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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7 Answers

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)

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

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

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

5 8 * * 6 *your command*

5 8 * * 6 /usr/bin/foo

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

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.