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Note: For scrolling in vim editor, you can utilize the arrow keys too, but hjkl keys usage will make you scroll faster in the vim editor.
You can create a couple of windows using Control-w + s and Control-w + v , then use your trusty hjkl to move around between your windows, Control-w + h moves a window left, Control-w + j moves a window down, etcetera. So it's not just that they are an improvement over the arrow keys.
The way to scroll using the arrow keys in a terminal emulator is to hold down the shift key. This is because a terminal emulator send all keypresses to the application running in the terminal; holding shift down bypasses that. This can also be used with other keys like copy and paste.
To map a sequence of keys to execute another sequence of keys, use the ':map' command. For example, the following command maps the <F2> key to display the current date and time. The ':map' command creates a key map that works in normal, visual, select and operator pending modes.
If you don't know the internal code for a certain key, type CtrlK and then the function key. For example, this sequence followed by the up arrow key will output:
<Up>
You can learn more about this command in the documentation for both insert
and command mode. The specific ways to map a special key are given in the
documentation with the tag :map-special-keys. Additionally, you can find a
handy table with :h key-notation.
Quite literal:
<Left>
<Right>
<Up>
<Down>
As noted in the comments, find this and more in this tutorial.
And
<C-Right>
for Control key and Right.
For example, I used the following mappings (in my .vimrc) to cycle through my open buffers:
nnoremap <silent> <C-Right> :bn<CR>
nnoremap <silent> <C-Left> :bp<CR>
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