Description:

Most digital cameras produce EXIF files, which are JPEG files with
extra tags that contain information about the image.

In contrary to the tools "exif" and "gexif" (and all other
libexif-based tools as "gphoto2") this tool gives a much easier
readable summary of camera settings (shutter speed in 1/x sec, focal
length (also the 35-mm camera equivalent), focal distance, ...), EXIF
header manipulation as stripping off the thumbnail and other info not
needed, stripping off the complete header, applying arbitrary
conversion tools to the JPEG image and conserving the header, renaming
JPEG images with the capture date stored in the header, and even
turning the images upright when the camera has an orientation sensor
(as Canon Digital IXUS 400) ...

The tool is very compact, the executable has only a size of around 35
kb, the whole package (with documentation) occupies 60 kb.

See /usr/share/doc/jhead-2.6/usage.html for how to use this
program.