The exif tool can be used to list the EXIF information of JPEG files from the commandline in Ubuntu. This tool can be installed easily by using the package name exif.
To list the EXIF tags and their values in a JPEG file:
$ exif foo.jpg
Some of the information is specific to each camera manufacturer and this is stored in the Maker Note. To view the information in the maker note of a JPEG file:
$ exif --show-mnote foo.jpg
Tried with: exif 0.6.20 and Ubuntu 12.04 LTS