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How To

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  • 1 min
  • Tools

How To: Sublime Text Editor For Ubuntu – Installation

Overview Sublime is a text editor with a wide range of support for different programming languages. It also support installation of plugins.   Prerequisites Ubuntu 18.04   Installation Install using the following commands    
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  • 2 min
  • Tech
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How To Install Vokoscreen Video Desktop Recorder For Ubuntu

Overview Vokoscreen is a video desktop recorder for Ubuntu that allows selection of the screen area, setting the number of frames, and even provide a zoom function on the area the cursor is located.   Prerequisites Ubuntu 18.04   Installation 01. Install using the following commands   02. Once installed can access the application using the launcher   or via the command line   03. It will open the Vokoscreen user interface.     Features Recording Area Fullscreen – records the whole content of the desktop Window – allows selecting an application window to record Area – will open a…
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  • 1 min
  • Tech
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How To Install Peek Desktop Recorder For Ubuntu

Overview Peek is another desktop video recorder. It’s simple and can output the recording in GIF, APNG, WebM and MP4. It might not have all the features like Vokoscreen has but it is sufficient for simple use cases.   Prerequisites Ubuntu 18.04   Installation 01. Add the package repository for Peek. 02. Update the package repository 03. Install Peek    
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  • 1 min
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How To: Shutter Screenshot Tool For Ubuntu – Installation And Shortcuts

Overview Shutter is an Ubuntu software that can be used to make a screenshot of the desktop and applications. It also provides basic editing of images like blurring sections, adding text and arrows and crop.   Prerequisites Ubuntu 18.04   Installation Install using the following commands   Ubuntu Shortcuts From the Ubuntu Settings, select “Devices” then “Keyboard”. Add custom shortcut using the plus button on the bottom.   Configure the following in your Ubuntu Keyboard Shortcuts. This requires that you have installed Shutter. Description Command Keyboard Shortcut Shutter Full Screen shutter -f Alt+P Shutter Active Window bash -c “pkill shutter…
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  • 2 min
  • Programming

How To Create A Simple Python Web App Using NGINX, uWSGI, And Flask – Part 03 of 03

Overview This is the 2nd part of the 3-part guide on Installing, Configuring and Deploying a Python Web/Flask application on an Ubuntu system that uses NGINX and uWSGI. For the installation part go here. For the configuration part go here.   Prerequisites Ubuntu 18.04 Python 3.x has been installed. For instructions see here. Pip and Virtual Environment has been installed. For instructions see here. Installed NGINX, uWSGI, and uWSGI-Emperor from previous guides. Configured NGINX, uWSGI and uWSGI-Emperor from previous guides.   Deploy a Flask App/API using uWSGI and NGINX Note: For this demo, we used the sample flask app and…
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  • 2 min
  • Programming

How To Create A Simple Python Web App Using NGINX, uWSGI, And Flask – Part 02 of 03

Overview This is the 2nd part of the 3-part guide on installing, configuring and deploying a Python Web/Flask application on an Ubuntu system that uses NGINX and uWSGI. For the installation part go here. If you’ve finished Installation and Configuration you can go here to deploy the app. Prerequisites Ubuntu 18.04 Python 3.x has been installed. For instructions see here. Pip and Virtual Environment has been installed. For instructions see here. Installed NGINX, uWSGI, and uWSGI-Emperor   uWSGI Configuration 01. Create the uWSGI configuration in /etc/uwsgi/apps-available/.   Set the content as follows   02. Create a symlink in /var/uwsgi-emperor/vassals/.   03.…
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  • 2 min
  • Programming

How To Create A Simple Python Web App Using NGINX, uWSGI, And Flask – Part 01 of 03

Overview This tutorial will guide you in creating a simple Web/Flask Python application and deploy it on an NGINX server with uWSGI and uWSGI Emperor. This part 1 covers the installation of the required packages. It will install the following: NGINX uWSGI uWSGI-Emperor Flask It will also cover creation of Virtual Environment Installation of python packages via the requirements.txt   Prerequisites Ubuntu 18.04 Python 3.x has been installed. For instructions see here. Pip and Virtual Environment has been installed. For instructions see here.   Verification 01. Verify that Python and Pip3 has been installed   Setup the Python Virtual Environment 01.…
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  • 5 min
  • Big Data
  • Platforms

Introduction To Data Analysis Using GCP BigQuery And Python

Overview This guide provides an intro to the GCP BigQuery and how it can be used for data analysis. It also shows how to query the data using Python.   Prerequisites Access to Google Cloud Console Installed Python on your machine. Refer to the following for Ubuntu and Windows installation. Installed Google Cloud SDK. Refer to the following on how to install for Ubuntu.   Reviewing the Data Structure For this guide we’ll be using the “Predicted hourly heights of tides in 2019 – Quarry bay” (in Hongkong). You can get the data here at this link. Download the CSV…
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  • 1 min
  • Programming

How To Install Node.js In Ubuntu

Overview Installation of Node.js on an Ubuntu system. At the time of this writing, the stable version is 10.16.2 (LTS) and the current version is 12.8.0.   Prerequisites Ubuntu 18 and above   Download and install via the package manager Current version : 12.x   Stable and LTS version: 10.16.2 Install via snap Current version: 12.x Stable and LTS version : 10.16.2 Test 01. To test if the installation and scripts are working 02. Check the version      
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  • 1 min
  • Data
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How To Install And Configure Neo4J In Ubuntu

Overview This guide contains instructions on how to install and do basic configuration of a Neo4J database.   Prerequisites Operating System: Ubuntu 18.04 Access to a Terminal or Shell Console   Installation 01: Open a terminal window   02: Update the package repository list   03: Install Java. We will be using OpenJDK 8. Other possible candidates are Oracle Java 8 or IBM Java 8. Enter with y, when asked to confirm installation.   04: Verify that Java has been installed.   05: Update the package repository to include Neo4J.   06: Install Neo4J, Enter y when asked to confirm.…
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