Exif-Information in jpg-files

Exif-Header is a place inside a jpg-file (and some other formats) where additional information is stored. Reading and Manipulating them in Linux on Commandline is the topic of this page. I did on Ubuntu, but most of this tools are available on each distro and need to be installed cause they are not part of standard-ubuntu.

Easy reading and easy manipulation of timestamps and many other information. Specifies in most common tasks like adjusting timestamps, renaming files using some templates including the timestamp and can include/extract something called sidecar :)

read the exif-information:

exiv2 IMG.JPG

modify timestamps:

exiv2 ad -a HH:MM:SS -D DAYS -o MONTH -Y YEARS IMG.JPG

at least one of this options need to be specified. Of course negative numbers can be applied.

exifautotran *.JPG

The most powerful tool for manipulation of exif-stuff. Read the man-page if you need to do things that exiv2 cannot do.