Alex-Just

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

Alex-Just

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`

Alex-Just

sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get upgrade

Alex-Just

whoami

# Add user to sudoers
sudo adduser <username> sudo

# Switch user
su - user2

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

Alex-Just

#!/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

Alex-Just

# One-liner
pyenv global 3.5.2 && virtualenv .env -p $(pyenv which python) && . .env/bin/activate && python -V && pyenv global system

# List installed versions
pyenv versions

# Set global version to
pyenv global 3.5.2

# Check current set version

Alex-Just

# 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

Alex-Just

# Infinite Loop
while true; do echo 'Hit CTRL+C'; sleep 1; done

# Video to GIF
ffmpeg -i video.mov -ss 00:00:00.000 -pix_fmt rgb8 -r 10 -f gif - | gifsicle --optimize=3 > video.gif

Alex-Just

#!/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

Alex-Just

import json
pp json.loads(json.dumps(resp.data))
pp json.loads(json.dumps(obj))