I have a large application and I need to find a list of files that do not contain an expression. I have been using The Silver Searcher but I am unsure how to get the opposite
Example
ag 'breadcrumbs' app/controllers
This gives a list of all the files and line number where I can find this expression in the controllers' directory
What I am trying to get is a list of all the files that do not have breadcrumbs
I am open to bash or shell scripts as well
Thanks for the help