This gem will provide information about the computer host system, in particular on Linux systems. Commonly used programs will be queried for their version number (and whether they exist). If these programs exist, the version will be displayed on the commandline. This is somewhat similar to the "Linux from Scratch" project, which uses a shell script to display the version of many commonly used programs. Since I dislike shell scripts, I wrote an equivalent tool for this information. For more information, please have a look at the homepage of this gem, at https://rubygems.org/gems/environment_information and look at the documentation to the bottom right side called "Documentation".