Since Ubuntu is a Linux operating system, you can bypass the graphical user interface entirely and open your PDF files from the command line.

3 Linux commands I use for downloading files and how they're different Need help accessing your files without a web browser? Linux has a few solutions you can access right from the command line.

PDF tools on Linux Most if not all Linux distributions provide PDF viewers and tools that allow saving documents as PDF files, but not necessarily PDF editors.

A compilation of essential commands for searching, monitoring and securing Linux systems - plus the Linux Command Line Cheat Sheet.

TechRepublic’s how-to guidebook makes it easier, with tips on how to search for files from the Linux command line, quickly opening a terminal in a specific directory and how to delete files and ...