To run from a terminal you can do

linuxcnc path to the configuration ini file

linuxcnc /home/john/linuxcnc/configs/flex_examples/actions.ini
linuxcnc /home/john/linuxcnc/configs/flex_examples/status.ini
linuxcnc /home/john/linuxcnc/configs/flex_examples/xyz.ini
linuxcnc /home/john/linuxcnc/configs/flex_examples/xyzh.ini

linuxcnc /home/john/linuxcnc/configs/flex_examples/tom.ini