1. Download the archive from the Source Code Pro homepage. You can do it also using wget: Open a terminal (ctrl-alt-t or press the win key and type "terminal") and type

   
   

   wget https://github.com/adobe-fonts/source-code-pro/archive/2.030R-ro/1.050R-it.zip
   
   

   
   



2. Unzip the archive (you can use Nautilus for that, or use the following command).

   
   

   unzip 1.050R-it.zip
   
   

   
   



3. Locate and ensure your fonts folder exist in your home directory, often in ~/.local/share/fonts folder (either go to home in Nautilus and create a new folder, or type the following from the terminal)

   
   

   fontpath="${XDG_DATA_HOME:-$HOME/.local/share}"/fonts
   
   
   
   mkdir -p $fontpath
   
   

   
   

If you already have that directory, don't worry.

4. Move the Open Type fonts (*.otf) to the newly created .fonts directory. In command line, that would be

   
   

   cp source-code-pro-*-it/OTF/*.otf $fontpath
   
   

   
   



5. If you haven't done it yet, open a terminal, and type

   
   

   fc-cache -f -v
   
   

   
   

Your font is now ready to use and the applications should be able to see it.

All in one script for those who simply want to copy/paste the answer

#!/bin/bash

set  -euo pipefail

I1FS=$'

	'

mkdir -p /tmp/adodefont

cd /tmp/adodefont

wget -q --show-progress -O source-code-pro.zip https://github.com/adobe-fonts/source-code-pro/archive/2.030R-ro/1.050R-it.zip

unzip -q source-code-pro.zip -d source-code-pro

fontpath="${XDG_DATA_HOME:-$HOME/.local/share}"/fonts

mkdir -p $fontpath

cp -v source-code-pro/*/OTF/*.otf $fontpath

fc-cache -f

rm -rf source-code-pro{,.zip}

If you want to install system wide instead of per user, copy the files to /usr/local/share/fonts/ instead of ~/.local/share/fonts/.