Classify landscape and portrait images in a directory.

landport.sh

#!usr/bin/env bash

# This script accepts a directory name and classifies
#   portrait and landscape images in that directory.

if [ $# == 0 ];then
    echo "$0 <path to image directory>"
    exit 1
else
    DIR=$1
fi

PORTDIR=$DIR/portrait
LANDDIR=$DIR/landscape

mkdir -p $PORTDIR $LANDDIR

for file in $(ls $DIR)
do
	if [[ $file == *.png || $file == *.jpg || $file == *.PNG || $file == *.JPG ]]; then
        width=$(identify -format %w "$DIR/$file")
        height=$(identify -format %h "$DIR/$file")

		if [[ $width -lt $height ]]; then
			mv $DIR/$file $PORTDIR
		else
			mv $DIR/$file $LANDDIR
		fi
	fi
done