28 May 2007 A EXIF dater script

The script below will take a filename eg: DSCN0001.JPG, extract the “Image Created” metadata and rename the original file to something like 2006-03-23_DSCN00001.JPG and it will do it automatically for you.

#! /bin/shfunction usage() {

if [ $# -ne 1 ]; then
    echo "ExifDater - version 0.1 - March 23 2006"
    echo "El-Lotso ”
    echo “This  is  free  software;  see the source for copying conditions.”
    echo “There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR”
    echo “A PARTICULAR PURPOSE.”
    echo
    echo “ExifDater utilises the exiftags( http://johnst.org/sw/exiftags/)”
    echo “program to sequentially extract the image creation date from”
    echo “JPEG EXIF headers.”
    echo
    echo “Usage:”
    echo “$0 /path/to/jpg/directory”
    exit 0
fi
}

function exiftimexist(){
which exiftime > /dev/null 2>&1
if [ $? -ne 0 ]; then
    echo
    echo “Unable to locate exiftime binary”
    echo “Please make sure it is installed and is in your path.”
    echo
    exit 0
fi
}

function gotodir(){
cd $1 > /dev/null 2>&1

if [ $? -ne 0 ]; then
    echo
    echo “Directory does not exists”
    echo “Please try again.”
    echo
    exit 0
fi

}

function jpgexist(){
find . -iname “*.jpg” -type f >/dev/null 2>&1

if [ $? -ne 0 ]; then
    echo
    echo “There are no JPEG pictures in this directory”
    echo “Please try again.”
    echo
    exit 0
fi
}

function myexifdater(){
for i in *.jpg
do
    create_date=`exiftime “$i” 2>&1 | grep -i image created | cut -d” ” -f3 | sed -e ’s/:/-/g’`
    if [ “$create_date” == “” ]; then
        echo -e “SKIPPING IMAGE $i \t\t\t [NO EXIF DATA FOUND]”
        continue
    fi
    echo -n Processing Image $i Created on $create_date
    do_rename=$( echo $i | sed -e ’s/(.*)/mv “&” “‘$create_date’_1″/g’|sh)
    echo -e \t[DONE]

done
}

usage $1
exiftimexist
gotodir $1
jpgexist
myexifdater

Usage: ExifDater /your/picture/path

Download the ExifDater script.

There is also a Windows version of a program that’s called ExifDater for those who need that :)

Source: http://lotso.livejournal.com/2006/03/23/

Tags: bash, EXIF, exiftime, JPG, sed