tldr/pages/common/supervisorctl.md

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# supervisorctl
> Supervisor is a client/server system that allows its users to control a number of processes on UNIX-like operating systems.
> Supervisorctl is the command-line client piece of the supervisor which provides a shell-like interface.
> More information: <http://supervisord.org>.
- Show the status of a process (or all processes if `process_name` is not specified):
`supervisorctl status {{process_name}}`
- Start/stop/restart a process:
`supervisorctl {{start|stop|restart}} {{process_name}}`
- Start/stop/restart all processes in a group:
`supervisorctl {{start|stop|restart}} {{group_name}}:*`
- Show last 100 **bytes** of process `stderr`:
`supervisorctl tail -100 {{process_name}} stderr`
- Keep displaying `stdout` of a process:
`supervisorctl tail -f {{process_name}} stdout`
- Reload process config file to add/remove processes as necessary:
`supervisorctl update`