emacs compilation mode -> quickfix
:cexpr system('go build -v 2>&1')
:copen, :cclose, :cnext, :cprev
grep
same directory
:grep hello *
opens in quick fix, same as :cexpr
:grep -r hello * : recursive directory
:lgrep -r hello % : current file
use vim binding in command line mode
the command line mode can’t use vim keybindings
<C-f>