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Thread: ps -ef - doubt

  1. #1
    Join Date
    Jan 2004
    Posts
    49

    Cool Unanswered: ps -ef - doubt

    Hi All,

    We are using db2 udb ver 7.x on AIX env. We are having a script to collect the snapshots and scheduled throguh crontab with 5 mins interval. We had taken care of number of script instance running (due to aviod some conf. in future). If it is more than one instance of the script is running, we'll throw an error msg on the log and stop the execution. I'm pasting the output of ps -ef command here.

    ************************************************** *******
    /home/kollers $ ps -ef | grep snap
    db2d003 68160 20494 0 13:45:00 - 0:00 sh -c /dcss/dsm/scripts/get_snapshot.ksh -p 3 > /dcss/logs/db2d003/get_snapshot.log 2>&1

    db2d003 74912 20494 0 13:35:00 - 0:00 ksh /dcss/dsm/scripts/get_snapshot.ksh -p 3

    db2d003 118336 20494 0 13:55:00 - 0:00 sh -c /dcss/dsm/scripts/get_snapshot.ksh -p 3 > /dcss/logs/db2d003/get_snapshot.log 2>&1

    db2d003 121822 20494 0 14:00:00 - 0:00 sh -c /dcss/dsm/scripts/get_snapshot.ksh -p 3 > /dcss/logs/db2d003/get_snapshot.log 2>&1

    db2d003 124840 20494 0 13:40:00 - 0:00 sh -c /dcss/dsm/scripts/get_snapshot.ksh -p 3 > /dcss/logs/db2d003/get_snapshot.log 2>&1

    db2d003 127066 20494 0 13:50:00 - 0:00 sh -c /dcss/dsm/scripts/get_snapshot.ksh -p 3 > /dcss/logs/db2d003/get_snapshot.log 2>&1

    ************************************************** *******
    If we look at the ps -ef output I'm not able to understand what is sh -c.

    From the above output you see, my script executing only once ie, started @13:35. what about other entries with sh -c?

    Can any one pls tell me....

    With advance thanks,

    Bala

  2. #2
    Join Date
    Mar 2004
    Location
    Toronto, ON, Canada
    Posts
    513
    "sh -c" is the way crontab launches the process.

    It looks like they're all still running... starting in 5 minute intervals.
    --
    Jonathan Petruk
    DB2 Database Consultant

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