File location
/etc/systemd/system/
Simple Unit Example
Base service
Let file name be: my-script.service
[Unit]
Description=My Script
After=network.target
[Service]
ExecStart=/path/to/your/script.sh
Restart=always
User=username
Group=groupname
[Install]
WantedBy=multi-user.target
Then run
sudo systemctl daemon-reload
sudo systemctl enable --now my-script
sudo systemctl status my-scriptSimple Timer associated to service
Let file name be: my-script.timer