Bash/Sed implementation of PHP add_slashes function

This script will read lines from stdin end replace the ' with \' This is perfect for parsing text files and composing SQL queries.

#!/bin/bash

#filename: add_slashes.sh

read line
while [[ "$line" != "" ]]
do
echo "$line" | sed "s/'/\\\\'/g"
read line
done

Usage example: echo "Heherson's dog" | ./add_slashes.sh will produce "Heherson\'s dog"