Capturing the output of a Vim commandEdit

This can be useful for working with command output that may be very verbose. For example, here we capture the output of the :au command to into the @a register:

:redir @a
:au
:redir END

Then in normal mode, "ap will paste the contents of the register.

Note that in scripts, it's useful to redirect to a variable (eg. => foo instead of @a).

Source

• http://vim.wikia.com/wiki/Capture_ex_command_output