Yet Another Alternative to 'grep find' using mdfind(a.k.a. Spotlight) on Mac OS X

g

#!/bin/sh
# 
# g - Yet Another Alternative to 'grep find' using mdfind(a.k.a. Spotlight) on Mac OS X 
#
# usage:
#    $g hoge
#    $g hoge dir

USAGE="usage:\n\
      \$g hoge\n\
      \$g hoge dir"

if [ $# -lt 1 ] || [ $# -gt 2 ]; then
    echo $USAGE
    exit 0
fi

WORD=$1
if [ $# -lt 2 ]; then
    DIR="."
else
    DIR=$2
fi

mdfind -0 -onlyin $DIR $WORD | xargs -0 grep -Hin $WORD

exit 0