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cron [2013/10/16 23:52]
admin
cron [2013/10/16 23:57] (current)
admin
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 Cron is driven by a crontab (cron table) file, a configuration file that specifies shell commands to run periodically on a given schedule. The crontab files are stored where the lists of jobs and other instructions to the cron daemon are kept. Users can have their own individual crontab files and often there is a system wide crontab file (usually in /etc or a subdirectory of /etc) that only system administrators can edit. Cron is driven by a crontab (cron table) file, a configuration file that specifies shell commands to run periodically on a given schedule. The crontab files are stored where the lists of jobs and other instructions to the cron daemon are kept. Users can have their own individual crontab files and often there is a system wide crontab file (usually in /etc or a subdirectory of /etc) that only system administrators can edit.
  
 +<​file>​
     *  *  *  *  *  command to execute     *  *  *  *  *  command to execute
     ┬  ┬  ┬  ┬  ┬     ┬  ┬  ┬  ┬  ┬
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     └──────────────── min (0 - 59)     └──────────────── min (0 - 59)
  
 +</​file>​
 [[http://​en.wikipedia.org/​wiki/​Cron|Cron article on Wikipedia ]] [[http://​en.wikipedia.org/​wiki/​Cron|Cron article on Wikipedia ]]
cron.txt · Last modified: 2013/10/16 23:57 by admin