Don't get yourself too bogged down with the command line.
Just try to get an overall “feel” for it, with some of the more common commands.
15 are listed here
Short Guide I
Short Guide II
Plus two “cheat sheets”
for you to print and keep handy for emergencies!
Study these in the meantime and when the need arises, hopefully you will be in a better position and feel more confident in using the CL.
Here's one for you, installing some new software
for LibreOffice Writer….Microsoft TrueType fonts
Open Terminal and using Copy & Paste
to avoid typos:
sudo apt-get update && sudo apt-get install ttf-mscorefonts-installer
At some point you will need to answer Yes by typing y
and then pressing Enter.
You will also need to agree to the MS EULA:
This is done by pressing the Tab key
(above Caps Lock), then pressing Left Arrow key
(to highlight Yes) and finally press the Enter key
You can then open LO Writer and select fonts such as Times New Roman etc which were not available previously.
Here's another one:
You will now see a list of all the icons/programs on your Mint Desktop.