> For the complete documentation index, see [llms.txt](https://ploegert.gitbook.io/til/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ploegert.gitbook.io/til/os/unix/process/list-parent-pid-with-ps.md).

# List Parent pid With ps

The `ps` command, which stands for `process status`, is a great way to find different processes running on a machine. Information like their `pid` (*process id*) is included. If you are tracking down a process to kill and find that that process is an unkillable zombie, then you may need to simultaneously kill the process' parent as well.

So, you'll need the parent `pid` as well. You can get both the `pid` and the parent `pid` of a process by including the `-f` flag with `ps`.

You may also want to include the `-e` flag to make sure that information about other users' processes is included in the results.