Articles by Himanshu Arora
About Himanshu Arora
Himanshu Arora has been working on Linux since 2007. He carries professional experience in system level programming, networking protocols, and command line. In addition to HowtoForge, Himanshu's work has also been featured in some of world's other leading publications including Computerworld, IBM DeveloperWorks, and Linux Journal.
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Linux cp command tutorial for beginners (8 examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 1 If you are new to Linux, it's worth knowing that command line is a very powerful tool, capable of doing almost all those tasks that you can do through the graphical interface. The Linux cp command provides you the power to copy files and directories through the command line. In this tutorial, we will discuss the basic usage of this tool using easy to understand examples.
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Software Defined Networking (SDN) - Architecture and role of OpenFlow
Author: Himanshu Arora •
Tags: linux, networking •
Comments: 1 In our previous article, we had a good overview of SDN as a technology, why it’s needed, and how IT industry is adopting it. Now, let’s get a layer deeper, and understand SDN’s architecture and the role of the Openflow protocol in the implementation of the technology.
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Linux clear command tutorial for beginners (3 examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 1 Sometimes, while working on the command line, you arrive at a point where there's too much text on the terminal screen, and none of that is relevant to you. So, in order to avoid distraction, you'd want to clear the terminal screen. Those new to the Linux command line may not know that there exists a dedicated command line utility that does this work for you.
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Software Defined Networking (SDN) explained for beginners
Author: Himanshu Arora •
Tags: linux, networking •
Comments: 2 Over the past few years, Software Defined Networking (SDN) has been a key buzz in the computer networking/IT industry. Today, more and more companies are discussing SDN to leverage it for their business and future growth plans.
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Linux comm command tutorial for beginners (5 examples)
Author: Himanshu Arora •
Tags: linux •
Comments: 0 The comm command in Linux lets users compare two sorted files line by line. In this tutorial, we will discuss this command line tool using easy to understand examples. The following examples should give you a nice idea about how the 'comm' tool works.
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Linux Uniq Command Tutorial for Beginners (10 examples)
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 2 The uniq command reports or even deletes repeated lines in a file. In this article, we will discuss uniq through easy to understand examples.
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How to use markers and perform text selection in Vim
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 5 When using GUI-based text/source code editors, some features are a given, such as selecting text. I mean, most of us won't even consider this a feature anymore. But that's not the case with command line based editors like Vim. Specifically for Vim, when only using keyboard, you'll have to learn certain commands in order to select text the way you want. In this tutorial we will discuss this feature as well as the 'marks' feature of Vim in detail.
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Understanding 7z command switches - part I
Author: Himanshu Arora •
Tags: linux, shell •
Comments: 4 7z is no doubt a feature-rich and powerful archiver (claimed to offer the highest compression ratio). Here at HowtoForge, we have already discussed how you can install and use it. But the discussion was limited to basic features that you can access using the 'function letters' the tool provides.
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How to let users securely edit files using sudoedit on Linux
Author: Himanshu Arora •
Tags: centos, debian, fedora, linux, opensuse, shell, ubuntu •
Comments: 5 Suppose you are a system administrator in a company where teams mostly work on Linux with limited privileges. Now imagine a situation where members of one of the teams - as part of some new work - need to frequently edit a file that requires superuser privileges. What would you do?
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How to perform pattern search in files using Grep
Author: Himanshu Arora •
Tags: centos, debian, fedora, linux, opensuse, shell, ubuntu •
Comments: 1 This article focuses on some advanced features of the grep command like case insensitive search, displaying certain non-matched lines with line containing matched string, print matched strings in grep, and to display the position of a match in grep.
