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  • Users: rrot
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  1. rrot

    execute unix command with conditions

    Hello, everybody. i need to run a unix command (let's call it progxy) after pushing a button only if there is no other instance of this program already running. under bash-shell i would use: ps -C progxy || progxy i tried: button .can01.but01 -command {exec ps -C progxy||progxy &}...
    • rrot
    • Thread
    • Replies: 4
    • Forum: Tcl/Tk

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