^ Suppose it is that one really does not have the time to play around with the GUIs, unless a GUI really takes the strain from the brain, which the ISO FIle Editor does.
As for abbreviations, those universally known in the Linux world are to the best of my knowledge allowed. Francois himself has seen fit to provide RTFM together with its long form: 'Read the Fine Manual".
Linux porteus 4.4.0-porteus #3 SMP PREEMPT Sat Jan 23 07:01:55 UTC 2016 i686 AMD Sempron(tm) 140 Processor AuthenticAMD GNU/Linux
NVIDIA Corporation C61 [GeForce 6150SE nForce 430] (rev a2) MemTotal: 901760 kB MemFree: 66752 kB