exiv2 0.14-2 (amd64 binary) in ubuntu gutsy

 Exiv2 can:
 .
  * print the Exif metadata of JPEG, TIFF and several RAW image formats as
    summary info, interpreted values, or the plain data for each tag
  * print the IPTC metadata of JPEG images
  * print, set and delete the JPEG comment of JPEG images
  * set, add and delete Exif and IPTC metadata of JPEG images
  * adjust the Exif timestamp (that's how it all started...)
  * rename Exif image files according to the Exif timestamp
  * extract, insert and delete Exif metadata, IPTC metadata and JPEG comments
  * extract, insert and delete the thumbnail image embedded in the Exif metadata
  * fix the Exif ISO setting of picture taken with Nikon cameras
 .
  Homepage: http://www.exiv2.org/