The Linux Compendium
Most Ubuntu systems use bash or dash as their default terminal application. You type your commands at a standard command prompt, which usually displays your username, hostname, and current directory in a predefined color scheme. Bash provides many customization options for the command prompt that allow you to not only add different functions to the … Read more
PDF or Portable Document Format is usually our first choice when it comes to printing, sharing, and sending documents, especially larger documents. On Windows and macOS, you probably are familiar with and rely on the widely used Acrobat products for viewing and editing PDF files. Unfortunately, there is no standard PDF editor on your Linux … Read more
As Linux users, we sometimes need to know what port number a particular process is listening on. All ports are associated with a process ID or service in an operating system. So how do we find this port? In this article, we will present three different methods that you can use to find out which … Read more
Basically, everything in Linux is a file. But before you are able to edit a file, you must be able to locate it in your system. About Linux file search In this article, I briefly describe two commands in detail with useful examples to search for files with the terminal. The two commands are the … Read more
What is iptables? Iptables is a command-line firewall program that allows or blocks traffic based on the policy chain used. Iptables takes a packet-based approach to monitor traffic. When a program tries to connect to your system, iptables looks for a rule from a predefined list. If a rule is not found, it falls back … Read more
Many Java-based programs require the Java Runtime Environment (JRE) to run smoothly regardless of the operating system. For development, most IDEs like Eclipse and NetBeans require the Java Development Kit (JDK) on your computer. Whether you’re a newbie who wants to learn how to develop or an application you have installed requires a Java installation … Read more
The performance of a computer or server environment very much depends upon the system memory and disk usage. If something is consuming more disk space then it will lead to a system error. Likewise, increasing log file size must be controlled to reduce such risk. Logrotate was introduced as a system utility that rotates, compresses … Read more
We all know how important it is to use strong passwords for our systems, online accounts, and other sensitive applications. The real question is how you generate a password that you can rely on and that meets the criteria of a strong password. Ideally, a strong password must contain lowercase and uppercase letters, numbers, and … Read more
There are many free and open-source video players for Ubuntu. Most of them do the basic tasks pretty well and you won’t miss anything you know from Windows that you could use on Ubuntu. However, some players offer additional features and you can choose which one is best for you based on the feature list. … Read more
TLP is a free, open-source, and feature-rich utility for optimizing battery consumption on laptops running Ubuntu and other Linux distributions. You can find it in both CLI and GUI versions for your convenience. TLP comes with a default configuration that is pretty much perfect for your operating system and the underlying machine. All you need … Read more