How do I use grep to search the current directory for all files having the a string "hello" yet display only .h and .cc files?
grep -r --include=*.{cc,h} "hello" .
This reads: search recursively (in all sub directories also) for all .cc OR .h files that contain "hello" at this .
(current) directory
From another stackoverflow question
You can pass in wildcards in instead of specifying file names or using stdin.
grep hello *.h *.cc
find . -name \*.cc -print0 -or -name \*.h -print0 | xargs -0 grep "hello"
.
Check the manual pages for find
and xargs
for details.