If you think that you can do Linux System administration without cut command, then you are absolutely right. However, mastering this fairly simple command line tool will give you a great advantage when it comes to the efficiency of your work on a user as well administration level. To simply put, cut command is one of many text-filtering command line tools that Linux Operation System has to offer. It filters standard STDIN from another command or input file and sends the filtered output to STDOUT.
commands
Learning Linux Commands: nice & renice
Introduction
User’s ability to attach a priority value to its own process upon execution determines whether you are being nice to your fellow users on the same system. Are you being nice or you simply abuse system resources for no apparent reason? In this article you will learn how to manage your processes in terms of how much processing power they consume and how to change a priority value of your processes using nice & renice Linux command. We will start with some basic theory about what is process, process scheduling, how to fork new process and then we move to nice command and explain how to change process priority value.
How to Use ADB Android Debug Bridge to Manage Your Android Mobile Phone
Mobile phones have evolved a lot over recent years, and we have seen several mobile-vs-desktop management solutions like Samsung DeX for Samsung Mobile phones, and only available for Windows 7 and 10 as well as Mac. As a non-Samsung or Linux user, one may feel left out. Not so! In fact, a whole lot more power can be provided by the ADB toolset from the Android developer team! This article will introduce you the same, and we have two followup articles which describe How to Mirror Your Android Mobile Screen to Linux and How to Remove Bloatware From Your Samsung Android Mobile Phone.
In this tutorial you will learn:
- How to install ADB on your Linux workstation
- How to connect your phone using a physical USB cable
- How to connect to your phone using ADB
- How to change the setup to enable wireless access to your phone via ADB
How to Mirror Your Android Mobile Screen to Linux
Using a screen of a remote computer is often using VNC (Virtual Network Computing), or other remote desktop solutions. These come in both commercial and open source flavors. But how do you go about mirroring, and using, your Android mobile phone to and from your Linux desktop?
It is all possible via ADB – the Android Debug Bridge, which is included in the stock Android SDK (Software Development Kit) and is available as an easy install on most modern Linux distributions. Setting up ADB and configuring is not the focus of this article, and you can find detailed instructions on how to do so in our How to Use ADB Android Debug Bridge to Manage Your Android Mobile Phone article.
In this tutorial you will learn:
- How to mirror your Android mobile phone screen to your Linux based workstation
- How to remotely control your Android mobile phone screen via ADB
- How to remote control your mobile phone via USB and via Wi-Fi
Introduction to the lsblk command
Lsblk is a very nice utility installed by default on practically all Linux distributions: we can use it to retrieve a vast range of information about all the block devices attached to the system. In this article we will see how it works and how to use it.
In this tutorial you will learn:
- How to use the lsblk utility to retrieve information about block devices
- What is the meaning of the columns displayed in the default utility output
- How to specify the columns to be displayed and format the output as json or as a list
- How to display information about a specific device.
Bash command line tips and tricks
The Bash command line provides nearly limitless power when it comes to executing nearly anything you want to do. Whether it is processing a set of files, editing a set of documents, handling big data, managing a system or automating a routine, Bash can do it all.
This tutorial is sure to arm you with the tools and methods you need to become a much more proficient Bash user. Even already advanced users will likely pickup something new and exciting.
Useful Bash command line tips and tricks examples – Part 2
In this series we are exploring various tips, tricks and Bash command line examples which will help you become a more advanced Bash user and coder. Bash provides a rich scripting and coding language which puts the power back in the hands of the user and developer. Bash also allows you to learn as you go along, thereby making it a more enjoyable experience. For the first article in our series, please see our article Useful Bash command line tips and tricks examples part 1.
In this tutorial series you will learn:
- Useful Bash command line tips, tricks and methods
- How to interact with the Bash command line in an advanced manner
- How to sharpen your Bash skills overall and become a more proficient Bash user
Useful Bash Command Line Tips and Tricks Examples – Part 4
Continuing our series on useful Bash command line tips and tricks, in today’s article, we will explore grepping only what you need, and start of with a primer on pwd and how to discover the path a script was started from.
In this tutorial you will learn:
- Useful Bash command line tips, tricks and methods
- How to interact with the Bash command line in an advanced manner
- How to sharpen your Bash skills overall and become a more proficient Bash user
Useful Bash Command Line Tips and Tricks Examples – Part 5
In this article, we will explore user input: for all those times you want to ask the user to ‘press enter to continue’, or to actually read a string of input and store it into a variable for later processing. We will also look at how to find manual pages for built-in commands which otherwise may not seem to be available.
In this tutorial you will learn:
- Useful Bash command line tips, tricks and methods
- How to interact with the Bash command line in an advanced manner
- How to sharpen your Bash skills overall and become a more proficient Bash user
Ubuntu 20.10 Download
In this Ubuntu 20.10 Download guide you will learn where to download and how to download Ubuntu 20.10 ISO image for Ubuntu, Kubuntu, Ubuntu Budgie, Ubuntu Studio, Xubuntu, Lubuntu, Kylin desktops and Ubuntu 20.10 Server.
How to take a screenshot on Manjaro
In this guide, we’ll be showing you how to take screenshots in Manjaro Linux. There are a few different utilities we can use to accomplish this task, and this article will ensure that you’re familiar with them.
In this tutorial you will learn:
- How to take a screenshot with Manjaro’s screenshot utilities
- How to use Flameshot for screenshots and annotations
- How to use Kazam to take screenshots and screencasts
Bash Background Process Management
There are many times when a Bash developer or user will want to run a process in the background, either from the command line or from inside a bash script, and then handle that same process again later. There are various command line tools which allow one to do so. Being able to start, manage and destroy background processes is a requirement for many more advanced level tasks, especially in the areas of advanced scripting and process control.
In this tutorial you will learn:
- How to start, handle and/or manage, and destroy background processes
- What command line tools are available to assist you with Bash process management
- Examples highlighting the use of background processes at the Bash command line
Bash Background Process Management