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Linux sum Command Tutorial for Beginners (with Examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 0 •
Published: May 24, 2018 As you start spending more and more time working on the Linux command line, you tend to learn utilities that aren't very frequently used. Once such tool is sum, which only offers two features: display checksum and block count for input files. In this short tutorial, we will quickly discuss the basics of sum using some easy to understand examples.
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Setup New User and SSH Key Auth. using Ansible on Ubuntu 18.04
Author: Muhammad Arul •
Tags: linux, server, shell, ubuntu •
Comments: 1 •
Published: May 23, 2018 Ansible is a simple automation tool that automates software applications deployment, cloud provisioning, and configuration management. It's a server orchestration tool that helps you to manage and control a large number of server nodes from single places called 'Control Machines'. In this tutorial, we will learn how to deploy a new user and enable the SSH Key-Based authentication using the automation tool Ansible.
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Linux tac Command Tutorial for Beginners (with Examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 0 •
Published: May 22, 2018 We've already discussed the Linux cat command in one of our earlier tutorials. As you may be aware, the cat command is mainly used for displaying file contents in output. However, what you may not be aware of is that there exists a command that does exactly opposite of what cat does. The tool in question is tac, and in this tutorial, we will discuss its basics using some easy to understand examples.
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Linux tail Command Tutorial for Beginners (5 Examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 0 •
Published: May 17, 2018 Sometimes you want to monitor what new information is being written to a file (think of log files), or for whatever reasons, want to access the last few lines of a file. Well, there's a command line utility that lets you do this in Linux, and it's call tail.
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Linux test Command Tutorial for Beginners (with Examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 0 •
Published: May 15, 2018 Sometimes, while working on the Linux command line, you might want to test certain things like integer values, or whether or not a file is of certain type? You'll be glad to know there's a built-in command line utility test that lets you do most of these comparisons and tests.
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Linux uname Command Tutorial for Beginners (8 Examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 0 •
Published: May 10, 2018 Regardless of whether you are a system admin, software developer, or a normal Linux user, you may find yourself in a situation where you need some system information like kernel release or version. Well, there exists a built-in command line utility - dubbed uname - that lets you do this.
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Linux w Command Tutorial for Beginners (5 Examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 0 •
Published: May 07, 2018 If you are new to Linux system administration, you should be aware of tools that help you in user management. One such utility is w, which shows info about users that are currently logged in to a system, including what they are doing. In this article, we will discuss this tool using some easy to understand examples.
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Linux wall Command Tutorial for Beginners (with Examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 1 •
Published: May 03, 2018 There are times when multiple users are logged in to a server computer, and you - the system/network admin - need to, say, restart the server to perform some maintenance task. Of course, the correct way is to inform all those who are logged in about the maintenance activity. Thankfully, Linux offers a built in command line utility for this purpose, the wall command.
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Linux watch Command Tutorial for Beginners (5 Examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 2 •
Published: May 01, 2018 Sometimes, while working on the Linux command line, you might want to execute a command repeatedly so as to track any change in output. Well, you'll be happy to know there exists a command line utility that lets you do this. The tool in question is Watch, and in this tutorial, we will discuss some of its basic features using some easy to understand examples.
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How to Clear Bash History on Linux
Author: Till Brehm •
Tags: linux, shell •
Comments: 1 •
Published: Apr 30, 2018 Sometimes you might want to hide the history of commands you typed in the shell on Linux. This is e.g. useful when you are building a server image to roll out multiple virtual machines. The command shown below will work on all Linux Distributions (CentOS, Debian, Ubuntu, etc).
