aewm software package provides minimalist window manager for X11, 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 aewm
aewm is installed in your system.
Make ensure the aewm package were installed using the commands given below,
$ sudo dpkg-query -l | grep aewm *
You will get with aewm package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | X Window System software |
| Package | aewm |
| Version | 1.3.12-3 |
| Description | minimalist window manager for X11 |
| Sub Section | x11 |