AlekseiK Alex-Just

## opened ports.sh
# OSX
lsof -i :8000

# Ubuntu
sudo netstat -peanut

## requests elapsed time.sh
python3 -c "import requests; proxies = {'http': '127.0.0.1:21233'}; response = requests.get('http://ya.ru', proxies = proxies); print ('Elapsed time: ', response.elapsed)"

## update ubuntu packages.sh
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get upgrade

## curl.sh
# curl via proxy with auth
curl -x proxy.com:8080 -U user:pass wtfismyip.com/json

# Response headers only
-I

# Measure time
-w %{time_total}

## npm update.sh
# http://stackoverflow.com/questions/16073603/how-do-i-update-each-dependency-in-package-json-to-the-latest-version

# Use npm-check-updates or npm outdated to suggest the latest versions.
npm outdated

# If you agree, update.
npm update

rm -rf node_modules
rm npm-shrinkwrap.json

## users.sh
whoami

# Add user to sudoers
sudo adduser <username> sudo

# Switch user
su - user2

# List all local users
cut -d: -f1 /etc/passwd

## habr_proxy.py
#!/usr/bin/env python3
# Author: Alex Just <AlexJustEmail@gmail.com>

"""Download target URL, append all 6 letter words with a ™ symbol, and display the outputs in the opened user's browser

Project specification:
    https://docs.google.com/document/d/1bua6MXG9rHyreSPVPEZBkk14WYHy31ia4Vb2rnrgvS0/edit

Installation:
    $ pip3 install bs4 vcrpy

## generators.py
# https://eev.ee/blog/2016/07/31/python-faq-why-should-i-use-python-3/#yield-from
# https://jeffknupp.com/blog/2013/04/07/improve-your-python-yield-and-generators-explained/

# `yield`
# - pauses generator (saves its state) on the current line of code
# - returns yielded value (and control) to the caller
# - receives another `somevalue` from the caller via generator.send(somevalue)

# `yield from`
# - yields an entire sequence

## ssh.sh
ssh-keygen -t rsa

cat ~/.ssh/id_rsa.pub | ssh user@host "mkdir -p ~/.ssh && cat >>  ~/.ssh/authorized_keys"
# or
cat ~/.ssh/id_rsa.pub | ssh-copy-id user@host

ssh-add -K ~/.ssh/id_rsa

# You might need to start ssh-agent
eval `ssh-agent -s`

## bash-cheatsheet.sh
#!/bin/bash

# 0. Shortcuts.

CTRL+A  # move to beginning of line
CTRL+E  # moves to end of line
CTRL+G  # aborts the current editing command and ring the terminal bell
CTRL+K  # deletes (kill) forward to end of line
CTRL+L  # clears screen and redisplay the line
CTRL+R  # searches backward
	sudo apt-get update
	sudo apt-get dist-upgrade
	sudo apt-get upgrade
	# curl via proxy with auth
	curl -x proxy.com:8080 -U user:pass wtfismyip.com/json

	# Response headers only
	-I

	# Measure time
	-w %{time_total}
	# http://stackoverflow.com/questions/16073603/how-do-i-update-each-dependency-in-package-json-to-the-latest-version

	# Use npm-check-updates or npm outdated to suggest the latest versions.
	npm outdated

	# If you agree, update.
	npm update

	rm -rf node_modules
	rm npm-shrinkwrap.json
	whoami

	# Add user to sudoers
	sudo adduser <username> sudo

	# Switch user
	su - user2

	# List all local users
	cut -d: -f1 /etc/passwd
	#!/usr/bin/env python3
	# Author: Alex Just <AlexJustEmail@gmail.com>

	"""Download target URL, append all 6 letter words with a ™ symbol, and display the outputs in the opened user's browser

	Project specification:
	https://docs.google.com/document/d/1bua6MXG9rHyreSPVPEZBkk14WYHy31ia4Vb2rnrgvS0/edit

	Installation:
	$ pip3 install bs4 vcrpy
	# https://eev.ee/blog/2016/07/31/python-faq-why-should-i-use-python-3/#yield-from
	# https://jeffknupp.com/blog/2013/04/07/improve-your-python-yield-and-generators-explained/

	# `yield`
	# - pauses generator (saves its state) on the current line of code
	# - returns yielded value (and control) to the caller
	# - receives another `somevalue` from the caller via generator.send(somevalue)

	# `yield from`
	# - yields an entire sequence
	ssh-keygen -t rsa

	cat ~/.ssh/id_rsa.pub \| ssh user@host "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys"
	# or
	cat ~/.ssh/id_rsa.pub \| ssh-copy-id user@host

	ssh-add -K ~/.ssh/id_rsa

	# You might need to start ssh-agent
	eval `ssh-agent -s`
	#!/bin/bash

	# 0. Shortcuts.

	CTRL+A # move to beginning of line
	CTRL+E # moves to end of line
	CTRL+G # aborts the current editing command and ring the terminal bell
	CTRL+K # deletes (kill) forward to end of line
	CTRL+L # clears screen and redisplay the line
	CTRL+R # searches backward