Hi
i've been googling a lot but can't find an answer. All I would like to know is how to find out all processes that are running on a machine.
I know ps gives all YOUR processes.
thanks

look at ps(1)

thank you Hitori, what does >> mean? stdout?

Nothing at all. Something like quote . I've meant look at man page ps(1)

thanks Hitori I have

What is the difference between ps -e and ps -ef .
Also i have just loggged in and given the command ps -ef | grep gap44049

gap44049 19759 19056 1 16:57:34 pts/th 0:00 grep gap44049
gap44049 19758 19056 1 16:57:34 pts/th 0:00 ps -ef
gap44049 19056 19024 0 16:44:06 pts/th 0:00 /usr/local/bin/tcsh
gap44049 19024 19023 0 16:43:58 pts/th 0:00 -tcsh
What do these 4 processes mean when i have only one session running ?

ps -ef | grep gap44049

Implying that gap44049 is your login you can type simply ps -f instead of ps -ef | grep gap44049.

In output that you recieved there are info about all processes that are being executed (tcsh -the shell, ps, grep commands) (dont know what means ' -tcsh')

-f means full, i.e. show process uids, ppids
-e shows different set of columns