title: Search & replace using quickfix list in Vim
body: <p>So far I always used EasyGrep for replacing text in multiple files. Unfortunately it is quite slow when a project gets bigger. One thing that seems to be amazingly fast is Ggrep of fugitive.vim that only search my version controlled files. All results are also stored in the quickfix list.</p>
  
  <p>How can I use the results of Ggrep for doing a simple replace over all those found files? Is it somehow possible to use <code>%s/foo/bar/cg</code> on all files in the quickfix list or are there any better ways?</p>