You can use any executable program for [DISPLAY]DISPLAY=
LinuxCNC will quit when the named program exits.
Example for a file named nogui.sh in config directory:
$ cat nogui.sh
#!/bin/bash
function bye () {
echo bye
exit 0
}
trap bye SIGTERM SIGHUP
tail -f /dev/null &
wait $!
$ chmod 755 nogui.sh
Ini file excerpts:
[DISPLAY]
DISPLAY = ./nogui.sh
...
[HAL]
HALUI = halui
...
You can stop LinuxCNC by sending a hangup signal to nogui.sh:
$ pkill -HUP nogui.sh
You can also start independent programs (with a delay)
from an ini file:
[APPLICATIONS]
DELAY = number_of_seconds_to_wait
APP = name_of_program_in_path
Ref:
http://linuxcnc.org/docs/2.7/html/config/ini-config.html#_applications_section
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