リサイズするとき便利だよ

mv

count=0

for inpath in `\find /Volumes/20190915/bb -name '*.JPG' `; do
       


    outpath=${inpath/bb/dd}


	echo "- - - - - - - -"


    if [ $((count%4)) = 0 ] ; then
	    echo $inpath 
	    echo $outpath
	    echo $count

	    mv $inpath $outpath
	fi


    # convert -resize 1000x $inpath $outpath
    # mv $inpath $outpath


    count=$((count + 1))
done

resize.sh

 #!/bin/sh

resize2 () {
    for inpath in `\find ./191004_illust/2_thumbnail -name '*.jpg' -or  -name '*.png' `; do
       
        outpath=${inpath/191004_illust/191004_illust_resize}

        echo "- - - - - - - -"
        echo $inpath 
        echo $outpath

        # echo $outpath
        convert $inpath -resize 488x $outpath
    done
}

resize3 () {
    for inpath in `\find ./191004_illust/3_shitagaki -name '*.jpg' -or  -name '*.png' `; do
       
        outpath=${inpath/191004_illust/191004_illust_resize}

        echo "- - - - - - - -"
        echo $inpath 
        echo $outpath

        # echo $outpath
        convert $inpath -resize 1918x $outpath
        # convert $inpath -quality 100 $outpath
    done
}


# main
case $1 in
  
    # "resize1") resize1;;
    "resize2") resize2;;
    "resize3") resize3;;
   
    *) echo "引数を指定して下さい";;
esac