Check photo shoot date from exif-data by filename

#!/bin/sh
for f in $1/*; do
    if [ -d "$f" ]; then
        #echo $f
        for img in "$f"/*; do
                if [ -f "$img" ]; then
                        PVM=`exif "$img" |grep "Date and Time (origi|"| sed 's/Date and Time (origi|/ /g'`
                        echo `basename $img` $PVM
                fi
        done
    fi
done