pterm software package provides PuTTY terminal emulator, 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 pterm
pterm is installed in your system.
Make ensure the pterm package were installed using the commands given below,
$ sudo dpkg-query -l | grep pterm *
You will get with pterm package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | X Window System software |
| Package | pterm |
| Version | 0.63-4ubuntu0.1 [amd64, i386], |
| Description | PuTTY terminal emulator |
| Sub Section | x11 |