In addition to what this user has said - vi/emacs are the only editors generally installed by default on servers and in Linux distributions, with vi being the only one that is guaranteed to be installed. Learning and mastering vi will be very productive in that you can fix things on the server rather than having to taking the time to wait for IDEs to load .. and that can take a while if you are working on a big project.
In addition to what this user has said - vi/emacs are the only editors generally installed by default on servers and in Linux distributions, with vi being the only one that is guaranteed to be installed. Learning and mastering vi will be very productive in that you can fix things on the server rather than having to taking the time to wait for IDEs to load .. and that can take a while if you are working on a big project.