How to do a recursive find/replace of a string with awk or sed?

Question

How do I find and replace every occurrence of:

subdomainA.example.com

with

subdomainB.example.com

in eve

Answer 1

This one is compatible with git repositories, and a bit simpler:

Linux:

git grep -l 'original_text' | xargs sed -i 's/original_text/new_text/g'

Mac:

git grep -l 'original_text' | xargs sed -i '' -e 's/original_text/new_text/g'

(Thanks to http://blog.jasonmeridth.com/posts/use-git-grep-to-replace-strings-in-files-in-your-git-repository/)