Rename folders, files and their content at once.

rename.sh

#/usr/bin/env bash
#
# rename.sh
#
# Replace any occurency of "<source>" to "<target>" in a given <directory>.
# This apply to (sub)folders/files name and files content.
# Think about it like a refactoring function.
#
# Usage: rename.sh <source> <target> <directory>
#

set -eu

if [[ $# -lt 3 ]]; then
	echo "usage: $0 <source> <target> <directory>" 1>&2
	exit 1
fi

source=$1
target=$2
path=$3

# Changes text in files.
files=$(grep -rl "$source" "$path")
for i in $files; do
	sed -i '' "s/$source/$target/g" $i
done

# Change files name.
folders=$(find $path -name "*$source*" -type d)
for i in $folders; do
	name="${i/$source/$target}"
	mv $i $name
done

files=$(find $path -name "*$source*" -type f)
for i in $files; do
	name="${i/$source/$target}"
	mv $i $name
done