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Cron Specification

Shruti Sharma
Ranch Hand

Joined: Mar 25, 2010
Posts: 55
Hello,

If the "Cron specification" is 0 0 0/4 * * ?, does that mean that the job will run every 4 hours a day? What does the ? mean in the cron specification?

Thank you,
-Shruti
Maneesh Godbole
Saloon Keeper

Joined: Jul 26, 2007
Posts: 10426
    
    8

http://en.wikipedia.org/wiki/Cron


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subject: Cron Specification