I'm a *nix user from a very long way back. And I do use CLI for most stuff. BUT when it comes to something that I only need to use/configure rarely, I find th

I'm a *nix user from a very long way back. And I do use CLI for most stuff. BUT when it comes to something that I only need to use/configure rarely, I find the man pages tedious to shift through, trying to find the exact combination of switches that do the desired job. What I would find very useful is a GUI (HTML5/JS based please) that finds the appropriate command (apropos?) presents the options, validates my selection, i.e. don't allow incompatible switches, warn about nasty effects, etc. THEN ... generates the appropriate command line command in a window. I can choose to execute it or to copy and paste into some script.