Find and resize all images

img_cnt.sh

#!/bin/sh
ALL_IMGS=`find . *.jpg -type f -name '*.jpg'`
for I in ${ALL_IMGS}  
do
    
    DEM_H=`identify -format "%h"  ${I}`
    DEM_W=`identify -format "%W"  ${I}`
    
    echo ${I} - ${DEM_H} x ${DEM_W}

    if [ ${DEM_H} -gt ${DEM_W} ]; then 
	if [ ${DEM_H} -gt 600 ]; then 
    	    `convert -resize x600 $I $I`
        fi
    else 
	if [ ${DEM_W} -gt 600 ]; then 
            `convert -resize 600x $I $I`
        fi
    fi
done