crontab for individual users
I used to use root's `crontab(1)' even for things specific to my regular user. I didn't know that each user can have their own.
Comparing to the root's `/etc/crontab' I don't have to specify as a "who" the command should be run.
crontab -e
,----
| #minute hour mday month wday command
| 0 * * * * echo "do stuff every hour"
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