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

Jack Wallen shows you how to locate files on the Linux directory hierarchy using the find command.

Jack Wallen continues his Linux 101 series, with an introduction on how to copy files and directories from the command line.

The Linux find command makes it easy to find files on your system – even if you don’t remember their names or exactly when you last updated them. Some of the options are a bit more challenging ...

The Linux comm command makes it easy to compare a couple text files and determine if they both contain the same lines -- whether the file contents are sorted or not.

Want to know the tricks of replacing a variable in a file using the SED command? This article will give you an overview of replacing a variable value in a file using SED. Before replacing a variable ...

In the world of Unix-based operating systems like Linux, file packaging and compression utilities play a pivotal role. One such utility is the zip command, an effective tool for compressing files to ...

How to Run a Command on Startup in Linux. One of Linux's strengths as an operating system is its ability to be configured and tweaked to suit your tastes. Using the command line allows you to ...