Quick script that ties together find and grep so you can search through file contents. Uses Python because I was already familiar with argparse.Much of the length and inelegance of the script is because I wanted to preserve colored output through the pipe.

filegrep.py

#!/usr/bin/env python

import argparse, subprocess

parser = argparse.ArgumentParser()
parser.add_argument("file_glob", help="a quoted string to use when globbing for files; example: \"*.py\"")
parser.add_argument("search_string", help="the string to search for in the files")
args = parser.parse_args()

find = subprocess.Popen(["find", ".", "-type", "f", "-name", args.file_glob, "-print0"], stdout=subprocess.PIPE)
grep = subprocess.Popen(["xargs", "-0", "grep", "-H", "-n", "--color", args.search_string], stdin=find.stdout)

# Use communicate() instead of sys.stdout.write() or the print statement, since
# print tacks on a newline at the end, and write() fails for some reason
grep.communicate()[0]