Things to Do With 'kill' Jan 6, 2009, 23 :34 UTC (1 Talkback[s]) (3775 reads) (Other stories by Juliet Kemp)
"kill -0 pid: This doesn't actually kill the process, just returns 0 (success) if the process exists and 1 (failure) if not. The command itself will not give you any output -- you have to look at the exit code, using echo $? to get the information. So as a one-liner:
