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Wednesday, July 21, 2010 

Signals, really cool!

In short, its the notification sent to a process to notify it of the various events. We are familiar with signal SIGKILL (9) and it is used to terminate a process, especially when the server load becomes abnormal. There are situations where we cannot simply kill the processes away, for example, when a critical backup process overloads the server.

The kill command has signals to suspend/unsuspend a process temporarily without killing it. Here we go ...

kill -SIGSTOP 17065 ; To suspend it temporarily
kill -SIGCONT 17065 ; To unsuspend ...

If you want to see the other signals available, try kill -l

Try it out, when you get a chance


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  • Nick Perrydoo
  • Spawn at Philippines
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