reverse the filename for the current dir

reverser.sh

#!/bin/bash

if [ "$1" != "" ]
then
	dir=$1
else
	dir=$GIST_PWD
fi
cd "$dir"

function reverseIt
{
	file="$1"
	if [ -d "$file" ]; then			# check if it is a dir
		echo -n "$(rev <<< "${file}")"
	elif [[ $file == *.* ]]; then	# check if there is a . in the file
		echo -n "$(rev <<< "${file%.*}").${file##*.}"
	else
		echo -n "$(rev <<< "${file}")"
	fi
}

for file in *
do
	reverser=$(reverseIt "$file")
	echo "file: $file	-> $reverser"
done

read -p "Is this OK? [y/N] " preview_ok
if [ "$preview_ok" == "y" ] || [ "$preview_ok" == "Y" ]
then
	for file in *
	do
		reverser=$(reverseIt "$file")
		mv "$file" "$reverser"
	done
fi