#!/bin/ksh

if [[ $# -lt 2 ]]; then
  echo "Usage: $(basename $0) minutes file.mp3"
  echo 'Where minutes is the number of minutes to chop off of the front of file.mp3'
  echo 'This permanently destroys file.mp3 via "mv -i" !'
  exit 1
fi

MIN="$1"
FILE="$2"

mp3splt -Q -a "$FILE" "$MIN"".0" EOF

OUTPUTBEGIN="$(basename $FILE .mp3)"_"$MIN"m_00s__

mv -i "$OUTPUTBEGIN"*.mp3 "$FILE"