Run multi-occur on project/dired files
occur-mode is one of the awesome modes that come builtin with Emacs.
Sometimes I just want to run multi-occur on all (or a subdirectory) of a project I'm working on.
Used with keyboard macros it makes it a snap to perform modifications on many buffers at once.
It's available on melpa:
M-x package-install noccur
The way I use it is the following:
M-x noccur-project RET foo RET The occur buffer's content can then be edited with occur-edit-mode (bound to e).
To save changes in all modified buffer and go back to occur-mode press C-c C-c.