effect round and shadow to image with ImageMagick command

gistfile1.sh

#!/bin/sh

for i in `/bin/ls *.jpg`
do
        FILE=$i
        GEOM=`identify $FILE | awk '{print $3}'`
        WIDTH=`echo $GEOM| awk -Fx '{print $1}'`
        HEIGHT=`echo $GEOM| awk -Fx '{print $2}'`

        C_WIDTH=`expr $WIDTH + 5`
        C_HEIGHT=`expr $HEIGHT + 5`
        R_WIDTH=`expr $WIDTH - 5`
        R_HEIGHT=`expr $HEIGHT - 5`

        convert -size ${C_WIDTH}x${C_HEIGHT} -draw "roundRectangle 0,0,${R_WIDTH},${R_HEIGHT},13,13" -roll +5+5 -blur 5,5 tile:white.ppm bokashi.jpg
        convert -size ${WIDTH}x${HEIGHT} -fill "#FFFFFF" -draw "roundRectangle 0,0,${WIDTH},${HEIGHT},13,13" tile:black.ppm r_mask.jpg
        composite -compose plus r_mask.jpg bokashi.jpg masked_bokashi.jpg
        convert -size ${WIDTH}x${HEIGHT} -draw "roundRectangle 0,0,${WIDTH},${HEIGHT},13,13" tile:white.ppm mask.jpg
        composite -compose plus $FILE mask.jpg masked.jpg
        composite -compose Multiply masked.jpg masked_bokashi.jpg thumbnails/$FILE
done
rm -f  r_mask.jpg bokashi.jpg masked_bokashi.jpg mask.jpg masked.jpg