If you have installed software on your Linux system using the terminal then you must have come across apt-get install. This tutorial will explain what the command means and what’s the right way to use it. Let’s get started. What is apt? Apt stands for “Advanced Packaging Tool”. It is a package manager that is […]
The apt command in Linux – A Complete Reference Read More »
Linux, a freely distributable version of UNIX is developed by Linus Torvalds. Linux is one of the most popular operating systems to use for development by programmers. This tutorial will take a deep dive into the history of Linux. The beginning of the UNIX project The inspiration for UNIX came from the Multics project at
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In this article, we’ll learn to set the JAVA_HOME variable in Linux. JAVA_HOME should be correctly set on your system in order for you to be able to run Java programs successfully. In case there is an error, you will get the following error : To avoid getting this error you will have to set
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The help command is the simplest way to get information regarding a built-in shell command. It helps you fetch information from the shell’s internal documentation. It takes a text string as the command line argument and looks for the provided string in the shell’s documents. This saves you the time spent in going through the
Help command in Linux Read More »
In this tutorial, we will be learning how to use the RPM Package Manager (RPM command) to install software packages. RPM is a free open-source package manager tool that comes preinstalled in RHEL, Fedora, and CentOS-based distributions. It’s similar to the apt package manager that accompanies Debian and Ubuntu-based distributions. It’s an easy to use
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Creating and editing files is the most fundamental part of using a Linux-based system. There are different ways to edit files in Linux. In this tutorial, we go over how to edit them on Linux systems. You can either use a GUI text editor, or you can do it using the terminal. This tutorial will
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The tree command recursively lists directories and files in Linux. Files are listed in an indented manner under their directories. Tree command is similar to ls command which is famously known for listing files and directories. The only difference is that tree command outputs the files and directories in a tree-like manner. This command is
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In this tutorial, we will learn how we can run C programs in Linux. C language was developed at Bell Laboratories in 1972 by Dennis Ritchie. It is still very popular for system-level programming. C language is the mother language of many other languages. In fact, Unix is one of the first operating system kernels that
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In this tutorial, we will look at Syslog in Linux and how to send logs to a remote machine using it. Syslog is a standard for message logging. It has been the standard logging mechanism on Linux/Unix systems for a very long time. Although most of the distros now ship with journald – a systemd
What is Syslog in Linux? A Step-by-Step Guide to Set up Remote System Logging Read More »
In this tutorial, we will be installing and configuring the CentOS firewall. We will be using a very powerful and popular Firewall management tool called firewalld. Firewalld is built over iptables (which was previously used to filter network traffic) and comes preinstalled in all newer versions of CentOS, RHEL, and Fedora. Fundamentals of Firewalld Firewalld
CentOS Firewall Tutorial – How to Install and Setup the CentOS Firewall? Read More »