In this tutorial, you will learn how to use two simple and lightweight command line tools to help you analyze the space usage of your files and folders both on your local machine and on a remote system. Let’s get started. (more…)
The sudoers file is used by Linux and Unix administrators in general in order to to allocate specific system rights to new and existing system users. This enables the system administrator to control what every (more…)
Sometimes system administrators or frequent users on Ubuntu do not want to enter a password when they run some specific commands using sudo.In this article you will learn how to use sudo on commands without (more…)
The ‘useradd’ command in linux is a popular tool used to create or add user accounts.Much like the command ‘usermod’, the ‘useradd’ command affects many files when it is invoked to create a new user (more…)
The usermod command modifies or alters any attributes of a previously created user account via command line.In some situations, an administrator would need to change the existing attributes of an already created (more…)
Services which are also known as daemons, are scripts and programs that run in the background. These services, which require no user input, can provide many functionalities like database services (such as (more…)
You may have noticed as a Linux user (here we will focus on Ubuntu, but this applies to major distros), that your system has rather been slow or sluggish over time despite the powerful hardware of your computer. (more…)
One of the most commonly used commands to compress and extract files is ‘tar’. The tar tool, which stands for ‘tape archive’, is one of the most important utilities for system administrators in the Unix/Linux world. The (more…)
The gzip utility is Linux is a common tool to compress files, or in other words, to reduce their size. The original file, when compressed by gzip will have the extension .gz by default. The file name however, when it (more…)
In this article you will learn how to use the grep command on Linux along with simple examples to help you find a string or pattern within a given file. (more…)
