Systemd

Service files

service file man page

Next section says where to put the file.

After adding, run:

# systemctl enable "unitname"
# systemctl start "unitname"

Example/template:

[Unit]
 Description={{ description }}
 Wants=network-online.target
 After=network-online.target

 [Service]
 Type=simple
 ExecStart={{ command }}
 Restart=on-failure  (or "always", "on-success", ...)
 # Run as:
 User={{ user }}
 Group={{ groupname }}
 # SupplementaryGroups=name1 name2 name3
 WorkingDirectory={{ directory }}

 [Install]
 WantedBy=multi-user.target

Unit search paths

https://www.freedesktop.org/software/systemd/man/systemd.unit.html

System Unit Search Path:

/etc/systemd/system.control/*
/run/systemd/system.control/*
/run/systemd/transient/*
/run/systemd/generator.early/*
/etc/systemd/system/*
/etc/systemd/systemd.attached/*
/run/systemd/system/*
/run/systemd/systemd.attached/*
/run/systemd/generator/*
…
/usr/lib/systemd/system/*
/run/systemd/generator.late/*

User Unit Search Path:

~/.config/systemd/user.control/*
$XDG_RUNTIME_DIR/systemd/user.control/*
$XDG_RUNTIME_DIR/systemd/transient/*
$XDG_RUNTIME_DIR/systemd/generator.early/*
~/.config/systemd/user/*
/etc/systemd/user/*
$XDG_RUNTIME_DIR/systemd/user/*
/run/systemd/user/*
$XDG_RUNTIME_DIR/systemd/generator/*
~/.local/share/systemd/user/*
…
/usr/lib/systemd/user/*
$XDG_RUNTIME_DIR/systemd/generator.late/*