Wafukho Kelly Joseph kellyjoe256

To list all python versions in default locations

ls /usr/bin/python*

To remove just python3 package

sudo apt-get remove python3.5

plus it's dependent packages

sudo apt-get remove --auto-remove python3.5

plus configuration and/or data files of python3

sudo apt-get purge python3.5

Awesome git

General tutorial

Kickstart tutorial
Must-read tutorial: the concepts of branching and merging note the collaborating link at the bottom
A branching top-down view
How to resolve merge conflicts in Git? - Stack Overflow Very good hints below the solution.
Github's help for merging from commandline

Vim as a mergetool

Bash getopt long options with values usage example

#!/bin/bash -e

ARGUMENT_LIST=(
  "arg-one"
  "arg-two"
  "arg-three"
)

PHP Style Guide

All rules and guidelines in this document apply to PHP files unless otherwise noted. References to PHP/HTML files can be interpreted as files that primarily contain HTML, but use PHP for templating purposes.

The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119.

Most sections are broken up into two parts:

Overview of all rules with a quick example
Each rule called out with examples of do's and don'ts

Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags

<meta name="keywords" content="your, tags"/>
<meta name="description" content="150 words"/>
<meta name="subject" content="your website's subject">
<meta name="copyright"content="company name">
<meta name="language" content="ES">

	# Terminal Cheat Sheet

	pwd # print working directory
	ls # list files in directory
	cd # change directory
	~ # home directory
	.. # up one directory
	- # previous working directory
	help # get help
	-h # get help