Re: [CentOS] Running a command at startup

On Wed, Dec 12, 2018 at 07:04:12PM -0500, Robert Moskowitz wrote:

On a support forum, I was told that to turn off my board's blue led run:

echo none | sudo tee /sys/class/leds/blue:heartbeat/trigger

Well, this does not survive a system reboot.  So I was told:

Add the off bit to

/etc/rc.local

Add it above "exit 0"

So of course, CentOS is past using rc.local and recommends:

# It is highly advisable to create own systemd services or udev rules # to run scripts during boot instead of using this fi

So can someone point me to how to make this into a simple systemd service?

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/htm...

You probably want something that is Type=oneshot.