Just as short but makes for a more intuitive process relationship---all $cmdX processes are children of the script instead of $cmd3 being a child of $cmd2 which is a child of $cmd1: 
fork or exec $cmd1;
fork or exec $cmd2;
fork or exec $cmd3;

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In reply to Re^2: Launching multiple programs from Perl script by mbethke
in thread Launching multiple programs from Perl script by Shawrich

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