Splitting screen with VIM

Vim can edit multiple files in a multi-split-screen environment. You can type :help usr_08.txt for detail :

To split the screen display between different files, type at the vi command promt:

1. Splits the window horizontally

:split another-file or at a shell prompt $vi -o file1 file2

2. Splits the window vertically

:vsplit another-file Or at a shell prompt $vi -O file1 file2