[StringyBob]

ps. By far the worst. Because it supports multiple syntax types I can never remember the ps command options. Even if you google for examples you get different syntax and end up with a mix of the same option letters doing different things in one command. It seems to lead to all sorts of subtly unexpected behaviors

[mixmastamyk]

    ps -ef | grep foo 

Is what I use 98% of the time.

[kQq9oHeAz6wLLS]

ps aux then pipe to grep and/or cut. Or sort. Or...

[qsdf38100]

ps afx

I like the forest (tree) mode.