For questions pertaining to ps, a command for printing information about running processes. Use this tag for questions about ps itself or questions about issues arising from using the ps command-line utility.
According to the ps(1) man page
ps (short for "process status") displays a selection of the active processes, subject to having appropriate privileges to obtain information about those processes. If you want a repetitive update of the selection and the displayed information, use top instead.
Further reading
How can I prevent 'grep' from showing up in ps results?
Why does `htop` show more process than `ps`
What does aux mean in `ps aux`?
External References
ps specification (The Open Group Base Specifications Issue 7, 2018 edition)
