How do you look up a process in UNIX? (UNIX)

How do you grep a process?  And what is grep?  grep is actually a function to "grab" the process of a specific name in unix.  It helps you to identify which process is actually running on background.

/usr/ucb/ps -auxww | grep -i qm | grep -i GTSD25QM

-i = ignore letter case

Enjoy.