If there is an entry in crontab with the following syntax:
* * * * * /usr/bin/program
How often would this be run? How would it initially get launched?
Your cron entry will execute every single minute of every hour of every single day of every single month of every single year
A search for crontab syntax will give you man indepth explanations.
I find it handy to note the ordering in a comment at the top as a reminder.
man crontab
, scroll to the bottom, see See Also "crontab(5)", man man
the sections are listed on the second (25-line) screenful. "5 File formats and conventions". My comment was not intended as an "oh should already know this", but as "here's some useful information".
Oct 1, 2010 at 1:46
man crontab
will do. The crontab manpage is not always in section 5. I'm typing this from Slackware Linux 13.1 and it's in section 1 here.