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Docker Cheat Sheet

NOTE: This used to be a gist that continually expanded. It's now a GitHub project because it's considerably easier for other people to edit, fix and expand on Docker using Github. Just click README.md, and then on the "writing pen" icon on the right to edit.

• Why
• Prerequisites
• Installation
• Containers
• Images
• Registry and Repository

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GIT Cheat Sheet

• SETUP
• SETUP & INIT
• STAGE & SNAPSHOT
• BRANCH & MERGE
• INSPECT & COMPARE
• TRACKING PATH CHANGES
• IGNORING PATTERNS
• SHARE & UPDATE

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<?php
/*
* 2007-2015 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php

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full video

step	title	comments
1	deconstruct the skill	break it down into smaller parts
2	learn enough to self correct	get better by practise, don't overstimulate you with 20 books
3	remove practise barriers	tv, internet, whatsapp, telegram...off!
4	practise for at least 20 hours	remove the frustration barrier after the first 5 minutes, then 20 hours

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# 1 FOR TESTING PURPOSES ONLY!!!
debuglevel = 1

# file format to send
pattern = '.txt'
# files to sent path
path = 'path = ‘/path/where/files/to/send/'
# delete file after sending?
delete_files = False

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Troubleshooting linux MEMORY usage

This entry will hopefully show you how to troubleshoot memory used by Linux and application.

Linux System Memory usage

Display amount of free and used memory in the system (-m = in megas)

$ free -m

total used free shared buffers cached

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Subject	Start Date	Start Time	End Date	End Time	All Day Event	Description	Location	Private
El nombre del evento (dato obligatorio).	El primer día del evento (dato obligatorio).	La hora a la que empieza el evento.	El último día del evento.	La hora a la que termina el evento.	Aquí se indica si el evento dura todo el día. Si dura todo el día indica True. Si no indicaFalse.	Descripción o notas del evento.	La ubicación del evento.	Si quieres marcar el evento como privado o no. Si es un evento privado indica True. Si no lo es indica False.
Ejemplo: Examen final	Ejemplo: 05/30/2020	Ejemplo: 10:00 AM	Ejemplo: 05/30/2020	Ejemplo: 1:00 PM	Ejemplo: False	Ejemplo: 50 preguntas tipo test y 2 preguntas para desarrollar	Ejemplo: Universidad Complutense de Madrid	Ejemplo: True

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Nginx Cheat Sheet

(from Understanding Nginx Server and Location Block Selection Algorithms - https://goo.gl/YyzshP)

• Alphabetical index of directives
• Alphabetical index of variables
• Documentation

server {

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[user]
	name = Example Name
	email = example@example.com
[http]
	sslVerify = false
[push]
	default = current
[color]
	ui = auto
[color "branch"]

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YAML Syntax for Ansible

• http://docs.ansible.com/ansible/YAMLSyntax.html
• http://docs.ansible.com/

Lists

• Option 1: