# pstree > A convenient tool to show running processes as a tree. > More information: . - Display a tree of all processes (rooted at init): `pstree` - Display a tree of processes with PIDs: `pstree {{[-p|--show-pids]}}` - Display all process trees rooted at processes owned by specified user: `pstree {{user}}` - Display command line arguments: `pstree {{[-a|--arguments]}}` - Display children of a specified process: `pstree {{pid}}` - Display parents of a specified process: `pstree {{[-s|--show-parents]}} {{pid}}`