[lug] Cron

[Michael J. Hammel]

Thus spoke winrip
> I'm wondering what is the correct pattern to use for cron.

man 5 crontab shows this:


The time and date fields are:

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)

A field may be an asterisk (*), which always stands for ``first-last''.

> minutes hours days months weekday    program
> 
> So that being said I added a script to run using crontab -e, and added;
> * 23 * * * /usr/local/blah blah blah
> 
> For some reason the script has been running every 45 seconds as near as I can

Your entry says to run this /usr/local/blah every minute from 11:00pm to
11:59pm.  Specify a specific minute you want it to run and it will only run
once during that hour.

-- 
Michael J. Hammel                               The Graphics Muse 
mjhammel at graphics-muse.org                      http://www.graphics-muse.com
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   I'm happy in my little world.  I would appreciate it if you would be happy
              in yours - way over there.  --  Michael J. Hammel