Get Git
Get Arduino IDE
Get Ruby
Get GRBL
Get Gctrl
Get Processing
Move RXTX files to make Arduino boards work with Processing
Modify Gctrl code for Easier Connection with Arduino on Linux
Modify GRBL Files for enabling GRBL flashing to Arduino board on Linux
Flashing GRBL to the Arduino
Run Gctrl
Determine GRBL Configuration Changes Required
How to Modify GRBL Settings