Rename files and folders to move from linux to windows cleaning specials characters

rename2dos

#!/bin/bash
#
# HOW TO INSTALL: move to /usr/bin and change permissions to execute

if [ "$1" == "--help" ]; then
	cat << EOF
Usage: rename2dos pathfolder counter

pathfolder  --> Initial folder
counter     --> Restart counter added in filename

Examples:
rename2dos ~/documents 0
rename2dos /home/user




EOF
	exit
fi

cd "$1"

if [ "$2" == "0" ]; then
	echo "0" > /tmp/rename2dos
fi

for file in *; do
	if [ -d "$file" ]; then
		rename2dos "$file"
		cleaned="${file//[ ()@$:]/_}"
		croped=${cleaned:0:60}
		counter="$(cat /tmp/rename2dos)"
		counter=$((counter+1))
		echo $counter > /tmp/rename2dos
		mv "$file" "$croped$counter"
	else
		cleaned="${file//[ ()@$:]/_}"
		croped=${cleaned:0:60}
		extension="${cleaned##*.}"
		counter="$(cat /tmp/rename2dos)"
		counter=$((counter+1))
		echo $counter > /tmp/rename2dos
		mv "$file" "$croped$counter.$extension"
	fi
done