Merge branch 'master' of github.com:thomasabishop/computer_science

Linux/Procedural/Create_timed_systemd_job.md

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+---
+categories:
+  - Linux
+tags: [systems-programming, systemd]
+---
+
+# Create timed `systemd` job
+
+To use systemd to run a bash script at 11am each day, you can create a new systemd service file. Here is an example of what the service file might look like:
+
+```
+[Unit]
+Description=Run My Script
+
+[Service]
+Type=simple
+ExecStart=/bin/bash /path/to/my_script.sh
+
+[Install]
+WantedBy=default.target
+```
+
+Save this file to `/etc/systemd/system/my_script.service`.
+
+Then you can use systemd to schedule the script to run at 11am each day by creating a new systemd timer file. Here is an example of what the timer file might look like:
+
+```
+[Unit]
+Description=Run My Script Daily at 11am
+
+[Timer]
+OnCalendar=*-*-* 11:00:00
+
+[Install]
+WantedBy=timers.target
+```
+
+Save this file to `/etc/systemd/system/my_script.timer`
+
+Then you can enable and start the timer with the following commands:
+
+```
+sudo systemctl enable my_script.timer
+sudo systemctl start my_script.timer
+```
+
+This will run the script at 11am everyday
+You can check the status of the timer with the following command:
+
+```
+sudo systemctl status my_script.timer
+```