Par un détour à Yoda

#!/bin/bash
#
# wav to mp3
# This is not a script of my creation, I just added some things
# Tell me if you are the real author of this script
# Yoda-BZH tristan AT kerguz DOT fr

IFS="
"

function wav2mp3 () {
        if [ ! -f "$1" ]; then
                echo "File $1 not found!"
        else
          if [ -f "${1%%.[Ww][Aa][Vv]}.mp3" ]
                then
                  echo "File ${1%%.[Ww][Aa][Vv]}.mp3 already exists, skipping"
                        return
                fi
                #wav=`ls "$1" | tr -d "*"`
                mplayer -ao pcm "${1%%.[Ww][Aa][Vv]}.wav" "$1" &&
                #mv audiodump.wav "$wav" && 
                #unset wav &&
                lame -h -b 160 "audiodump.wav" "${1%%.[Ww][Aa][Vv]}.mp3"
                rm -vf "audiodump.wav" ||
                #&&
                #rm -f "$1" ||
                echo "There was a problem with the conversion process!"
        fi
}

# convert all wma files in directory

if [ $# -eq 1 -a -d "$1" ]; then

        for file in $1/*.[Ww][Aa][Vv]; do
                wav2mp3 "$file"
        done
        exit
fi

# One or more wma files were given

for file in $*; do
        wav2mp3 "$file"
done

# Not enough information

if [ $# -lt 1 ]; then

        echo
        echo "Usage:    wav2mp3 myfile.wav"
        echo "  wav2mp3 /directory/containing/wma/files"
        echo "  wav2mp3 myfile.wav myfile2.wav myfile3.wav"
        # You have to use quotations for the arguement below.
        # Failure to do so will result in only one file being
        # converted. Namely, the first one it comes across...
        echo '  wav2mp3 "*.wav"'
        echo
        echo "For converting .wma's that have spaces in the"
        echo 'name, use the directory option OR "*.wav"'
        echo
        exit

fi

exit