findreplace.sh

#!/bin/bash
#By Nate Flink

if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ]; then
  echo "Usage: ./$0 [path to files] [find string] [replace string]"
  exit 1
fi

DIRPATH=$1
FIND=$2
REPLACE=$3


if [ ! -d "${DIRPATH}" ];
then
echo "Error: ${DIRPATH} doesn't exist"
exit 2
fi

#sed -i "" is needed by the osx version of sed (instead of sed -i)
find ${DIRPATH} -type f | xargs sed -i "" "s|${FIND}|${REPLACE}|g" 
exit 0