Port of the latest version of jhead.  I've added a little ARexx script which
prompts for a file and then shows all the Exif data.

The below text is taken from the author's website.
http://www.sentex.net/~mwandel/jhead/

Exif Jpeg header manipulation tool
Version 2.90
Updated Feb 05 2010

Things jhead can extract from an Exif jpeg file

*	Time and date picture was taken 
*	Camera make and model 
*	Integral low-res Exif thumbnail 
*	Shutter speed 
*	Camera F-stop number 
*	Flash used (yes/no) 
*	Distance camera was focused at 
*	Focal length and calculate 35 mm equivalent focal length 
*	Image resolution 
*	GPS info, if stored in image 
*	IPTC header 
*	XMP data 	

Things jhead can modify in an exif jpeg file

*	Up-right images according to rotation tag using jpegtran 
*	Set or relative adjust internal exif timestamps 
*	Fix date / time offsets in large batches of images 
*	Re-name or date stamp files according to exif timestamp 
*	Transfer exif headers between images 
*	Replace thumbnails inside Exif headers 
*	Edit jpeg comments (but not the Exif comments) 
*	Delete exif or comment sections from jpeg images 
*	Create new minimal exif header containing date and thumbnail

The files coming out of a pretty much all Digital cameras are in the Exif
flavour of
Jpeg files. Exif files are for the most part Jpeg files, but start with a
different
header block, and contain additional data sections with camera settings, as well
as
a preview thumbnail picture as part of the Exif header. Many image browsers
today
make use of this integral thumbnail when browsing, while other browsers make
their
own thumbnails based on the image as a whole. 

Because I am interested in photography, I am always curious just exactly what
settings my fully automatic digital camera actually did end up using. Back in
1999,
when I originally wrote jhead, I couldn't find a program that would consistently
display the settings, nor one that could be compiled into a simple executable. I
have since added many more features to jhead, many of them the result of
suggestions
or code contributions. 

Though there are many programs out there now that can manipulate Exif headers
today,
for many tasks, jhead remains the simplest and most effective tool for the job,
especially if used for automated or scripted tasks.


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 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
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[generic]                 9572   11420  83.8% -lh5- 52e6 Sep 18 17:11 jhead-2.90.info
[generic]                 9575   11420  83.8% -lh5- 9bdb Sep 18 17:11 jhead-2.90/docs.info
[generic]                 4028    9380  42.9% -lh5- 67a8 Feb  5  2010 jhead-2.90/docs/changes.txt
[generic]                 3160    5120  61.7% -lh5- 004b Sep 18 17:10 jhead-2.90/docs/changes.txt.info
[generic]                 6596   18014  36.6% -lh5- c0da Sep 18 17:08 jhead-2.90/docs/jhead.guide
[generic]                 3162    5120  61.8% -lh5- fb4c Sep 18 17:10 jhead-2.90/docs/jhead.guide.info
[generic]                 1141    2285  49.9% -lh5- a358 Feb  5  2010 jhead-2.90/docs/readme.txt
[generic]                 3162    5120  61.8% -lh5- b07a Sep 18 17:10 jhead-2.90/docs/readme.txt.info
[generic]                 8655   23506  36.8% -lh5- 7219 Feb  5  2010 jhead-2.90/docs/usage.html
[generic]                 7963    9571  83.2% -lh5- c585 Sep 18 17:10 jhead-2.90/docs/usage.html.info
[generic]                45922  106557  43.1% -lh5- a16e Sep 18 17:03 jhead-2.90/jhead
[generic]                15360   63269  24.3% -lh5- d2e9 Feb  5  2010 jhead-2.90/source/exif.c
[generic]                 2082    7210  28.9% -lh5- 3e4a Feb  5  2010 jhead-2.90/source/gpsinfo.c
[generic]                 2394    8757  27.3% -lh5- 000c Feb  5  2010 jhead-2.90/source/iptc.c
[generic]                17199   60971  28.2% -lh5- 286d Feb  5  2010 jhead-2.90/source/jhead.c
[generic]                 2693    7679  35.1% -lh5- 18e3 Feb  5  2010 jhead-2.90/source/jhead.h
[generic]                 1630    4475  36.4% -lh5- f5d6 Feb  5  2010 jhead-2.90/source/jhead.spec
[generic]                 5744   23647  24.3% -lh5- 085d Feb  5  2010 jhead-2.90/source/jpgfile.c
[generic]                   23      23 100.0% -lh0- 517e Feb  5  2010 jhead-2.90/source/make.bat
[generic]                  236     432  54.6% -lh5- 68f5 Feb  5  2010 jhead-2.90/source/makefile
[generic]                  257     641  40.1% -lh5- dd83 Feb  5  2010 jhead-2.90/source/makefile-win32
[generic]                 2001    6987  28.6% -lh5- 5b7d Feb  5  2010 jhead-2.90/source/makernote.c
[generic]                 2499    8673  28.8% -lh5- 0911 Feb  5  2010 jhead-2.90/source/myglob.c
[generic]                 1242    4005  31.0% -lh5- a179 Feb  5  2010 jhead-2.90/source/paths.c
[generic]                  205     457  44.9% -lh5- 22f5 Dec 30  2005 jhead-2.90/view_exif.rexx
[generic]                 2052    2480  82.7% -lh5- a581 Sep 18 17:11 jhead-2.90/view_exif.rexx.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        26 files  158553  407219  38.9%            Sep 18 20:34