Thanks, I will study this... On 12/13/18 2:38 PM, Kenneth Porter wrote: > --On Wednesday, December 12, 2018 7:04 PM -0500 Robert Moskowitz > <rgm at htt-consult.com> wrote: > >> So can someone point me to how to make this into a simple systemd >> service? > > I'd first create a utility script (untried code!) like this: > > /usr/local/sbin/BlueLedFunction.sh > > #!/bin/sh > echo "$1" > /sys/class/leds/blue\:heartbeat/trigger > > Then I'd create /etc/systemd/system/BlueLedOff.service with > appropriate sections to invoke that script with "none" as an argument > and to run in your desired runlevel. (Take a look at the examples in > /lib/systemd/system.) Then issue this to have it run at startup: > > systemctl enable BlueLedOff > > Note that custom unit files go in /etc/systemd/system to avoid having > them overwritten by distro updates. You can customize existing unit > files by either copying them from /lib/systemd to /etc/systemd or you > can override single settings with specially-named subdirectories in > /etc/systemd/system. See the unit file documentation for details. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos >