A bash script for editing multiple file/dir names using a text editor (e.g. vim). Usage: edit_filename.sh file1 file2 ...

edit_filename.sh

#!/usr/bin/env bash
tmpfile0="$(mktemp -t ename0_XXXXXXXX)"
tmpfile1="$(mktemp -t ename1_XXXXXXXX)"
myeditor=vim

for i in "$@"; do
	if [ ! -f "$i" ]; then
		echo "file $i does not exist ... exit ... "
		exit 1
	fi
	echo "$i" >> "$tmpfile0"
	echo "$i" >> "$tmpfile1"
done

md5sum_orig="$(md5sum "$tmpfile1" | awk '{print $1}')"
$myeditor "$tmpfile1"
md5sum_new="$(md5sum "$tmpfile1" | awk '{print $1}')"
if [ "$md5sum_new" == "$md5sum_orig" ]; then
	echo 'filenames unchanged, exit ... '
	exit 0
fi

n=1
for i in "$@"; do
	newname_i="$(sed -n "${n}p" "$tmpfile1")"
	if [ "$newname_i" == "${i}" ] || ! echo "$newname_i" | sed 's/\s*//g' | grep -q '.'; then
		echo -e "\033[33;5mUNCHANGED\033[33;0m: ${i}"
		echo
		let n+=1
		continue
	fi
	echo -e "\033[33;1mRENAMING\033[33;0m: ${i} "
	echo "    ===>> ${newname_i}"
	echo
	mv "${i}" "${newname_i}"
	let n+=1
done


if [ -f "$tmpfile0" ]; then
	rm "$tmpfile0"
fi
if [ -f "$tmpfile1" ]; then
	rm "$tmpfile1"
fi