neil@neil-laptop:~$ sudo gcdump -v -f ./ring.gcode
Serial port:	/dev/ttyUSB0
Line speed:	19200
Gcode file:	./ring.gcode
G21 ;metric is good!
G90 ;absolute positioning
T0; select new extruder
G92 E0 ;zero the extruded length
G92 X0
G92 Y0
G1 X10.0 Y0.0 F1500.0
G92 Z0
G92 E0 ;zero the extruded length
G1 F1500.0;
G1 Z1.0 F70
M109 S186.0 ;set temperature and wait
G1 F15000.0;

Got EOF!
Output buffers flushed.
neil@neil-laptop:~$