txt](https://docs.helmut.de/helmut4-releases/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.helmut.de/helmut4-releases/v4.8.0/helmut4-components/streamdesigner/nodes/actions/os/commandline-execute-action.md).

# Commandline Execute Action

With the help of the Commandline Execute Action it is possible to invoke a shell command on either the client or server. The Commandline Execute Action supports the windows, Mac, and unix shells. This makes it possible to trigger external third-party tools from a stream.