In Vim's terminology, a window is a viewport onto a buffer. We can open multiple windows, each containing the same buffer, or we can load different buffers into each window.

<C-w>s

divide window horizontally, which create two windows of equal height.

<C-w>v

split window vertically, which produce two windows of equal width.

Note: you can repeat these commands as often as you like, splitting your workspace again and again in a process that resembles cell division.

Note: Each time we use the <C-w>s and <C-w>v commands, the two resulting split windows will contain the same buffer as the original window was divided.

:edit

load another buffer into the active window.

<C-w>s :edit {filename} === :split {filename}

divide our workspace and then open another buffer in one split window while keeping the existing buffer visible in the other split.

Changing the Focus Between Windows

In fact, <C-w><C-w> === <C-w>w, you can press the <Ctrl> key and hold it while typing ww(or wj or any others from the table) to change the active window. It's easier to do that.

:close

close the active window.

:only

close all windows except the active one.

Resizing and Rearranging Windows

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