I need a sed command that will search for a word X in all of the files
in a directory and subdirectory and replace them with Y. So the
command needs to look into each subdirectory and apply the
search/replace to all of the files it finds.

---

Request for Question Clarification by efn-ga on 06 Mar 2005 20:42 PST

sed doesn't know how to find its way through directories.  You have to
use some other technology for that.

That said, does this FAQ section answer your question satisfactorily?

http://www.student.northpark.edu/pemente/sed/sedfaq4.html#s4.41

I take that you are using Unix, but if you can go either way, I
believe that the tool that you are looking for is:
http://www.orbit.org/replace/, and it does it all, regular
expressions, multi search and replacements, command line and GUI
based, and so forth.

  Good luck.