I recently thought about writing a Groovy script to search JARs for a specific string, but decided to first look for an alternative rather than writing a script. The alternative needed to be easy to ...

Getting started on the Linux command line might seem overwhelming at first, but the many commands you need to use will fall into place more quickly than you might imagine. If you are just getting ...

These commands are essential when you're working with files and directories.

I've been using Linux for a very long time, and from day 1, the terminal window and command-line interface (CLI) have been an integral part of my work. At the same time, I've learned that it's OK to ...

Linux might sound scary for first-time Linux users, but actually, it isn’t. Linux is a bunch of open-source Unix operating systems based on Linux Kernel. These operating systems are called Linux ...

The awk command can make it easy to remove duplicate characters from a string even when those characters aren’t sequential, especially when the process is turned into a script. First, the awk command ...

Working on the command line is an integral part of being a successful Linux user. You need to have a firm grasp of certain commands to work effectively. There are even certain commands that you must ...

The commands below include basic Unix commands such as ls, cat, cp, mv, grep, etc. We will also talk about some of the shortcuts that can help you take control of your operating system faster and in a ...

Bash vs. Fish? I've tried both Linux shells, and one makes using the command line much easier ...

This article is reprinted from the book A Practical Guide to Linux Commands, Editors, and Shell Programming 3rd edition, with permission of the author and publisher ...