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Simple question- what would a crontab entry look like for a command I want to run every week on Saturday at 8:05 AM?

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8 Answers 8

There is also a create crone checker which spits out a nice sentence.

http://cronchecker.net/

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This is for finding out what cron statements do. Not for generating them –  VBwhatnow Aug 14 at 7:39

You can also do like this:

Change crontab:

5 8    * * *   <user>   cd / && run-parts --report /etc/cron.daily

And put all your command scripts in this directory /etc/cron.daily. Make sure that you have added the execution rights for them.

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That should do it:

5 8 * * 6 <user> <command>

documentation (man 5 crontab):

              field          allowed values
              -----          --------------
              minute         0-59
              hour           0-23
              day of month   1-31
              month          1-12 (or names, see below)
              day of week    0-7 (0 or 7 is Sun, or use names)
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These answers are all correct, if you are unaware of how to use cron in the future, use one of many cron generators.

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5     8     *     *     6         *your command*
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Sat 8:05AM run find

# Minute   Hour   Day of Month       Month          Day of Week        Command    
# (0-59)  (0-23)     (1-31)    (1-12 or Jan-Dec)  (0-6 or Sun-Sat)                
    5       8          *             *                Sat              /usr/bin/find
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http://www.scrounge.org/linux/cron.html

5 8 * * 6 /usr/bin/foo

...to run every week on Saturday at 8:05 AM

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From extensive investigation of "man 5 crontab", it looks like this'll do the trick:

5 8 * * sat /usr/bin/man 5 crontab

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