Elijah Shackelford eshack94

Fetching lyrics in the command line

Objective: Print the lyrics for the current playing song.

How: We'll create a small bash script to do the fetching for us (using curl) and then we'll display it either in the terminal or in our $EDITOR

Get the current song

First we'll need to get the name of the current song and its artist:

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "[email protected]"

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

"Help, I keep getting a 'Permission Denied (publickey)' error when I push!"

This means, on your local machine, you haven't made any SSH keys. Not to worry. Here's how to fix:

Open git bash (Use the Windows search. To find it, type "git bash") or the Mac Terminal. Pro Tip: You can use any *nix based command prompt (but not the default Windows Command Prompt!)
Type cd ~/.ssh. This will take you to the root directory for Git (Likely C:\Users\[YOUR-USER-NAME]\.ssh\ on Windows)
Within the .ssh folder, there should be these two files: id_rsa and id_rsa.pub. These are the files that tell your computer how to communicate with GitHub, BitBucket, or any other Git based service. Type ls to see a directory listing. If those two files don't show up, proceed to the next step. NOTE: Your SSH keys must be named id_rsa and id_rsa.pub in order for Git, GitHub, and BitBucket to recognize them by default.
To create the SSH keys, type ssh-keygen -t rsa -C "[email protected]". Th

	# vi: ft=dosini
	[user]
	name = Pavan Kumar Sunkara
	email = [email protected]
	username = pksunkara
	[core]
	editor = nvim
	whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
	pager = delta
	[column]

	urlencode() {
	# urlencode <string>

	old_lc_collate=$LC_COLLATE
	LC_COLLATE=C

	local length="${#1}"
	for (( i = 0; i < length; i++ )); do
	local c="${1:$i:1}"
	case $c in

	var parser = document.createElement('a');
	parser.href = "http://example.com:3000/pathname/?search=test#hash";

	parser.protocol; // => "http:"
	parser.hostname; // => "example.com"
	parser.port; // => "3000"
	parser.pathname; // => "/pathname/"
	parser.search; // => "?search=test"
	parser.hash; // => "#hash"
	parser.host; // => "example.com:3000"

	HANDY ONE-LINE SCRIPTS FOR AWK 30 April 2008
	Compiled by Eric Pement - eric [at] pement.org version 0.27

	Latest version of this file (in English) is usually at:
	http://www.pement.org/awk/awk1line.txt

	This file will also be available in other languages:
	Chinese - http://ximix.org/translation/awk1line_zh-CN.txt

	USAGE:

	#
	# Copyright (C) 2013-2020 Vinay Sajip. New BSD License.
	#
	import os
	import os.path
	from subprocess import Popen, PIPE
	import sys
	from threading import Thread
	from urllib.parse import urlparse
	from urllib.request import urlretrieve

	# This code is in the public domain
	# Author: Raphaël Barrois


	from __future__ import print_function

	import datetime
	import mock