While all answers are more or less the same, I don't find them readable with multiple name and Boolean operators in-between.
I think this may be more elegant solution:
$ find . -type f | grep -E "\.java$|\.cpp$|\.c$"
Let's break this up
find . finds all files recursively in current path (change to some other path if you need)
-type fnarrows the search only to files (not too much of a speed gain, but still...)
| grep -E I used this to get grep recognize or (
|) operator in Mac OS X which uses FreeBSD grep, GNU grep does not need that (check in your
"\.java$|\.cpp$|\.c$" regular expression which includes files whose name ends with
.c (add ones you need)
You can then pipe the resulting list for further processing, e.g.
$ find . -type f | grep -E "\.java$|\.cpp$|\.c$" | xargs sed -i '' $'/s/\r$//'
This example removes DOS/Windows
CRLF line ending for OS X/Linux
LF (this is also OS X
sed syntax, check for your version specifics).