grep, but only certain file extensions
I am working on writing some scripts to grep certain directories, but these directories contain all sorts of file types.
I want to grep just .h and .cpp for now, but maybe a few others in the future.
So far I have:
{ grep -r -i CP_Image ~/path1/;
grep -r -i CP_Image ~/path2/;
grep -r -i CP_Image ~/path3/;
grep -r -i CP_Image ~/path4/;
grep -r -i CP_Image ~/path5/; }
| mailx -s GREP [email protected]
Can anyone show me how I would add just the specific file extensions?
Answer
Just use the --include parameter, like this:
grep -inr --include \*.h --include \*.cpp CP_Image ~/path[12345] | mailx -s GREP [email protected]
that should do what you want.
To take the explanation from HoldOffHunger's answer below:
grep: command-r: recursively-i: ignore-case-n: each output line is preceded by its relative line number in the file--include \*.cpp: all *.cpp: C++ files (escape with \ just in case you have a directory with asterisks in the filenames)./: Start at current directory.