I’ve been cleaning out a bunch of super old notes this week, and am going to post them on my blog for future reference. In case I incur a head injury and need to memorize the crontab format again, here it is as ascii art:
minute (0-59),
| hour (0-23),
| | day of the month (1-31),
| | | month of the year (1-12),
| | | | day of the week (0-6 with 0=Sunday).
| | | | | command
0 2 0,4 /etc/cron.d/logchecker
You will probably see a few of these posts hit my blog in the days to come.