fangpsh fangpsh

Installing SSHPASS

SSHPass is a tiny utility, which allows you to provide the ssh password without using the prompt. This will very helpful for scripting. SSHPass is not good to use in multi-user environment. If you use SSHPass on your development machine, it don't do anything evil.

Installing on Ubuntu

apt-get install sshpass

Installing on OS X

Linux Backup Solutions

I've been looking for the best Linux backup system, and also reading lots of HN comments.

Instead of putting pros and cons of every backup system I'll just list some deal-breakers which would disqualify them.

Also I would like that you, the HN community, would add more deal breakers for these or other backup systems if you know some more and at the same time, if you have data to disprove some of the deal-breakers listed here (benchmarks, info about something being true for older releases but is fixed on newer releases), please share it so that I can edit this list accordingly.

Amanda (comments by sammcj)

It has a lot of management overhead and that's a problem if you don't have time for a full time backup administrator.

Mac下配置Aria2

安装和设置 Aria2

# 使用 Homebrew 安装 aria2
brew install aria2

# 创建配置文件aria2.conf和空对话文件aria2.session
mkdir ~/.aria2 && cd ~/.aria2
touch aria2.conf

Like Flask "g". Good news you can do the same with FastAPI

"g" is a threadlocal magic object that lets developer add / change / remove attributes during the request lifecycle. Learn more about this "g" here.

There is no OTB equivalent in FastAPI, but thanks to the new contextvars Python 3.7+ module, I made this simple demo.

Any comment or help to improve yhis recipe is welcome.

	/*
	** Copyright 2000
	** by
	** The Board of Trustees of the
	** Leland Stanford Junior University.
	** All rights reserved.
	**
	**
	** Disclaimer Notice
	**

	local bit = require "bit"
	local byte = string.byte
	local lshift = bit.lshift
	local rshift = bit.rshift
	local concat = table.concat
	local insert = table.insert
	local char = string.char
	local band = bit.band
	local sub = string.sub
	local gsub = string.gsub

	#!/bin/bash

	# brew install oath-toolkit
	#
	# ~/.otpkeys:
	# name1=secret
	# name2=secret

	scriptname=`basename $0`
	if [ -z $1 ]

	import cStringIO
	import PIL.Image
	from ssim import compute_ssim


	def get_ssim_at_quality(photo, quality):
	"""Return the ssim for this JPEG image saved at the specified quality"""
	ssim_photo = cStringIO.StringIO()
	# optimize is omitted here as it doesn't affect
	# quality but requires additional memory and cpu

	# -- encoding: utf-8 --
	# requires a recent enough python with idna support in socket
	# pyopenssl, cryptography and idna

	from OpenSSL import SSL
	from cryptography import x509
	from cryptography.x509.oid import NameOID
	import idna

	from socket import socket