Skype is most popular applications for communication via Text, Audio and Video. You can make online free audio and video calls over the internet. It is also providing service of international calling to mobiles and landlines worldwide at affordable price. It is cross-platform, available on Android systems, Windows, Linux, and macOS. This guide exaplains how
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Unlink Command in Linux (Remove File)
The unlink is a command-line utility for removing a single file. It calls directly interfaces with the unlink system function, which removes a specified file. This tutorial shows you how to remove a file in Linux using unlink command. Removing File with unlink# Following is the syntax for the unlink command: unlink FILENAME Here, you
How to Install Spotify on Ubuntu 20.04
Spotify is a digital music streaming service that gives you instant access to millions of songs, from old classics to the latest hits. This guide shows two ways of installing Spotify on Ubuntu 20.04. Spotify can be installed as a snap package via the Snapcraft store or as a deb package from the Spotify repositories.
How to Install PHP on Ubuntu 20.04
PHP is one of the most used server-side programming languages. Many popular CMS and frameworks such as WordPress, Magento, and Laravel are written in PHP. This guide covers the steps necessary to install PHP on Ubuntu 20.04 and integrate it with Nginx and Apache. At the time of writing, the default Ubuntu 20.04 repositories include
How to Install GCC on Ubuntu 20.04
GCC, or GNU Compiler Collection is a compiler system for C, C++, Objective-C, Objective-C++, Fortran, Ada, D, Go, and BRIG (HSAIL) programming languages. It’s produced by the GNU Project and the current version is GCC 9.3. In this article we will explain how to install GCC on Ubuntu 20.04. Installing GCC on Ubuntu 20.04# The
Bash Exit Command and Exit Codes
Often when writing Bash scripts, you will need to terminate the script when a certain condition is met or to take action based on the exit code of a command. In this article, we will cover the Bash exit built-in command and the exit statuses of the executed commands. Exit Status # Each shell command
How to Install Vagrant on Ubuntu 20.04
Vagrant is a an open-source tool for building and managing virtual machines. Generally, Vagrant is used by developers to set up a development environment that works across multiple operating systems. In this tutorial, we will show you how to install Vagrant on Ubuntu 20.04 system. Prerequisites# Virtualbox should installed on your Ubuntu 20.04 system. You
How to Install GCC (build-essential) on Ubuntu 20.04
The GNU Compiler Collection (GCC) is a collection of compilers and libraries for C, C++, Objective-C, Fortran, Ada, Go, and D programming languages. A lot of open-source projects, including the Linux kernel and GNU tools, are compiled using GCC. This article explains how to install GCC on Ubuntu 20.04. Installing GCC on Ubuntu 20.04 #
How to Redirect stderr to stdout in Bash
When redirecting the output of a command to a file or piping it to another command, you might notice that the error messages are printed on the screen. In Bash and other Linux shells, when a program is executed, it uses three standard I/O streams. Each stream is represented by a numeric file descriptor: 0
How to Install and Configure Redis on Ubuntu 20.04
Redis is an open-source in-memory key-value data store. It can be used as a database, cache and, message broker, and supports various data structures such as Strings, Hashes, Lists, Sets, and more. Redis provides high availability via Redis Sentinel and automatic partitioning across multiple Redis nodes with Redis Cluster. This tutorial describes how to install