ps
The ps stands for process status and it is a handy tool used to retrieve the information about currently running processes on Linux or BSD systems. This cheatsheet collets the most useful ps invocations.

Show all processes

ps aux

Show all processes including commandline arguments

ps -AFl

Show all processes with threads in tree mode

ps -AlFH

Show processes in a hierarchy

ps -e -o pid,args --forest

Show list of processes owned by a specific user

ps -U user -u user u

Show information for a particular process

ps -p pid ps uax | grep process_name

Show all threads for a particular process by id

ps -p pid -L -o pid,tid,pcpu,state,comm

Get top 5 processes by CPU usage

ps -e -o pcpu,cpu,nice,state,cputime,args --sort pcpu | sed '/^ 0.0 /d'| tac |head -5 ps auxf | sort -nr -k 3 | head -5

Get top 5 processes by memory usage

ps -e -orss=,args= | sort -b -k1,1n | pr -TW$COLUMNS| tac | head -5 ps auxf | sort -nr -k 4 | head -5

Get security info

ps -eo euser,ruser,suser,fuser,f,comm,label Related Posts: