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Read command - The read command allows you to prompt for input and store it in a variable. shell allows to prompt for user input. Syntax: read varname [more vars] or read –p "prompt" varname [more vars] words entered by user are assigned to varname and “more vars” last variable gets rest of input line.

In Linux (Shell), there are two types of variable: (1) System variables - Created and maintained by Linux itself. This type of variable defined in CAPITAL LETTERS. (2) User defined variables (UDV) - Created and maintained by user. This type of variable defined in lower letters. Shell variables - var refers to the name, $var to the value - t = 100 #Sets var t to value 100 - echo ”$t = $t” #will print: $t = 100 - Remove a variable with unset var - Names begin with alpha characters and include alpha, numeric, or underscore

A shell script is a computer program designed to be run by the Unix shell, a command-line interpreter. The various dialects of shell scripts are considered to be scripting languages. A shell usually interprets a single line of input, but we can also create a file containing a number of lines of commands to be interpreted. This file is a program known as a shell script. The program can also contain control structures (if-then, loops). Shell scripts allow a sequence of commands to be executed automatically .

Linux is a computer operating system free for development and distribution, both commercially and non-commercially. There are times when you may spend hours doing a repetitive task. A person who knows command line can write a script in 10 minutes and if he has to repeat it, can do it in a second. So what is Command Line and why is it so popular? Command line applications provide us with numerous benefits which cannot be achieved with any of the available GUI applications. One can create scripts to automate work, and can go so much deeper into the system and explore things that would generally be not possible with GUI. This course is designed for beginners who are new to this operating system and have never installed or operated Ubuntu Linux. People thinking about being a Linux system administrator or engineer can use this as the perfect place to start learning the basics from. This is not restricted for these people, anyone who wants to optimize their tasks and make them simpler using ...

POSTGRESQL is an open-source, full-featured relational database.PostgreSQL is the most advanced open source relational database, MySQL did not have triggers, PostgreSQL did. In this tutorial we will see How to Install PostgreSQL 9.6 on Ubuntu 16.04 LTS. The same procedure can be used for installing PostgreSQL 9.6 on Ubuntu 14.04 LTS. Step 1: Install PostgreSQL $ sudo apt-get update $ sudo apt-get install postgresql postgresql-contrib Step 2: Connecting to PostgreSQL Ather the installation of PostgreSQL a user account called postgres created that is associated with the default Postgres role. In order log into to use Postgres account, we nee to give following command: $ sudo su - postgres $ psql

Download code for linux - In this post we will see How to install Visual Studio Code on Ubuntu Linux. VS Code runs on Mac, Linux, and Windows. See Requirements for the supported versions. VS Code is a free, open source editor.Visual Studio running on OS X and Linux for free? How to install Visual Studio Code on Ubuntu?

I this video I am going to show step-by-step how to install the CentOS 7 Linux distribution on VirtualBox for pure and open source virtualization of your testing and development environments. Create a New Virtual Machine (VM) with the Virtual Machine Wizard, choosing Linux for the OS Type and Red Hat or Red Hat (64 bit) for the Operating System. Memory should be at least 768MB for a graphical install to work. Next the virtual hard disk wizard will start. The OS disk should be at least 8GB. For a relatively full install, allocate at least 15GB, otherwise use all the defaults. Additional disk[s] can be added later if desired.

In this video I will show you how to install Ubuntu 16.04 LTS Desktop and VMware tools in VMware . You can use VMware Player which is free to personal use. This tutorial also helps if you install Ubuntu 16.04 LTS

I this video I am going to show , How to Install Fedora 25 LTS on VirtualBox in Windows 8 / Windows 10. Ubuntu is a most popular Linux-based operating system. Recently Fedora releases its newest version 25. VirtualBox is also a popular software for creating virtual machine available for Windows and Linux environment. Fedora 24, Fedora 23, Fedora 22 can also be installed in he same way. commands - - sudo dnf update kernel* - sudo dnf install kernel-devel-$(uname -r) kernel-headers-$(uname -r) gcc

Atom is opensource source code and text editor. Atom can be installed on Windows, Linux and OS X. Atom supports plugins written in Node.js and has embedded Git source control. Atom is developed by GitHub. Atom is build using web technologies and used as a desktop application. In this post we will see how to install Atom editor on your Ubuntu Linux system. Click to Find all commands - $ sudo add-apt-repository ppa:webupd8team/atom $ sudo apt-get update $ sudo apt-get install atom

Commands to install Jenkins 1 - apt-get install openjdk-7-jdk 2 - apt-get install nginx and visit for rest of the commands Jenkins is open source continuous integration server. Jenkins () is Easy to install, Easy to use, Multi-technology Multi-platform, Widely used, Extensible and Free tool for Continuous Integration.

in this video I am going to sho you How to install Kali Linux in Virtualbox : Step-by-step . This is A detailed guide on installing Kali Linux on VirtualBox. I am going to show How to Install Kali Linux 2016 + Guest Additions on VirtualBox. Install Kali linux 2.0 on Virtual Box Step by Step Install Kali LInux 2 in VirtualBox Installing Kali Linux 2016.1 on VirtualBox

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How to install Oracle Java JDK on Ubuntu Linux Error:Unable to run mksdcard SDK tool in ubuntu sudo apt-get install lib32z1 lib32ncurses5 lib32bz2-1.0 lib32stdc++6 Android Studio for Ubuntu Android studio installation on 14.04 - Ask Ubuntu How do you install Android Studio for Ubuntu 14.04 LTS Searches related to How to install Android Studio in Ubuntu how to open android studio in ubuntu how to install jdk in ubuntu how to install android studio in windows 7 android studio download how to install android studio in ubuntu using terminal how to uninstall android studio in ubuntu how to install android sdk in ubuntu how to install android studio in windows 8

sudo apt-add-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer ensure your JAVA_HOME variable has been set to: export JAVA_HOME=/usr/lib/jvm/java-8-oracle How can I install Sun/Oracle's proprietary Java JDK 6/7/8 or JRE? How to install Oracle Java on Ubuntu 14.04? Easy Ways to Install Oracle Java JDK on Ubuntu Linux How To Install Java on Ubuntu with Apt-Get Searches related to How to install Oracle Java JDK on Ubuntu ubuntu install jdk 8 ppa:webupd8team/java unable to locate package oracle-java8-installer download java for ubuntu ubuntu set java_home openjdk 8 ubuntu update java ubuntu uninstall java ubuntu

1 Reboot your computer. 2 Hold Shift during boot to start GRUB menu. 3 Select advanced options for ubuntu 4 Select the option with recovery mode 5 Select root and press enter 6 Give command - mount -n -o remount,rw / 7 Press Enter 8 Give command - passwd your_username 9 Give new password 10 reboot Searches related to How to Reset Root Password In Ubuntu how to set root password in ubuntu how to reset root password in ubuntu using grub forgot ubuntu password how to change root password in ubuntu create root password ubuntu ubuntu change password terminal start ubuntu in recovery mode linux root password

What command do I need to unzip/extract a .tar.gz file? installation - How to extract a tar.gz file How to unzip .tgz file using the terminal? How to open a tar file in Unix or Linux How to Create & Extract tar.gz and tar.bz2 Files in Linux

Download code for linux - Visual Studio running on OS X and Linux for free? How to install Visual Studio Code on Ubuntu? Microsoft Launches Visual Studio Code Microsoft unveils Visual Studio Code for Windows, Mac and Linux. Trying Out Microsoft Visual Studio Code On Linux Error while installing Visual Studio Code on Ubuntu 14.04 How to Install Visual Studio Code in Ubuntu

Install Git with Apt : sudo apt-get update sudo apt-get install git Set Up Git: git config --global user.name "Your Name" git config --global user.email "youremail@domain.com" Searches related to how to install git on ubuntu how to install git on linux how to use git on ubuntu github setup git on ubuntu ubuntu git package setup git server ubuntu ubuntu git clone git-core Searches related to github on ubuntu mac os install git how to use github ubuntu how to setup github how to use github linux github generate keys git setup linux git install git bash

install Oracle Java by following commands $ sudo add-apt-repository ppa:webupd8team/java $ sudo apt-get update $ sudo apt-get install oracle-java8-installer Searches related to intellij idea on ubuntu intellij idea install ubuntu intellij idea setup intellij idea ide how to install intellij idea on linux ubuntu intellij shortcut intellij linux no jdk found to run idea intellij idea ubuntu ppa