> For the complete documentation index, see [llms.txt](https://alicenab.gitbook.io/linux/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://alicenab.gitbook.io/linux/redhat/tasks/cronjob.md).

# Cronjob

Schedule commands to run on a repeating schedule using user's crontab file.

Cronjobların set olunması üçün `cronie` paketinə ehtiyac var. Həmin paketi tapmaq üçün:

```
sudo yum whatprovides cronie
sudo yum install cronie-noanacron.x86_64 -y
```

check if crond service is enabled:

```
systemctl enable crond.service --now
systemctl status crond.service
```

display helpful info about crontab:

```
cat /etc/crontab
```

***

## Task 1:

Set cronjob for user natasha to do `/bin/echo`hiya at 14:23.

Solution:

```
crontab -eu natasha
23 14 * * * /bin/echo hiya

# test if cronjob is created
crontab -lu natasha
```

## Task 2:

The user natasha must configure a cron job that runs daily at 14:23 local time and also the same cron job will run after every 2 minutes and executes.

Solution:

```
crontab -eu natasha
23 14 * * * /bin/echo hello # add the line to the file
*/2 * * * * /bin/echo hello # every 2 minutes
```

```
systemctl restart crond.service
systemctl enable crond.service
crontab -lu natasha
tail -f /var/log/cron
```

## Task 3:

Configure a task: plan to run echo "file" command at 14:23 every day.

Solution:

```
crontab -eu natasha
23 14 * * * /bin/echo "file"
crontab -lu natasha
```