| 12345678910111213141516171819202122232425262728 | #!/bin/zsh -fcase $1 in    m4a)        for song in *.m4a ;        do            NEW=`basename -- "$song" .m4a`.ogg            if [[ -e $NEW ]] ; then	        echo "Skipping ${NEW}, already converted."            else                faad -w -- "$song" | oggenc -o "${NEW}" -            fi        done        ;;    mp3)        for song in *.mp3 ;        do            NEW=`basename -- "$song" .mp3`.ogg            if [[ -e $NEW ]] ; then	        echo "Skipping ${NEW}, already converted."            else                sox ${song} ${NEW}            fi        done        ;;    *)        echo Nothing to doesac
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