Script limpiar RAWs huérfanos

#!/bin/bash

# Uso: limpia_raws.sh [[path] [[extension] [extensionjpg]]]
# Sin parametros toma el path actual, DNG y JPG respectivamente

UNITSLOOP=0
UNITS=("B" "KB" "MB" "GB")

TAM=0
COUNT=0

function humantam {
    if [[ $1 -gt 1024 ]]; then
        UNITSLOOP=`expr $UNITSLOOP + 1`
        AUX=`echo "$1/1024" | bc`
        humantam $AUX
    else
        TAM=$1
    fi
}

WHERE=`pwd`
# Olympus: RAWEXT='ORF'
# Panasonic: RAWEXT='RW2'
# Fuji: RAWEXT='RAF'
RAWEXT='DNG'
JPGEXT='JPG'
XMPEXT='xmp'

if [[ $# -eq 1 ]]; then
    if [[ $1 = "-h" ]]; then
        echo -e "Uso: limpia_raws.sh [[path] [[extension] [extensionjpg]]]"
        exit 0
    fi
fi

if [[ $# -ge 1 ]]; then
    WHERE=$1
fi

if [[ $# -ge 2 ]]; then
    RAWEXT=$2
fi

if [[ $# -ge 3 ]]; then
    JPGEXT=$3
fi

cd "$WHERE"

for i in `ls *.$RAWEXT`; do
    AUX=`echo $i | sed s/$RAWEXT/$JPGEXT/`
    if [[ ! -f $AUX ]]; then
        COUNT=`expr $COUNT + 1`
        AUXTAM=`ls -l $i | cut -f 5 -d' '`
        TAM=`expr $TAM + $AUXTAM`
        echo -e "Borramos $i"
        rm $i
    fi
done

humantam $TAM

echo -e "Borrados $TAM${UNITS[$UNITSLOOP]} en $COUNT archivos"