Run a command every week with Cron?

Question

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

Answer 1

That should do it:

5 8 * * 6 <user> <command>

or for readability

5 8 * * Sat <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)

Answer 2

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

Answer 3

These answers are all correct, if you are unaware of how to use cron in the future, use one of many cron generators:

• http://www.cronmaker.com/
• http://www.crontab-generator.org/

Answer 4

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

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

Answer 5

5     8     *     *     6         *your command*

Answer 6

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.

Answer 7

http://www.scrounge.org/linux/cron.html

5 8 * * 6 /usr/bin/foo

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