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create an application launcher shortcut that allow only one process of it running

Terminal - create an application launcher shortcut that allow only one process of it running
sh -c 'if pgrep x2vnc && env LC_ALL=C xmessage -button "Kill it:0,Ignore it:1" "Another connection is already running. Should I kill it instead of ignoring it?"; then killall x2vnc; fi; x2vnc -passwd /home/Ariel/.vnc/passwd -east emerson:0'
2010-07-06 09:11:12
User: zhangweiwu
Functions: env killall sh
0
create an application launcher shortcut that allow only one process of it running

This command is suitable to use as application launching command for a desktop shortcut. It checks if the application is already running by pgrepping its process ID, and offer user to kill the old process before starting a new one.

It is useful for a few x11 application that, if re-run, is more likely a mistake. In my example, x2vnc is an x11 app that does not quit when its connection is broken, and would not work well when a second process establish a second connection after the first broken one.

The LC_ALL=C for xmesseng is necessary for OpenSUSE systems to avoid a bug. If you don't find needing it, remove the "env LC_ALL=C" part

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Terminal - Alternatives

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