radare2 software package provides free and advanced command line hexadecimal editor, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install radare2
radare2 is installed in your system.
Make ensure the radare2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep radare2 *
You will get with radare2 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | radare2 |
| Version | 0.9.6-3.1ubuntu1 |
| Description | free and advanced command line hexadecimal editor |
| Sub Section | devel |