VIM split windows and macros quick reference

ex commands for split windows

• :sp filename create a new split with filename
• :vsp filename create a new vertical split with filename
• :new create a new split with an empty buffer
  
• :vne create a new vertical split with an empty buffer
  
• :wa save all open files
• :wqa save and quit all open files

Ctrl-W related commands for split windows

• C-w h moves split to the left of current split
• C-w j moves split below the current split
• C-w k moves split above the current split
• C-w l moves split to the right of the current split
• C-w + increase the current split by one line (or, prefix this command with a number to do that many line increases)
• C-w - decrease the current split by one line (same addendum as above)
• C-w < decrease the current split width
• C-w > increase the current split width
  
• C-w _ Maximize the current split

Split windows in the .vimrc (taken from this page ... also see the same author's excellent Efficient Editing with VIM )

• map <C-J> <C-W>j<C-W>_ " Hit C-j to move the current split down and maximize it
• map <C-K> <C-W>k<C-W>_ " Hit C-k to move the current split up and maximize it
• set wmh = 0 " allow splits with 0 lines open

Macros

• q<register> start recording and save the macro in the specified register (use a lowercase letter, for example)
• q (again) end recording
• @<register> playback the macro