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MySQL

Getting started:

• http://www.sqlteaching.com/
• https://www.codecademy.com/courses/learn-sql

Related tutorials:

• MySQL-CLI
• Analyzing Business Metrics

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#! /bin/bash

./node_modules/.bin/babel src --out-dir lib && npm publish

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rsync -a --progress --stats --human-readable path_to_source path_to_dest

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How to start and stop Redis server on Mac, Linux, and Windows?
October 30, 2018

In this post, we will show you some quick ways to start and stop Redis database server on multiple operating systems: macOS, Linux, Windows.

``1. On macOS``

Getting started with Redis is quite easy and straightforward. Using Homebrew, you can get it up and running within a couple of commands:

To install Redis on Mac:

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Debloating Nox

Nox, despite being the most feature-filled Android emulator, has a lot of negativity surrounding it due to their antics when it comes to making income off of their program. It is known for running repeated advertisments in the background, calling home and passing along system information (outside of your Android instance) as well as a vast amount of potentially sensitive data in an encrypted payload back to their multitude of servers. With the following preventitive measures, we can stop a majority of this happening as well as greatly improve the overall performance.

1. Download and Install a fresh copy of Nox. The latest version is fine (for now). If you already have it installed, that is fine too. No need to reinstall.

2. Enable Root Mode on Nox by clicking the gear icon and then checking the Root Startup box.

3. Install a new Launcher from the Play Store. ANYTHING but Nox's default. I suggest [Nova Launcher](https://play.google.com/s

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cat file.txt | sed '/^\s*$/d'  | base64 -d  | xxd -r -p > image.png

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For Xcode 8.2 or later

You can take videos and screenshots of Simulator using the xcrun Xcode command-line utility.

1. Run your app on the simulator.

2. Open Terminal.app

3. Run the command

   • To take a screenshot, xcrun simctl io booted screenshot <filename>.<file extension>.
   • To take a video, xcrun simctl io booted recordVideo <filename>.<file extension>.

   For example screenshot: xcrun simctl io booted screenshot myScreenshot.png

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Setting up port for re-routing requests: ex. req to port: 8080 -> port 9000

• iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 9000
• iptables-save

Example:

sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 4776

sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 443 -j REDIRECT --to-port 4776

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Download the agent

curl -OL https://cloud.mongodb.com/download/agent/automation/mongodb-mms-automation-agent-manager_10.14.6.6374-1_amd64.ubuntu1604.deb

and install the package.

sudo dpkg -i mongodb-mms-automation-agent-manager_10.14.6.6374-1_amd64.ubuntu1604.deb

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Create dump mongodump

mongodump --host <DB_HOST> --port <DB_PORT> -u <DB_USER> -p <DB_PASS> -d <DB_NAME> --authenticationDatabase admin

Options

--quiet -- if system is running out of memory

--out -- output directory -- defaults to dump/<db_name>