(m/g)vim windowing

vim-windowing.md

(M/G)VIM

Open N windows split horizontally / vertically

-o[N]                Open N windows (default: one for each file)
-O[N]                Like -o but split vertically

you can also specify files:

vim -o3 file1.txt file2.txt file3.txt

And it will open each in 3 separate horizontally split windows

Open all files matching file* in different tabs

mvim -p file*

split window horizontally and open filename

:sp filename (horizontal)

split window vertically and open filename

:vsp filename