You put that in a boot script. On most distros, editing /etc/rc.local is easiest.
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I created this /etc/init.d/mylocalstuff (and made it executable with chmod +x)
Code:#! /bin/sh ### BEGIN INIT INFO # Provides: mylocalstuff # Required-Start: $syslog # Required-Stop: $syslog # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: execute my local stuff... # Description: see short description ### END INIT INFO . /etc/rc.status # Shell functions sourced from /etc/rc.status: # rc_check check and set local and overall rc status # rc_status check and set local and overall rc status # rc_status -v ditto but be verbose in local rc status # rc_status -v -r ditto and clear the local rc status # rc_failed set local and overall rc status to failed # rc_reset clear local rc status (overall remains) # rc_exit exit appropriate to overall rc status # First reset status of this service rc_reset case "$1" in start) echo -n "Starting some local stuff" echo "low" > /sys/class/drm/card0/device/power_profile echo "powersave" > /sys/module/pcie_aspm/parameters/policy # Remember status and be verbose rc_status -v ;; stop) echo -n "Shutting some local stuff" echo "default" > /sys/class/drm/card0/device/power_profile echo "default" > /sys/module/pcie_aspm/parameters/policy # Remember status and be verbose rc_status -v ;; try-restart) ## Stop the service and if this succeeds (i.e. the ## service was running before), start it again. $0 status >/dev/null && $0 restart # Remember status and be quiet rc_status ;; restart) ## Stop the service and regardless of whether it was ## running or not, start it again. $0 stop $0 start # Remember status and be quiet rc_status ;; force-reload|reload) ## Signal the daemon to reload its config. Most daemons ## do this on signal 1 (SIGHUP). echo -n "Reload some local stuff" rc_status -v ;; status) echo -n "Checking for some local stuff" RADEON_STATUS=`cat /sys/class/drm/card0/device/power_profile` test "low" = "$RADEON_STATUS" rc_status -v ;; *) echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload}" exit 1 ;; esac rc_exit
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