newbie: what ssh commands do I need in order to install this plugin?

[Loginname]

magento 1.9.3.7

I'm about to install https://github.com/integer-net/solr-magento1, but unsure if I'm able to do it correctly. so with this post I as what is the most basic commands I need to run in order to install using composer:

The documation for the extension says

"5. If using **Composer**: Just add "integer-net/solr-magento1" to the list of requirements in your composer.json.
**Otherwise**: Download the archive from the [Releases Page](https://github.com/integer-net/solr-magento1/releases).
Copy the files and directories from the src directory of the module repository into your Magento installation.
**Attention**: You will need the files of two more repositories: The
[IntegerNet_Solr base library](https://github.com/integer-net/solr-base) and the
[Aoe_LayoutConditions module](https://github.com/AOEpeople/Aoe_LayoutConditions). They are already contained in
the release archive."

I'm unsure what command I should use to start the installation? Sorry I'm so f*ing newbie

[lfolco]

If you are using composer, then you should just be able to run 

composer install

once you update your composer.json file. The additional requirements are contained within Integer.net's composer.json file already (aoe_layoutconditions and solr-base).