ruby-chunky-png software package provides pure ruby library for read/write, chunk-level access to PNG files, 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 ruby-chunky-png
ruby-chunky-png is installed in your system.
Make ensure the ruby-chunky-png package were installed using the commands given below,
$ sudo dpkg-query -l | grep ruby-chunky-png *
You will get with ruby-chunky-png package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Ruby |
| Package | ruby-chunky-png |
| Version | 1.2.8-1 |
| Description | pure ruby library for read/write, chunk-level access to PNG files |
| Sub Section | Ruby |