<blockquote>
<p>running stuff in the background at a specified time is awesome</p>
</blockquote>
<p>I forget to backup my files and so i use cron to do it for me. </p>
<p>Here is a basic rundown- </p>
<ul>
<li>crontab is the tab of all cronjobs</li>
<li>run <code>crontab -e</code> it will ask for setup, use your favorite editor</li>
</ul>
<pre><code><span class="hljs-keyword">export</span> EDITOR=nvim
</code></pre><p>now run <code>crontab -e</code> again and you should be able to access the file</p>
<pre><code># Add <span class="hljs-built_in">this</span> line to your crontab file to run the backup every day at <span class="hljs-number">2</span> AM
<span class="hljs-number">0</span> <span class="hljs-number">2</span> * * * rsync -ah --info=progress2 /path/to/source /path/to/destination
</code></pre><p>those asterics are wildcards! It means run it everytime </p>
<p>use this command format examples for cronjobs</p>
<div class="hn-table">
<table>
<thead>
<tr>
<td>m</td><td>h</td><td>dom</td><td>mon</td><td>dow</td><td>command</td></tr>
</thead>
<tbody>
<tr>
<td>minutes</td><td>hours</td><td>day</td><td>month</td><td>day of the week</td><td>command</td></tr>
<tr>
<td>30</td><td>4</td><td>*</td><td>*</td><td>6</td><td>4:30 every Saturday</td></tr>
<tr>
<td>15</td><td>14</td><td>*</td><td>*</td><td>*</td><td>2:15 every day</td></tr>
<tr>
<td>0</td><td>0</td><td>*</td><td>*</td><td>0</td><td>12:00 AM every Sunday</td></tr>
<tr>
<td>30</td><td>8</td><td>*</td><td>*</td><td>1-5</td><td>8:30 AM every weekday</td></tr>
<tr>
<td>45</td><td>3</td><td>10</td><td>*</td><td>*</td><td>3:45 AM on the 10th</td></tr>
<tr>
<td>59</td><td>23</td><td>31</td><td>12</td><td>*</td><td>11:59 PM on December 31st</td></tr>
</tbody>
</table>
</div>

> running stuff in the background at a specified time is awesome

I forget to backup my files and so i use cron to do it for me. 

Here is a basic rundown- 
- crontab is the tab of all cronjobs
- run `crontab -e` it will ask for setup, use your favorite editor

```
export EDITOR=nvim
```

now run `crontab -e` again and you should be able to access the file
```
# Add this line to your crontab file to run the backup every day at 2 AM
0 2 * * * rsync -ah --info=progress2 /path/to/source /path/to/destination
```
those asterics are wildcards! It means run it everytime 

use this command format examples for cronjobs

|m        | h        | dom      | mon      | dow      | command  |
|---------|----------|----------|----------|----------|----------|
| minutes | hours    | day      | month    | day of the week | command  |
|30 | 4  | *   | *   | 6   | 4:30 every Saturday               |
|15 | 14 | *   | *   | *   | 2:15 every day                     |
|0  | 0  | *   | *   | 0   | 12:00 AM every Sunday             |
|30 | 8  | *   | *   | 1-5 | 8:30 AM every weekday             |
|45 | 3  | 10  | *   | *   | 3:45 AM on the 10th                |
|59 | 23 | 31  | 12  | *   | 11:59 PM on December 31st         |



m	h	dom	mon	dow	command
minutes	hours	day	month	day of the week	command
30	4	*	*	6	4:30 every Saturday
15	14	*	*	*	2:15 every day
0	0	*	*	0	12:00 AM every Sunday
30	8	*	*	1-5	8:30 AM every weekday
45	3	10	*	*	3:45 AM on the 10th
59	23	31	12	*	11:59 PM on December 31st

Cronjobs