Surya Teja suryasr007

Use Multiple SSH Keys for Git host websites (Github, Gitlab)

This is guide about how to configure multiple SSH keys for some Git host websites such as Github, Gitlab, among others.

Creating SSH keys

Create SSH directory:

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

Stores data elements based on an sequential, most commonly 0 based, index.
Based on tuples from set theory.

Docker Commands, Help & Tips

Show commands & management commands

$ docker

	curl \
	-X POST \
	-H "Accept: application/vnd.github.v3+json" \
	-H "Authorization: Bearer <GITHUB PERSONAL ACCESS TOKEN>" \
	https://api.github.com/repos/octocat/hello-world/dispatches \
	-d '{"event_type":"event_type"}'

	FROM : Base docker image (Ubuntu, Nginx, python3)
	CMD : to run commands
	RUN : to run commands (can also be used to build docker images) (RUN apt-get install -y python)
	ENTRYPOINT : Commands mentioned in ENTRYPOINT are executed as soon as image is built. It overwrites the CMD commands
	ADD : To copy files from host to container
	ENV : For ENVIRONMENT variables
	WORKDIR : To set where the command in CMD is to be executed
	EXPOSE : To associate a port number to enable networking between the running process
	MAINTAINER :
	USER : To specify the user to run the container.(USER UID)

	def operations(operator, x, y):
	return {
	'add': lambda: x + y,
	'sub': lambda: x - y,
	'mul': lambda: x * y,
	'div': lambda: x / y,
	}.get(operator, lambda: None)()

	>>> operations('mul', 2, 8)
	16

	# Looping can be done using dict.keys(), dict.values() and dict.items()

	>>> knights = {'gallahad': 'the pure', 'robin': 'the brave'}

	# Using items(), we can retrieve key as well as value for each item
	>>> for k, v in knights.items():
	print(k, v)
	gallahad the pure
	robin the brave

	# Defining a dictionary
	>>> tel = {'jack': 4098, 'sape': 4139}

	# If dict keys are only string, we can define as below
	>>> dict(sape=4139, guido=4127, jack=4098)
	{'sape': 4139, 'jack': 4098, 'guido': 4127}

	# Appending a new key value pair to the `tel` dict
	>>> tel['guido'] = 4127

	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console