prevent users to run the same script at the same time, on the same machine

pvpnguyen · 09-05-2007, 08:34 PM

Hello All,

Is there any way to prevent users to run the same script at the same time, on the same machine?

Thanks

cfaj · 09-05-2007, 08:46 PM

Quote:

Originally Posted by pvpnguyen

Is there any way to prevent users to run the same script at the same time, on the same machine?

Create a directory in /tmp; if you cannot create the directory,
someone else is already using the script.

Be sure to remove the directory when the script exits:
Code:
mkdir /tmp/${0##*/}-running 2>/dev/null || {
  echo script already running
  exit
}
trap 'rmdir /tmp/${0##*/}-running' EXIT

pvpnguyen · 09-05-2007, 08:52 PM

Thank you very much , Will this cover the case that the user hits Crtl-C?