# Cron

### Crontabs

A crontab is a file that's utilised by the cron process to execute each line of instructions.\
Crontabs need 6 values in-order to work:

| Value | Description                                     |
| ----- | ----------------------------------------------- |
| MIN   | What minute to execute at                       |
| HOUR  | What hour to execute at                         |
| DOM   | What **D**ay **O**f the **M**onth to execute at |
| MON   | What **M**onth **O**f the **Y**ear to execute a |
| DOW   | What **D**ay **O**f the **W**eek to execute at  |
| CMD   | The actual command that'll get executed         |
| \*    | NULL                                            |

<figure><img src="/files/VZLnC6t7v2cPpASAo70b" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/KfAKOLvbwtNun78s3LrZ" alt=""><figcaption></figcaption></figure>

Once you're done, click generate and paste the output into your crontab editor

<figure><img src="/files/Ja0LnaCK4cQx2j8D9sdi" alt=""><figcaption></figcaption></figure>

Press `Ctrl + X` to save on Nano, or `:wq` on Vim. That's it!\
If you want to remove your saved crontabs, you can run `crontab -r`.


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