[CodeToad]

“Command line”

Command lines are for idiot geeks that can’t write an effective user interface and think they’re being clever by memorizing arcane command line codes.

[ShadowAce]

Command lines for for smarter geeks who need to manage 500 servers and perform the same action on all of them.

I can do that much faster in the CLI than you can on the GUI.

[TChris]

Command lines are for idiot geeks that can’t write an effective user interface and think they’re being clever by memorizing arcane command line codes.

Or, they're the pure, direct interface into the O/S and used heavily by actual system administrators with enough experience to know that there is no GUI that can effectively cover the millions of variations on commands needed to do everyone's job effectively.

Maybe that's it. :) ...or maybe you're right and tens of thousands of sysads really are idiots and have been doing it wrong all these decades.