libxtst6 software package provides X11 Testing -- Record extension library, 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 libxtst6
libxtst6 is installed in your system.
Make ensure the libxtst6 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libxtst6 *
You will get with libxtst6 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libxtst6 |
| Version | 2:1.2.2-1 |
| Description | X11 Testing -- Record extension library |
| Sub Section | libs |