Much to the chagrin of those who would like to malign the Linux operating system, it's actually quite easy to use. Thanks to modern GUI desktop environments and applications, anyone can jump into the ...

Quick: If you shout "regular expressions" in a crowd of Linux users, what happens? Answer: Everyone will tell you the right way to use them, and every answer will be different. Regular expressions -- ...

There are quite a few ways to extract words and substrings from lines of text on a Linux system, replace them with other strings, select delimiters, and even get rid of white space at the beginning ...

Before we learn how to quickly empty a file without deleting it, let's understand why and when this is useful. Clearing the contents of a file without deleting the file itself can be important for ...

Linux offers a couple of easy ways to record commands you type so that you can review or rerun them. Recording the commands that you run on the Linux command line can be useful for two important ...

Simply run the history command to see the list of all previously executed commands in Linux terminal: In addition to viewing command history, you can also manage your command history and perform ...

Before we proceed further, it’s important to learn about user privileges in Linux. The way Linux security works is by limiting the privileges among users. There are three types of users in Linux: Now ...

In this guide, we will introduce you to 15 essential Linux commands that every beginner should know. By learning these commands, you'll be able to use and understand the Linux command line environment ...

Being able to combine various files together into one can be very helpful. You can arrange and sort out your desktop and combine several related documents into one. In Linux, there are several ways to ...