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Add that and "cont () { ps -ec | grep $@ | kill -SIGCONT `awk '{print $1}'`; }" (without the quotes) to you bash profile and then use it to pause and resume processes safely
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killall -STOP processkillall -CONT processyes or pkill in,stead of killall
those work but my method goes in you .bashrc and is slightly less typing
If you have launched the process from a shell then you may use ctrl-z to "pause" a process, and 'bg'/'fg' to resume. So I'm guessing that this is useful when you want to stop/cont any process not necessarily launched from your shell.