jeex software package provides visual editor to view and edit files in hexadecimal, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install jeex
jeex is installed in your system.
Make ensure the jeex package were installed using the commands given below,
$ sudo dpkg-query -l | grep jeex *
You will get with jeex package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Editors |
| Package | jeex |
| Version | 12.0.3-1 |
| Description | visual editor to view and edit files in hexadecimal |
| Sub Section | Editors |