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…
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…
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…
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…
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…
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…
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…
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…
In this article, we’ll learn to install cmake on Linux. CMake is a cross-platform open-source meta-build system that can build, test, and package software. It can be used to support multiple native build environments including make in Linux/Unix, Apple’s Xcode, and…
The dd command is a utility to copy and convert files from one location to the other. Interestingly, it stands for ‘copy and convert’ but since the name cc was already taken by the C compiler, it was named ‘dd‘.…