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All the Perl that's Practical to Extract and Report

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  • You had

    ps -ef|grep "$user.*$app_name"|grep -v grep|sed -e 's/"//g' -e 's/.* script//'

    If you're using all GNU tools, you can improve that shell command a bit:

    ps --no-header --user "$user" --format command | grep "^$app_name" | sed 's/"//g;s/.* script//'

    • No grep for user (which may be output numerically under some conditions)
    • --no-header and --format mean you get only what you want out of ps
    • No grep -v to remove grep
    • No -e on the sed commands
    • Combined the sed commands into a single sed exp
    • We're on Solaris. Many tools and options I took for granted on *nix systems simply aren't available. For example, the ps command does recognize the --no-header or --user options.

      Other annoyances: tar doesn't recognize the z modifier and the absolute worst: grep doesn't recognize -r. No recursive grep. The options are either doing a find and piping the results to grep or using ack [] (the latter of which is lovely, I might add).