====== Ubuntu - Services - Scripts ======

===== Using systemd =====

Example systemd script written in **/lib/systemd/system/service_name.service**:

<code bash>
systemctl cat service_name.service
</code>

returns:

<code bash>
[Unit]
Description=Job that runs the service_name daemon
Documentation=man:service_name(1)
[Service]
Type=forking
Environment=statedir=/var/cache/service_name
ExecStartPre=/usr/bin/mkdir -p ${statedir}
ExecStart=/usr/bin/service_name-daemon --arg1 "hello world" --statedir ${statedir}
[Install]
WantedBy=multi-user.target
</code>

----

===== Using Upstart =====

Example upstart script written in **/etc/init/service_name.conf**:

<code bash>
description "Job that runs the service_name daemon"
start on runlevel [2345]
stop on runlevel [016]
env statedir=/var/cache/service_name
pre-start exec mkdir -p $statedir
exec /usr/bin/service_name-daemon --arg1 "hello world" --statedir $statedir
</code>