How to do massive search and replace in emacs?

Question

Possible Duplicate:
Using Emacs to recursively find and replace in text files not already open

Duplicate: using-emacs-to-recursively-find-and-replace-in-text-files-not-already-open

I need to to regexp search and replace on a list of files. Is there an emacs command (command combo) for that? Or maybe you have a better way to do c++ refactoring on linux?

Answer 1

Have you looked into XRefactory?

Answer 2

You can mark files in dired or ibuffer and query-replace-regexp on them. Otherwise why not use the shell with some find and sed magic, a la:

for f in $(find . -name "*.cpp"); do
    mv $f $f.bak
    sed -e "s/old/new/g" $f.bak > $f
done