Questions tagged [user-interface]

Commands like git, hg, and apt-get all have sub-commands (is there a better name?), and they are all case-sensitive: hg log # not hg Log git status # not git Status sudo apt-get install nano # not sudo apt-get…

I'd like to know the difference(s) between the text mode that one gets, for example, by opening "terminal" in GNOME, and the text mode that one interacts with in a server linux distribution which doesn't have a GUI. I know that the program named…

I am writing script, basically it's a calculator for very specific industrial procedure. I want to block alphanumeric input and allow only numerical input. How I do that???? I have used variable for user input but I want to restrict user to…