Ps

ps command (process status) will display snapshot information of all active processes. Syntax: ps [options] How to display all the processes running in the system? Use "ps aux", as shown below.

# ps aux | more
USER       PID %CPU %MEM    VSZ    RSS TTY  STAT START TIME COMMAND
root         1  0.0    0.0    2044     588 ?   Ss Jun27 0:00  init [5]
apache    31186 0.0    1.6    23736  17556 ?   S  Jul26 0:40  /usr/local/apache2/bin/httpd