Run a cron job every 10 minutes

Layout of crontab

# +---------------- minute (0 - 59)
# |  +------------- hour (0 - 23)
# |  |  +---------- day of month (1 - 31)
# |  |  |  +------- month (1 - 12)
# |  |  |  |  +---- day of week (0 - 6) (Sunday=0 or 7)
# |  |  |  |  |
  *  *  *  *  *  /path/to/command

To get cron to run a task every 10 minutes, some Unix's allow this:

*/10 * * * * /path/to/command