rlc - resize like crazy - resize all images in a directory recursively

rlc.sh

#!/bin/sh
#
# rlc: resize like crazy
#
# rlc.sh targetdir

target=$1
destination=$target-resized
dimensions=1000x
quality=100

mkdir $destination

# echo usage if arguments do not exist
if [ -z "$target" ]; then
        echo "rlc.sh targetdir"
        exit 0
fi

imagelist=imagelist.txt

# create image list
find $target/ -iname *.jpg -type f > $imagelist

gm mogrify -output-directory $destination -create-directories -resize $dimensions -quality $quality @$imagelist

rm $imagelist