#!/bin/bash -e

if [ $# -ne 2 ]; then
	echo >/dev/stderr "ERROR: Incorrect number of arguments."
	cat <<EOD

Usage:
	./`basename "$0"` LIST NAME

Arguments:
	LIST	File containing names of files to rename.
	NAME	Beginning of pattern to rename files to.

EOD
	exit -1
fi


if [ "$1" == "-" ]; then
	FILELIST="/dev/stdin"
else
	FILELIST="$1"
	if [ ! -f "$FILELIST" ]; then
		echo >/dev/stderr "ERROR: Could not read file list '$FILELIST'."
		exit -1
	fi
fi

NAMEPATN="$2"

i=1
while read FIN; do
	if [ ! -f "$FIN" ]; then
		echo >/dev/stderr "WARNING: Could not find source file '$FIN'. Skipping..."
		continue
	fi
	FOUT=`printf "$NAMEPATN.part%03d.rar" $i`
	if [ -f "$FOUT" ]; then
		echo >/dev/stderr "WARNING: Target file '$FOUT' alread exists. Skipping..."
		continue
	fi
	mv -v "$FIN" "$FOUT"
	i=$[$i+1]
done <"$FILELIST"