<p><a href="https://getcomposer.org/" target="_blank" rel="noreferrer noopener" aria-label=" (opens in a new tab)">Composer</a> is a dependency manager for PHP (similar to npm for Node.js or pip for Python). Composer will pull in all the required PHP packages your project depends on and manage them for you.</p>



<p>In this tutorial, we’ll show you how to install and use Composer on an Ubuntu 18.04 machine. The same steps can be used for Ubuntu 16.04.</p>



<h2 id="prerequisites">Prerequisites</h2>



<p>Before continuing with this tutorial, make sure you are logged in as a&nbsp;user with sudo privileges&nbsp;and you have&nbsp;PHP installed on your Ubuntu 18.04&nbsp;system.</p>



<h2 id="installing-php-composer">Installing PHP Composer</h2>



<p>If you are in a hurry and you don’t want to verify the file integrity scroll down to the&nbsp;<strong>Installing Composer - Quick Way</strong>&nbsp;section.</p>



<p>To install Composer on your Ubuntu system, perform the following steps:</p>



<p><strong>01. Before downloading and installing Composer, first update the packages index and install the necessary requirements:</strong></p>



<pre class="wp-block-code"><code>sudo apt update
sudo apt install wget php-cli php-zip unzip</code></pre>



<p><strong>02. Now that we have php cli installed on our machine, we can download the composer installer with:</strong></p>



<pre class="wp-block-code"><code>php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"</code></pre>



<p>The command above will download the&nbsp;<code>composer-setup.php</code>&nbsp;file in the current working directory.</p>



<p><strong>03. Next, we need to verify the data integrity of the script by comparing the script </strong><code><strong>SHA-384</strong></code><strong> hash with the latest installer hash found on the <a href="https://composer.github.io/pubkeys.html" target="_blank" rel="noreferrer noopener" aria-label=" (opens in a new tab)">Composer Public Keys / Signatures</a> page.</strong></p>



<p>We will use the following&nbsp;wget command&nbsp;to download the expected signature of the latest Composer installer from the Composer’s Github page and store it in a variable named&nbsp;<code>HASH</code>:</p>



<pre class="wp-block-code"><code>HASH="$(wget -q -O - https://composer.github.io/installer.sig)"</code></pre>



<p>Now run the following command to verify that the installation script is not corrupted:</p>



<pre class="wp-block-code"><code>php -r "if (hash_file('SHA384', 'composer-setup.php') === '$HASH') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"</code></pre>



<p>If the hashes match, you will see the following output:</p>



<pre class="wp-block-code"><code>Output:
Installer verified</code></pre>



<p>If the hashes don’t match you will see&nbsp;<code>Installer corrupt</code>. In this case you will need to redownload the Composer installation script and double check the value of the&nbsp;<code>$HASH</code>&nbsp;variable with&nbsp;<a href="https://linuxize.com/post/echo-command-in-linux-with-examples/"><code>echo $HASH</code></a>. Once the installer is verified, you can continue with the next step.</p>



<p><strong>04. The following command will install Composer in the </strong><code><strong>/usr/local/bin</strong></code><strong>directory:</strong></p>



<pre class="wp-block-code"><code>sudo php composer-setup.php --install-dir=/usr/local/bin --filename=composer</code></pre>



<pre class="wp-block-code"><code>Output
All settings correct for using Composer
Downloading...

Composer (version 1.8.5) successfully installed to: /usr/local/bin/composer
Use it: php /usr/local/bin/composer</code></pre>



<p>The&nbsp;<code>composer</code>&nbsp;is installed as a system-wide command and it will be available for all users.</p>



<p><strong>05. The last step is to verify the installation:</strong></p>



<pre class="wp-block-code"><code>$ composer</code></pre>



<p>The command above, will print the Composer’s version, commands and arguments.</p>



<pre class="wp-block-code"><code>Output
______
/ ____/___  ____ ___  ____  ____  ________  _____
/ /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
                    /_/
Composer version 1.8.5 2019-04-09 17:46:47

Usage:
    command [options] [arguments]</code></pre>

Composer is a dependency manager for PHP (similar to npm for Node.js or pip for Python). Composer will pull in all the required PHP packages your...

How To Install and Use PHP Composer on Ubuntu 16/18/19 - TCMHACK

How To Install and Use PHP Composer on Ubuntu 16/18/19

<p><a href="https://www.google.com/chrome/">Google Chrome</a>&nbsp;is the most widely used web browser in the world. It is fast, easy to use and secure browser built for the modern web.</p>

<p>Chrome is not an open source browser and it is not included in the Ubuntu repositories. Google Chrome is based on&nbsp;<a href="https://www.chromium.org/">Chromium</a>, an open-source browser which is available in the default Ubuntu repositories.</p>

<p>In this tutorial, we&rsquo;ll show you how to install Google Chrome web browser on Ubuntu 18.04. The same instructions apply for Ubuntu 16.04 and any other Debian based distribution, including Debian, Linux Mint and Elementary OS.</p>

<h3 id="prerequisites">Prerequisites</h3>

<p>Before continuing with this tutorial, make sure you are logged in as a&nbsp;user with sudo privileges.</p>

<h3 id="installing-google-chrome-on-ubuntu">Installing Google Chrome on Ubuntu</h3>

<p>To install Google Chrome on your Ubuntu system, follow these steps:</p>

<h4 id="1-download-google-chrome">1. Download Google Chrome</h4>

<p>Open your terminal either by using the&nbsp;<code>Ctrl+Alt+T</code>&nbsp;keyboard shortcut or by clicking on the terminal icon.</p>

<p>Download the latest Google Chrome&nbsp;<code>.deb</code>&nbsp;package with&nbsp;<strong>wget</strong>:</p>

<pre class="wp-block-code"><code>wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb</code></pre>

<h4 id="2-install-google-chrome">2. Install Google Chrome</h4>

<p>Installing packages on Ubuntu requires sudo privileges. Make sure you are running the following command as a user with sudo privileges.</p>

<p>Install the Google Chrome&nbsp;<code>.deb</code>&nbsp;package by typing:</p>

<pre class="wp-block-code"><code>sudo dpkg -i google-chrome-stable_current_amd64.deb</code></pre>

<p>You will be asked to enter your user password. The output should look something like the following:</p>
<p><img src="../../../../uploads/1744771705105-ubuntu-install-google-chrome-1024x214.jpg" alt="" width="1024" height="214"></p>

<h3 id="starting-google-chrome">Starting Google Chrome</h3>

<p>Now that Google Chrome is installed on your Ubuntu system you can start it either from the command line by typing&nbsp;<code>google-chrome</code>&nbsp;or by clicking on the Google Chrome icon (<code>Activities -&gt; Google Chrome</code>):</p>
<p><img src="../../../../uploads/1744771743215-ubuntu-open-google-chome-1024x768.jpg" alt="" width="1024" height="768"></p>

<p>When you start Google Chrome for the first time, a window like the following will appear asking if you want to make Google Chrome your default browser and to send usage statistic and crash reports to Google:</p>
<p><img src="../../../../uploads/1744771792181-ubuntu-google-chome-default-browser-1024x768.jpg" alt="" width="1024" height="768"></p>

<p>Select according to your preference, and click&nbsp;<code>OK</code>&nbsp;to proceed.</p>

<p>Google Chrome will open and you&rsquo;ll see the default Chrome welcome page.</p>
<p><img src="../../../../uploads/1744771831407-ubuntu-google-chome-welcome-page-1024x768.jpg" alt="" width="1024" height="768"></p>

<p>From here you can sign-in to Chrome with your Google Account to sync your bookmarks, history, passwords and other settings on all your devices.</p>

<h3 id="updating-google-chrome">Updating Google Chrome</h3>

<p>During the installation process, the official Google repository will be added to your system. You can use the&nbsp;<strong>cat command</strong>&nbsp;to verify the file contents:</p>

<pre class="wp-block-code"><code>cat /etc/apt/sources.list.d/google-chrome.list</code></pre>

<pre class="wp-block-code"><code>### THIS FILE IS AUTOMATICALLY CONFIGURED ###
# You may comment out this entry, but any other modifications may be lost.
deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main</code></pre>

<p>This ensures that your Google Chrome installation will be updated automatically when a new version is released through your desktop standard Software Update tool.</p>

<h4 id="conclusion">Conclusion</h4>

<p>In this tutorial, we&rsquo;ve shown you how to install Google Chrome on your Ubuntu 18.04 desktop machine.</p>

<p>If you&rsquo;ve previously used a different browser, like Firefox,&nbsp;<strong>Chromium</strong>&nbsp;or&nbsp;<strong>Opera</strong>, you can import your bookmarks and settings into Chrome.</p>

<p>Feel free to leave a comment below.</p>

Google Chrome&nbsp;is the most widely used web browser in the world. It is fast, easy to use and secure browser built for the modern web...

How to Install Google Chrome Web Browser on Ubuntu 18.04 - TCMHACK

How to Install Google Chrome Web Browser on Ubuntu 18.04

<p><a href="https://www.getpostman.com/" target="_blank" rel="noopener">Postman</a>&nbsp;is a complete API development environment that helps you manage your APIs in every stage of development from designing and testing, to publishing API documentation and monitoring. Postman started as a&nbsp;<a href="../../../../blog/how-to-install-google-chrome-web-browser-on-ubuntu-18-04/">Chrome browser</a>&nbsp;extension and quickly become one of the most used API tools by developers all over the world.</p>

<p>Postman is available as a native app (built on Electron) for all major operating systems including macOS, Linux, and Windows. Although it is possible to install and use Postman as a Chrome app, support for the Postman Chrome app is being deprecated.</p>

<p>This tutorial explains how to install Postman on Ubuntu 18.04. The same instructions apply for Ubuntu 16.04 and any Ubuntu-based distribution, including Linux Mint, Kubuntu, and Lubuntu.</p>

<h3 id="prerequisites">Prerequisites</h3>

<p>Before continuing with this tutorial, make sure you are logged in as a&nbsp;user with sudo privileges.</p>

<h3 id="installing-postman">Installing Postman</h3>

<p>The easiest way is to install Postman on Ubuntu 18.04 is by using the <a href="https://snapcraft.io/" target="_blank" rel="noopener">snappy</a> packaging system.</p>

<p>Open your terminal by pressing&nbsp;<code>Ctrl+Alt+T</code>&nbsp;and install the Postman snap package, by typing:</p>

<pre class="wp-block-code"><code>sudo snap install postman</code></pre>

<p>The download may take some time depending on the speed of your connection. Once installed, the following output will be displayed:</p>

<pre class="wp-block-code"><code>postman 6.7.1 from 'postman-inc' installed</code></pre>

<p>Alternatively, you can install Postman using the Ubuntu Software Center. Simply search for Postman and click install:</p>
<p><img src="../../../../uploads/1744772114562-install-postman-ubuntu-software-center-1024x768.jpg" alt="" width="1024" height="768"></p>

<h3 id="starting-postman">Starting Postman</h3>

<p>Now that Postman is installed on your Ubuntu system you can start it by clicking on the Postman icon (<code>Activities -&gt; Postman</code>):</p>
<p><img src="../../../../uploads/1744772160941-ubuntu-postman-start-1024x768.jpg" alt="" width="1024" height="768"></p>

<p>When you start Postman for the first time, a window like the following will appear asking you to login or create a new account:</p>
<p><img src="../../../../uploads/1744772192374-ubuntu-postman-login-1024x768.jpg" alt="" width="1024" height="768"></p>

<p>If you create an account, you will be able to organize your work in Workspaces, create backups, and sync your data across multiple devices. If you don&rsquo;t want to log in simply click on &ldquo;Skip signing in and take me straight to the app&rdquo;.</p>

<p>To illustrate how Postman works, we will send a simple Get request to a&nbsp;<a href="https://reqres.in/" target="_blank" rel="noopener">hosted REST API</a>&nbsp;and receive a JSON response containing users list.</p>

<p>On the &ldquo;Untitled Request tab&rdquo; enter&nbsp;<code>https://reqres.in/api/users</code>, leave the request type as&nbsp;<code>GET</code> and click on the SEND button. On success, the response will return a JSON object containing an array of users.</p>
<p><img src="../../../../uploads/1744772253622-ubuntu-postman-example-1024x768.jpg" alt="" width="1024" height="768"></p>

<p>The&nbsp;<a href="https://learning.getpostman.com/" target="_blank" rel="noopener">Postman Learning Center</a>&nbsp;should be a good starting point for learning how to create Postman workspaces, collections, environments and more.</p>

<h4 id="conclusion">Conclusion</h4>

<p>You have successfully install Postman on your Ubuntu 18.04 machine. You can now explore your new API tool and start working on your projects.</p>

<p>If you have any question, please leave a comment below.</p>

Postman is a complete API development environment that helps you manage your APIs in every stage of development from designing and testing...

How to Install Postman on Ubuntu 18.04/19.04 - TCMHACK

How to Install Postman on Ubuntu 18.04/19.04

<p><strong>Node.js</strong>&nbsp;is a platform built on Chrome&rsquo;s JavaScript runtime for easily building fast, scalable network applications. Latest version&nbsp;<a href="https://deb.nodesource.com/setup_12.x" target="_blank" rel="noreferrer noopener">node.js ppa</a>&nbsp;is maintaining by its official website. We can add this PPA to your&nbsp;<strong>Ubuntu 19.04, 18.04 LTS, 16.04 LTS (Trusty Tahr) and 14.04 LTS (Xenial Xerus)</strong>&nbsp;systems and install node.js on Linux VPS with easy commands.</p>

<p>To install specific nodejs version, Visit our tutorial&nbsp;<a href="../../../../blog/how-to-install-and-manage-node-js-via-nvm/">Install Specific Nodejs Version with NVM</a>.</p>

<h2>Step 1 &ndash; Add Node.js PPA</h2>

<p>Node.js package is available in LTS release and the current release. It&rsquo;s your choice to select which version you want to install on the system as per your requirements. Let&rsquo;s add the PPA to your system to install Nodejs on Ubuntu.</p>

<p><strong>Use Current Release:</strong>&nbsp;At te last update of this tutorial, Node.js 12 is the current Node.js release available.</p>

<pre class="wp-block-preformatted">sudo apt-get install curl python-software-properties
curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
</pre>

<p><strong>Use LTS Release :</strong>&nbsp;At the last update of this tutorial, Node.js 10.15.3 is the LTS release available.</p>

<pre class="wp-block-preformatted">sudo apt-get install curl python-software-properties
curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
</pre>

<p>For this tutorial,&nbsp;<strong>I am using the latest current release</strong>&nbsp;and added their PPA to my system.</p>

<h2>Step 2 &ndash; Install Node.js on Ubuntu</h2>

<p>You can successfully add Node.js PPA to Ubuntu system. Now execute the below command install Node on and Ubuntu using apt-get. This will also install NPM with node.js. This command also installs many other dependent packages on your system.</p>

<pre class="wp-block-preformatted">sudo apt-get install nodejs
</pre>

<h2>Step 3 &ndash; Check Node.js and NPM Version</h2>

<p>After installing node.js verify and check the installed version. You can find more details about current version on node.js&nbsp;<a href="https://nodejs.org/download/" target="_blank" rel="noreferrer noopener">official website</a>.</p>

<pre class="wp-block-preformatted"><strong>node -v </strong>

v12.1.0
</pre>

<p>Also, check the npm version</p>

<pre class="wp-block-preformatted"><strong>npm -v </strong>

v12.3.1
</pre>

<h2>Step 4 &ndash; Create Demo Web Server (Optional)</h2>

<p>This is an optional step. If you want to test your node.js install. Let&rsquo;s create a web server with &ldquo;Hello World!&rdquo; text. Create a file&nbsp;<strong>server.js</strong></p>

<pre class="wp-block-preformatted"><strong>vim server.js</strong>
</pre>

<p>and add the following contentserver.js</p>

<pre class="wp-block-preformatted">var http = require('http');
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
}).listen(3000, "127.0.0.1");
console.log('Server running at http://127.0.0.1:3000/');
</pre>

<p>Now start the Node application using the command.</p>

<pre class="wp-block-preformatted"><strong>node server.js</strong>

debugger listening on port 5858
Server running at http://127.0.0.1:3000/
</pre>

<p>You can also start the application with debugging enabled with the following commands.</p>

<pre class="wp-block-preformatted"><strong>node --inspect server.js</strong>

Debugger listening on ws://127.0.0.1:9229/8976a32b-cf99-457c-85fb-e7288cbadac6
For help see https://nodejs.org/en/docs/inspector
Server running at http://127.0.0.1:3000/
</pre>

<p>The web server has been started on port 3000. Now access&nbsp;<strong>http://127.0.0.1:3000/</strong>&nbsp;URL in browser. Now you will need to configure a front-end server for your app.</p>

<ul>
<li>Read:&nbsp;<a href="../../../../blog/how-to-setup-nginx-as-frontend-server-for-node-js/">How to Setup Nginx as Frontend Server for Node.js</a></li>
</ul>

Node.js is a platform built on Chrome’s JavaScript runtime for easily building fast, scalable network applications.

How to Install Latest Node.js and NPM on Ubuntu with PPA - TCMHACK

How to Install Latest Node.js and NPM on Ubuntu with PPA

<p>NGINX is a powerful and widely used for web server. It also used as frontend proxy server for multiple web application servers runs behind this. This tutorial will help you to setup your Nginx server as fronted proxy server for your Node.js application.</p>

<h2>1. Install Node.js</h2>

<p>First install the required packages for node.js installation and add PPA of nodejs available on launchpad. Afer that install nodejs with following commands.</p>

<pre class="wp-block-preformatted">$ sudo apt-get install python-software-properties python g++ make
$ sudo add-apt-repository ppa:chris-lea/node.js
$ sudo apt-get update
$ sudo apt-get install nodejs
</pre>

<h2>2. Install Nginx</h2>

<p>Now install Nginx web server using apt-get. Nginx is available under default repositories.</p>

<pre class="wp-block-preformatted">$ sudo apt-get install nginx
</pre>

<h2>4. Create Test Node Server</h2>

<p>Now create a test node server app and run it on port 3000 on host 127.0.0.1. To create a node server create file&nbsp;<strong>~/MyApp/myapp.js</strong>&nbsp;.</p>

<pre class="wp-block-preformatted">$ cd ~/MyApp/
$ vi myapp.js
</pre>

<p>and add following content in javascript file.</p>

<pre class="wp-block-preformatted">var http = require('http');

http.createServer(function (req, res) {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.end('Hello Worldn');
}).listen(3000, "127.0.0.1");
console.log('Server running at http://127.0.0.1:3000/');

</pre>

<p>Now use the following command to start nodejs in background</p>

<pre class="wp-block-preformatted">$ node myapp.js &amp;
</pre>

<p>and access this in browser. You will see result like below screenshot.</p>
<p><img src="../../../../uploads/1744772815532-nginx-with-nodejs-1.png" alt="" width="621" height="268"></p>
<h3>4. Configure NGINX</h3>

<p>After starting a demo server with node.js. Now start configuration with Nginx. Create a virtual host configuration file for your domain under<strong>&nbsp;/etc/nginx/conf.d/</strong>&nbsp;directory.</p>

<pre class="wp-block-preformatted">$ sudo vim /etc/nginx/conf.d/example.com.conf
</pre>

<p>and add the following content.</p>

<pre class="wp-block-preformatted">upstream myapp {
    server 127.0.0.1:3000;
    keepalive 8;
}

# the nginx server instance
server {
    listen 0.0.0.0:80;
    server_name example.com www.example.com;
    access_log /var/log/nginx/example.com.log;

    location / {
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_set_header X-NginX-Proxy true;

      proxy_pass http://myapp/;
      proxy_redirect off;
    }
 }

</pre>

<p>After making all configuration, let&rsquo;s restart Nginx web server using following command.</p>

<pre class="wp-block-preformatted">$ sudo /etc/init.d/nginx restart
</pre>

<h2>5. Verify Setup</h2>

<p>Now access your server using domain name, you will see the same page shows on&nbsp;<strong><a href="http://127.0.0.1:3000/">http://127.0.0.1:3000/</a></strong></p>
<p><strong><img src="../../../../uploads/1744772851450-nginx-with-nodejs-2.png" alt="" width="621" height="268"></strong></p>

NGINX is a powerful and widely used for web server. It also used as frontend proxy server for multiple web application servers runs behind this. ...

How to Setup Nginx as Frontend Server for Node.js - TCMHACK

How to Setup Nginx as Frontend Server for Node.js

<p><a href="https://github.com/creationix/nvm" target="_blank" rel="noreferrer noopener">NVM</a>&nbsp;is known as Node Version Manager, Similarily to RVM (Ruby Version Manager) for Ruby language. NVM provides an option for easy installation of Node.js. You can also install specific Node.js version or multiple Node.js versions on the same system using nvm and use the required version for application. This tutorial will help you to&nbsp;<strong>Install and Manage Node.js using NVM</strong>.</p>



<p>The default NVM installs under current users home directory, So nvm installation with one user will not be accessible to another user. Windows users can visit our other tutorial to install Nodejs on Windows system.</p>



<h2>Step 1 – Install NVM</h2>



<p>First of all, You need to install NVM on your system. A bash script is available to install nvm on your system. Use the following command to install NVM on your Linux system.</p>



<pre class="wp-block-preformatted">curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash
</pre>



<p>Reload system environment using this command. It will set the required environment variables to use nvm on the system.</p>



<pre class="wp-block-preformatted">source ~/.profile     ## Debian based systems 
source ~/.bashrc      ## CentOS/RHEL systems 
</pre>



<h2>Step 2 – Find Available Node.js Version</h2>



<p>At this point, you have installed nvm on your system for the current user. Now find out the available version of Node.js to install. Use&nbsp;<code>ls-remote</code>&nbsp;option to list versions.</p>



<pre class="wp-block-preformatted">nvm ls-remote
</pre>



<p>You will see a long list of available versions.</p>



<pre class="wp-block-preformatted">  ...
  ...
       v10.12.0
       v10.13.0   (LTS: Dubnium)
       v10.14.0   (LTS: Dubnium)
       v10.14.1   (LTS: Dubnium)
       v10.14.2   (LTS: Dubnium)
       v10.15.0   (Latest LTS: Dubnium)
        v11.0.0
        v11.1.0
        v11.2.0
        v11.3.0
        v11.4.0
        v11.5.0
        v11.6.0
        v11.7.0
        v11.8.0
</pre>



<h2>Step 3 – Node.js Installation with NVM</h2>



<p>Now install the node.js version you need to use for running node.js application. Below command will install node.js&nbsp;<strong>v8.10.0</strong>&nbsp;the LTS release on your system.</p>



<pre class="wp-block-preformatted">nvm install v10.15.0
</pre>



<p>You can have also installed the latest version of Node.js.</p>



<pre class="wp-block-preformatted">nvm install v11.8.0
</pre>



<p>Repeat the above command with the different-2 node.js versions to install multiple versions of node.js on your system.</p>



<h2>Step 4 – Set Node.js Default Version</h2>



<p>As you have installed multiple node.js versions, You can select the specific version of node.js as default version used by system and load in the environment. Use below command to list currently installed version and default set version.</p>



<pre class="wp-block-preformatted"><strong>nvm list</strong>

       v10.15.0
        v11.8.0
-&gt;       system
node -&gt; stable (-&gt; v11.8.0) (default)
stable -&gt; 11.8 (-&gt; v11.8.0) (default)
iojs -&gt; N/A (default)
unstable -&gt; N/A (default)
lts/* -&gt; lts/dubnium (-&gt; v10.15.0)
lts/argon -&gt; v4.9.1 (-&gt; N/A)
lts/boron -&gt; v6.16.0 (-&gt; N/A)
lts/carbon -&gt; v8.15.0 (-&gt; N/A)
lts/dubnium -&gt; v10.15.0
</pre>



<p>You can see that Node.js version 11.8.0 is set as the default version. You can change the default Node.js version. Below command will set 10.15.0 as default Node.js version.</p>



<pre class="wp-block-preformatted">nvm use v10.15.0
</pre>



<p>Now verify current active version of node.js</p>



<pre class="wp-block-preformatted">node --version

v10.15.0
</pre>



<h2>Step 5 – Run Applition with Specific Version</h2>



<p>If you have multiple node.js applications on your system and want to run each with a specific version of node.js. NVM provides you an option to use node.js version for running any application. For example</p>



<pre class="wp-block-preformatted">nvm run v10.15.0 app.js
</pre>



<h2>Step 6 – Remove Unused Node.js Version</h2>



<p>This command will provide a list of installed versions of node.js on your system.</p>



<pre class="wp-block-preformatted">nvm list
</pre>



<p>Now remove any version installed on your system using the following command. Below command will remove Node.js version 10.15.0 from your system.</p>



<pre class="wp-block-preformatted">nvm remove v10.15.0</pre>

NVM&nbsp;is known as Node Version Manager, Similarily to RVM (Ruby Version Manager) for Ruby language. NVM provides an option for easy installati...

How to Install and Manage Node.js via NVM - TCMHACK

How to Install and Manage Node.js via NVM

<p>If you have just installed <strong>phpmyadmin</strong> and unable to login with <strong>root</strong> user. Then you're at right place so let's start now.</p>

<p><strong><em>The main issue behind it because of MySql 5.7 by default allow to connect with socket.</em></strong></p>

<pre class="wp-block-code"><code>Access denied for user 'root'@'localhost'</code></pre>

<h2>Follow the below steps to fix this issue.</h2>

<h4>Step 1: Run the mySQL with root access in linux/ubuntu terminal.</h4>

<pre class="wp-block-code"><code>sudo mysql</code></pre>

<h4>Step 2: Get all the available users:</h4>

<pre class="wp-block-code"><code>SELECT user,authentication_string,plugin,host FROM mysql.user;</code></pre>

<p><strong>Output:</strong></p>
<p><strong><img src="../../../../uploads/1744773321846-screenshot-from-2019-05-25-17-25-55.png" alt="" width="796" height="159"></strong></p>

<h4>Step 3: Update the values in the table with command :</h4>

<pre class="wp-block-code"><code>ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'Current-Root-Password';</code></pre>

<pre class="wp-block-code"><code>FLUSH PRIVILEGES;</code></pre>

<h4>Step 4: Run the select command again and you'll see it has changed:</h4>
<p><img src="../../../../uploads/1744773366495-screenshot-from-2019-05-25-17-26-27.png" alt="" width="794" height="150"></p>

<p>And that's it. You can run this process after running and completing the&nbsp;<code>sudo mysql_secure_installation</code>&nbsp;command.</p>

If you have just installed phpmyadmin and unable to login with root user.  Then you're at right place so let's start now.

[Fixed]: Access denied for user 'root'@'localhost' - TCMHACK

[Fixed]: Access denied for user 'root'@'localhost'

<p>Microsoft&nbsp;<a href="https://github.com/Microsoft/Terminal" target="_blank" rel="noreferrer noopener" aria-label=" (opens in a new tab)">released</a>&nbsp;the source code of a new Windows Terminal application today featuring multi-tab support, improved font rendering, and more.</p>

<p>The company&nbsp;<a href="https://devblogs.microsoft.com/commandline/introducing-windows-terminal/" target="_blank" rel="noreferrer noopener">plans</a>&nbsp;to add Windows Terminal to the Microsoft Store for Windows 10 devices soon to make it available to more users.</p>

<p>Windows Terminal won't replace any command line interface of the Windows operating system, at least not in the near future. Microsoft positions it as a new modern interface that developers and administrators may use instead of the command line interfaces that are included in the Windows operating system.</p>

<p>The decision to create a new Terminal application for Windows was made after it became clear that the Windows console host, conhost.exe, could not be used to implement many of the features that Microsoft and the community wanted.</p>

<h3>Windows Terminal</h3>
<p><img src="../../../../uploads/1744774142548-windows-terminal-screenshot-1024x668.jpg" alt="" width="1024" height="668"></p>

<p>One of the big features of the new Windows Terminal application is multi-tab support. You may remember that Microsoft planned to introduce support for tabs natively to the Shell in the Windows 10 operating system but&nbsp;decided to remove&nbsp;the feature that it&nbsp;called Sets&nbsp;again from development builds.</p>

<p>Sets allowed anyone&nbsp;to combine multiple application windows in a single container for easier handling and manageability.</p>

<p>Windows Terminal's tab support feature adds options to launch multiple different terminals from a single command line interface. You can use it to run PowerShell, the Command Prompt, and any installed Linux Terminal, and to switch between the terminals with just a click on a tab in the program window.</p>

<p>The new terminal application is fully backwards compatible with existing solutions.</p>

<figure><iframe style="width: 679px; height: 382px;" title="YouTube video player" src="https://www.youtube.com/embed/8gw0rXPMMPE?si=3N0D4HMxVjnS1bp_" width="679" height="382" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="allowfullscreen" referrerpolicy="strict-origin-when-cross-origin"></iframe></figure>

<p>Microsoft notes that Windows Terminal uses a GPU accelerated DirectWrite/DirectX-based text rendering engine. It paves the way for using any text character, symbol, emoji, ligatures, or glyphs installed on the device next to improved text output and rendering improvements.</p>
<p><img src="../../../../uploads/1744774228185-console-output.png" alt="" width="318" height="236"></p>

<p>Microsoft created a new monospaced font for Windows Terminal that includes programming ligatures and will be open sourced as well.</p>

<p>Windows Terminal will provide users with customization and configuration options. Settings are stored in structured text files so that users may tinker with the settings directly. One interesting feature is the ability to configure each Terminal individually.</p>

<blockquote class="wp-block-quote">
<p>These profiles can have their own combination of font styles and sizes, color themes, background blur/transparency levels, etc. You can now create your own custom-styled Terminal that is personalized to your unique taste!</p>
</blockquote>

Microsoft released the source code of a new Windows Terminal application today featuring multi-tab support, improved font rendering, and more...

Microsoft unveils new open source Windows Terminal - TCMHACK

Microsoft unveils new open source Windows Terminal

<p><strong>The image above this line of waffle depicts the official mascot design for the upcoming release of&nbsp;<a href="../../../../ubuntu-19-04-release-date-planned-features-updated/">Ubuntu 19.04</a>&nbsp;(due mid April).</strong></p>

<p>With Ubuntu 19.04&nbsp;named Disco Dingo&nbsp;the companion artwork is (naturally) designed accordingly.</p>

<p>The logo is made up of a line-art a dingo &mdash; a type wild Australian dog &mdash; staring upwards (or howling? Can&rsquo;t decide) whilst sporting a snazzy pair of over-ear headphones (because, presumably, he&rsquo;s also a DJ?).</p>

<p>Confused? Don&rsquo;t be.</p>

<h4>What is this artwork for?</h4>

<p>Each release of Ubuntu gets an alliterative nickname composed of an adjective and an animal (or creature). This tradition means each version of the OS arrives bearing its own distinct personality and design.</p>

<p>To help promote/brand each release the design folks at Canonical typically prepare a new desktop wallpaper and a new official mascot image.</p>

<p>These help to add a splash of flavour to what can often be a dry, formal release cycle.</p>

<p>This latest design was revealed by Canonical on their social media pages, with this trippy gif serving as way of introduction:</p>
<p><img src="../../../../uploads/1744775791876-disco-dingo-ubuntu-gif-1.gif" alt="" width="840" height="572"></p>
<h3>The Dingo Du Jour</h3>

<p>Design wise, the new&nbsp;<em>Disco Dingo</em>&nbsp;mascot has strong echos of&nbsp;polygon art&nbsp;and those&nbsp;synthwave/neon 80s style designs that were all the rage a few years back.</p>

<p>In fact, if you drop the logo on top a synth-wave wallpaper and it pops into life:</p>
<p><img src="../../../../uploads/1744775828546-synth-dingo-750x427.jpg" alt="" width="750" height="427"></p>
<p>Having gone to the effort of demoing that it won&rsquo;t surprise you to learn that &nbsp;I am a fan of this logo.</p>

<p>Heck of a big fan, in fact.</p>

<p>After six months of staring at the comforting curves of the circular&nbsp;Cosmic Cuttlefish mascot&nbsp;the pointed (pun intended) change of direction is tonally refreshing!</p>

<p>Replacing the tactility of &lsquo;origami&rsquo; (the paper folding style many previous mascots used) with solid, sharp geometry gives the logo an almost structural feel.</p>

<p>Compared to previous designs the new logo feels weighted and very present &mdash; pretty apt for a Linux distro that rides atop such a solid foundation, isn&rsquo;t it?</p>

<p>Now for the big question:</p>

<h4>Will it be on the wallpaper?</h4>

<p>Should tradition hold, we should expect to see more of the doggy DJ on the official desktop wallpaper. The&nbsp;<em>Artful</em>,&nbsp;<em>Bionic</em>&nbsp;and&nbsp;<em>Cosmic</em>&nbsp;releases all bore their respective mascots on the default background.</p>

The image above this line of waffle depicts the official mascot design for the upcoming release of Ubuntu 19.04 (due mid April)...

Meet the Official Ubuntu 19.04 ‘Disco Dingo’ Mascot - TCMHACK

Meet the Official Ubuntu 19.04 ‘Disco Dingo’ Mascot

With an estimated&nbsp;22 million desktops out there in the wild, the choice of default wallpaper on Ubuntu is an important one.



Every major U...

Look Back At Every Default Ubuntu Wallpaper, Ever - TCMHACK

Look Back At Every Default Ubuntu Wallpaper, Ever

<p>Linux is more capable than ever. With over&nbsp;1000 Linux games available on Steam&nbsp;and a general shift towards more web-based desktop software, there&rsquo;s less need for Windows than ever. After all, you can now&nbsp;watch Netflix on Linux without any hacks, and you can even use&nbsp;Microsoft Office on Linux&mdash;a web-based version of it, at least. But, as most dedicated Linux desktop users will eventually discover, there comes a time when you just need to run a particular piece of Windows software on your Linux PC. There are quite a few ways to do so. Here&rsquo;s what you need to know.</p>
<h2>Wine</h2>
<p>Wine is a way to run Windows software on Linux, but with no Windows required.</p>
<aside id="fsb-2094" class="fakesidebar fakesidebar-auto"></aside>
<p>Wine is an open-source &ldquo;Windows compatibility layer&rdquo; that can run Windows programs directly on your Linux desktop. Essentially, this open-source project is attempting to re-implement enough of Windows from scratch that it can run all those Windows applications without actually needing Windows. This is the only method here that won&rsquo;t actually require a copy of Windows, but the downside is that it won&rsquo;t run every application properly. You may encounter bugs or performance issues, especially if you&rsquo;re using Wine to&nbsp;play video games. But if you&rsquo;re running a popular game released a few years ago, you may find that it performs very well. Many people use Wine to play&nbsp;<em>World of Warcraft</em>&nbsp;on Linux, for example. You can get an idea of how an application will run and any tweaks it might require by visiting the&nbsp;Wine Application Database website&nbsp;and searching for that application. <img class="aligncenter wp-image-222 size-full" src="../../../../uploads/1744776023473-playonlinux-wine-100574846-large.png" alt="" width="580" height="435"></p>
<p style="text-align: center;">PlayOnLinux's version of Wine, running on Ubuntu.</p>
<p>First, download Wine from your Linux distribution&rsquo;s software repositories. Once it&rsquo;s installed, you can then download .exe files for Windows applications and double-click them to run them with Wine. You can also try&nbsp;<strong>PlayOnLinux</strong>, a fancy interface over Wine that will help you install popular Windows programs and games. Codeweavers also offers a commercial version of Wine, known as&nbsp;<strong>CrossOver</strong> Linux. You have to pay to use it, but Codeweavers tries to go out of their way to officially support popular applications (like Microsoft Office, Adobe Photoshop, and some big PC games) and ensure they work properly. Codeweavers also contributes its changes back to the main Wine project.</p>
<h2>Virtual machines</h2>
<p>Virtual machines are a very convenient way to run Windows software on your Linux PC. As PCs have gotten faster, virtual machines have become comparatively more lightweight. This process involves installing a copy of Windows in a &ldquo;virtual machine&rdquo; program like&nbsp;VirtualBox, VMware, or Linux&rsquo;s built-in KVM (Kernel-based Virtual Machine) solution. That copy of Windows thinks it&rsquo;s running on real hardware, but it&rsquo;s really running in window on your desktop. Modern virtual-machine solutions can even break Windows programs running in the virtual machine out of that window, allowing them to act like normal windows on your Linux desktop. <img class="aligncenter wp-image-223 size-full" src="../../../../uploads/1744776059641-virtualbox-on-ubuntu-100574847-large.png" alt="" width="580" height="435"></p>
<p style="text-align: center;">VirtualBox in Ubuntu Linux.</p>
<p>This solution is more foolproof than Wine. As you&rsquo;re running those Windows applications on an actual copy of Windows, you won&rsquo;t encounter bugs. Using a virtual machine does require a full copy of Windows, however, and there is more hardware overhead because that copy of Windows has to be running alongside your primary operating system. In particular, demanding PC games that need access to your computer&rsquo;s graphics card won&rsquo;t perform well at all&mdash;you&rsquo;re better off with Wine for those. But for productivity applications like Microsoft Office or Adobe Photoshop, this is an excellent solution.</p>
<h2>Dual-booting</h2>
<p>Dual-booting isn&rsquo;t technically a way to run Windows software on Linux itself, but it is how many Linux users run Windows software. Rather than using it directly under Linux, you just reboot your computer, choose Windows, and boot into Microsoft&rsquo;s operating system. The Windows software can then run in its native environment. Thanks to&nbsp;modern solid-state drives, that reboot process should be faster than ever. <img class="aligncenter wp-image-221 size-full" src="../../../../uploads/1744776084874-install-linux-in-dual-boot-100574848-large.png" alt="" width="580" height="435"></p>
<p style="text-align: center;">Installing Linux in a dual-boot configuration.</p>
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<div id="div-gpt-ad-k_72c250bd45d620b76daca2f31e12b4d4-z63e3b996185601727d2c362850d2f511-0" data-google-query-id="CIv9iaXVuOECFQvzjwodmIsExQ">
<div id="google_ads_iframe_/208190592/ca-pub-9042063282075774-tag/7911605642/9388313522_0__container__">This is particularly ideal if you&rsquo;re a PC gamer who just can&rsquo;t give Windows up yet. Rather than forgoing all those Windows games, you can just reboot your computer when you want to play Windows-only games. As you&rsquo;re using plain-old Windows running directly on the hardware, you won&rsquo;t have to deal with any compatibility or performance headaches.</div>
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<p>The best way to set up a dual-boot system is to install Windows first&mdash;if your computer came with Windows installed, that&rsquo;s good enough. Next, install the Linux distribution of your choice and tell it to install alongside Windows. You&rsquo;ll then be able to choose your preferred operating system each time you boot your computer. This Ubuntu guide to installing Linux beside Windows can help walk you through the process. The best option really depends on what you're trying to do. If you need to run a single application or game that works well in Wine, Wine may be ideal. If you need to run a variety of desktop applications&mdash;like the most modern versions of Office and Photoshop, which Wine might struggle with&mdash;a virtual machine will be best. If you&rsquo;re a PC gamer who still wants to play the latest Windows games, dual-booting will give you the performance you want without the headaches of Wine.</p>

Linux is more capable than ever. With over 1000 Linux games available on Steam and a general shift towards more web-based desktop software...