Operating Systems

Linux users know that some commands should always be used with caution.  Unlike some operating...

Every system and user application on your Linux system needs at least one process to...

In the grand amphitheater of operating systems, two champions have long riveted the crowd: FreeBSD...

Strings are an important aspect of working with scripts.  As such, string comparison lies at...

Both Linux and macOS are two of the most renowned operating systems. Each boasts a...

If you’ve used any operating system, you are familiar with links or files pointing to...

The make command in Linux automates the process of creating and compiling applications from their...

Did you know the worldwide Linux market will reach $15.64 billion by 2027? It is...

A Docker image is like a ready-to-go package for your application. Typically, a Docker image...

Oracle's VirtualBox is a free, open-source software that allows you to install different operating systems...

The UEFI and BIOS are two firmware interfaces crucial in booting up a computer system....

Many sysadmins and developers spend a lot of their time in the Linux shell. Whether...

OpenSSL plays a crucial role in securing online communication. It's a robust, open-source library for...

Ever wished you could bring back something you accidentally deleted in Vim or Vi?  These...

PHP (short for Hypertext Preprocessor) is a server-side scripting language widely used for task automation...

Making a new file in Linux is easy, and you can use one of the...

SSH (Secure Shell) is a network protocol that creates a secure tunnel for data on...

Node.js and NPM (Node Package Manager) are integral tools in modern web development.  In frontend...

Developed in 1974 by Lee McMahon of the Bell Labs, Stream Editor (shortened as sed)...

Python, with its approachable syntax, straightforward semantics, and extensive lineup of frameworks and libraries, is...

Ever wished that the apps on your Linux machine could understand where to find new...

Many admins and users often forget about checking the available disk space because servers generally...

macOS uses environment variables for storing critical information about the system and user applications. Knowing...

Upgrading the Python version to the latest is the easiest way to access the language's...

Linux offers several ways of getting software on your system. RPM (Red Hat Package Manager)...

Even the new users know that directories are the primary working blocks of a Linux...

FFmpeg is a popular open source suite of libraries and CLI utilities used for processing...

When a software is ready to ship, the developers usually focus on building the final...

In Ubuntu (and pretty much all popular Linux distributions), the recommended method for running commands...

Cron jobs are a crucial tool in a Linux system administrator's toolbox. Admins use them...

The large number of available packages and libraries is a very popular reason many developers...

MySQL is one of the most popular open-source relational database management systems, widely used for...

User management is a critical part of server and network administration. Admins need to group...

There are times when you need to recall all the flags and parameters of a...

Cron jobs in Linux are automated tasks that help users schedule regular activities, such as...

Telnet is a flexible and very fast tool for remote administration, debugging, and information retrieval...

Since the days of mainframes and remote terminals, accessing and working with remote systems is...

Software applications depend upon multiple libraries (called dependencies) that contribute various functionalities. Sometimes, the installation...

Did you know a typical Linux installation can have about 1000 commands and utilities? However,...