cgrep

#!/bin/bash

function usage()
{
   echo 'cgrep grep pattern from *.[chSs] or *.cpp or *.hpp or *.mk or [Mm]akefile'
}

if [ $# -eq 0 ]; then
    usage
    exit 1
fi
 
find . -type f -name "*.[chSs]" -o -name "*.cpp" -o -name "*.hpp" -o -name "*.mk" -o -name "[Mm]akefile" | xargs grep --color=auto -n "$1"