MP3 Splitter using ffmpeg

mp3_splitter

#!/bin/bash

#slice mp3 file to 30 sec or less starting from the passed begginning
if [ "$#" -eq 2 ] && [ -n "$1" ]
then
DURATION=30	
	ffmpeg -ss $2  -i "$1" -t $DURATION -acodec copy "$1.output.mp3"
else
	echo
	echo
	if [ "$#" -ne 2 ]; then
		echo "Number of arguments doesn't match!"
	fi
	
	echo "Usage:";
	echo "$0 <mp3-file> <stating-second>";
	echo "The output file will be named <mp3-file>.output.mp3"
	echo "For example:";
	echo "$0 path/to/file.mp3 42";
fi