aldo software package provides Morse code training program, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install aldo
aldo is installed in your system.
Make ensure the aldo package were installed using the commands given below,
$ sudo dpkg-query -l | grep aldo *
You will get with aldo package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Ham Radio |
| Package | aldo |
| Version | 0.7.7-1 |
| Description | Morse code training program |
| Sub Section | Hamradio |