google: search for patterns in all files

gistfile1.txt

#!/bin/bash

# A simple bash script that search all files in the current directory finding the words you put on input
# Searches all lines of the file
# Usage: google hello world

if [ -f .google ]
then
    rm -f .google
fi

WORDCOUNT=0
for word in "$@"
do
    ((WORDCOUNT++))
    rgrep --exclude-dir=packs $word * | cut -d ':' -f 1 | sort | uniq >> .google
done

if [ -f .google ]
then
    sort .google | uniq --count | while read result
    do
        read -a r <<<"$result"
        if [ ${r[0]} -eq $WORDCOUNT ]
        then
            echo ${r[1]}
        fi
    done
    rm -f .google
fi