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

To cut down on files to recursively sed through, you could grep for your string instance:

grep -rl  /path/to/folder | xargs sed -i s^^^g

If you run man grep you'll notice you can also define an --exlude-dir="*.git" flag if you want to omit searching through .git directories, avoiding git index issues as others have politely pointed out.

Leading you to:

grep -rl --exclude-dir="*.git"  /path/to/folder | xargs sed -i s^^^g