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 pgrep Command Tutorial for Beginners (10 Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 2You might already know about the grep command in Linux, which searches for a pattern, and then prints the matching text in output. What if the requirement is to apply this kind of processing to fetch select information about processes currently running in the system?
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Linux pinky Command Tutorial for Beginners (8 Examples)
Author: Himanshu Arora • Tags: linux, ubuntu • Comments: 0The finger command in Linux is a popular tool to fetch information related to system users. Pinky is a lightweight alternative that comes pre-installed (at least on Ubuntu).
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Linux vmstat Command Tutorial for Beginners (5 Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 1If you are looking for a command line utility that you can use to access information about processes, CPU activity, memory, and more, you'll be glad to know that vmstat does this for you.
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Linux printenv Command Tutorial for Beginners (with Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 1Environment variables play a major role in Linux. Most programs, whether command line based or GUI based, deal with environment variables in one way or the other. So naturally, there are tools that let you access environment variables from the command line. One such tool is printenv. In this tutorial, we will discuss printenv using some easy to understand examples.
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Linux mktemp Command Tutorial for Beginners (5 Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 4Creating temporary files or directories is a common task that many Linux command line users do. But there's a dedicated command line tool - dubbed mktemp - that lets you do this.
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Linux readlink and realpath Command Tutorial for Beginners (with Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 1In this tutorial, we will discuss the basics of realpath and readlink commands that are similar (if not same) in the sense that they display resolved symbolic links in output.
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Linux tcpdump Command Tutorial for Beginners (8 Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 2Everytime you open a webpage on your computer, data packets are sent and received on your network interface. Sometimes, analyzing these packets becomes important for many reasons. Thankfully, Linux offers a command line utility that dumps information related to these data packets in output.
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Linux shred Command Tutorial for Beginners (5 Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 1This tutorial shows how to delete data safely on Linux by using the shred command. All examples in this article have been tested on an Ubuntu and Debian, but they should work on any other Linux distribution as well.
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Linux vdir Command Tutorial for Beginners (8 Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 1Listing contents of a directory is one of the most basic tasks that users (both pro and noobs) find themselves involved in. The ls command is hands down the most popular tool used for this purpose. There are some alternatives. For example, there's a utility called vdir, basics of which we'll be discussing here.
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Linux whatis Command Tutorial for Beginners (5 Examples)
Author: Himanshu Arora • Tags: linux, shell • Comments: 2Man pages are one of the most useful resources when it comes to understanding command line utilities. A man page, however, contains a lot of details about the command. IIf you are looking for a short help text, the command whatis becomes handy.
