#!/bin/bash

if [ $# = 0 ]; then
	echo "Rename file(s) from one codepage to another"
	echo "Usage: mvconv [file{ file{ file{ ...}}}] [from codepage] [to codepage]"
	exit
fi

n=0
while [ "$1" != "" ]; do
	if [ -n "$var" ]; then
		eval "$var=$1"
		var=
		continue
	fi
	case $1 in
		[fF] | [fF][rR][oO][mM])
			var=fromenc
			;;
		[tT] | [tT][oO])
			var=toenc
			;;
		*)
			files[$n]="$1"
			;;
	esac
	n=$(($n+1))
	shift
done

iconv="iconv -c"
[ -n "$fromenc" ] && iconv="$iconv -f $fromenc"
[ -n "$toenc" ] && iconv="$iconv -t $toenc"

while [ $n -gt 0 ]; do
	n=$(($n-1))
	x=${files[$n]}
	y=`echo $x | $iconv 2>/dev/null`
	if [ "$x" != "$y" ]; then
		echo "Renaming $x to $y ..."
		mv "$x" "$y"
	fi
done