Rename a slew of .ogg files. Actually not a great script, but useful for re-using for other directory recursion/diving operations.

oggrename.sh

#!/bin/bash

BASEDIR=$1

if [ -z $BASEDIR ] ; then
  echo "Usage: checkm3us directory"
  exit -1
fi

if [ ! -d $BASEDIR ] ; then
  echo "Directory $BASEDIR not found"
  exit -1
fi

DIRLIST=`ls -1d "$BASEDIR/"*`
IFS="
"

for DIRECTORY in $DIRLIST ; do
  [ ! -d "$DIRECTORY" ] && continue
  PLAYLISTS=`ls -1d "$DIRECTORY/"*.m3u`

  for PLAYLIST in $PLAYLISTS ; do
    SIZE=`grep -c '' "$PLAYLIST"`
    TEMP_PLAYLIST="$PLAYLIST.tmp"
    rm -f $TEMP_PLAYLIST

    for (( INDEX=1 ; $INDEX <= $SIZE ; INDEX++ )) ; do
      ENTRY=`sed -n "$INDEX"p "$PLAYLIST"`				# Get playlist entry
      ENTRY=`echo "$ENTRY" | awk '$0 {print gensub(/\n|\r/,"",1)}'`	# Get rid of newlines
      TRACKENTRY=`echo "$ENTRY" | awk '$0 {print gensub(/^[0-9][0-9]-/,"",1)}'`       # Get rid of track numbers

      if [ ! -r "$DIRECTORY/$ENTRY" ] ; then
        echo "Entry $ENTRY does not exist."
      fi

      if [ $INDEX -lt 10 ] ; then
        TRACKENTRY="0$INDEX-$TRACKENTRY"
      else
        TRACKENTRY="$INDEX-$TRACKENTRY"
      fi

      mv "$DIRECTORY/$ENTRY" "$DIRECTORY/$TRACKENTRY"
      echo "$TRACKENTRY" >> $TEMP_PLAYLIST
    done

    mv $TEMP_PLAYLIST $PLAYLIST
  done
done