Jeex is a simple hexadecimal editor which allows user to create, open and edit files in hexadecimal, binary, octal and ASCII. The features include insert, delete, copy-and-paste, search and many others.
It also shows several information about the opened file, like file mode bits, ownership, last access and modification timestamps.
Install jeex in ubuntu
Open the terminal and run the following command
sudo apt-get install jeex