Clark Clark-zhang

In order to run this image do: docker-compose up -d to get all up. On first run DB initialization and initial user setup is done like so:

First start a bash in the container: docker-compose exec sentry /bin/bash. Then, inside bash, do sentry upgrade wait until it asks you for an inital user. When finished exit the bash.

When in doubt check with docker-compose ps if all went fine.

Introduction

C-a == Ctrl-a
M-a == Alt-a

General

:q        close
:w        write/saves
:wa[!]    write/save all windows [force]
:wq       write/save and close

大名鼎鼎的 Paul Graham 写过一篇《The Roots of Lisp》，讲解他对 Lisp 根源的理解。这篇文章我在很多年前就试图阅读，但是都不大能读懂，直到去年年末时候我读了几十年前的 Lisp 1.5 手册的相关部分，终于算是理解了。再读一遍 pg 的文章，也就完全能懂了。现在结合自己的理解尝试把这些概念重述一遍。这篇文章就是想以自己的话语阐述一遍这些基本概念。这里会偏重于数学式的思维训练而不是实用性的程序编写，所以和实际情况会稍有出入。计划写两部分，第一部分是7个原始操作，第二部分讲实现 Lisp 解释器。

在 lisp manual 里面，我看到 John 使用了一种数学人很喜欢的表述方式，就是先定义符号和规则，然后在这套规则下让我们来看看我们可以怎么玩。有一点数学基础的人可能就会觉得这样理解会很容易。

##基本定义

首先定义符号，为了简化，我在这篇文章里就定义可用的符号为 26 个小写字母、10个数字、空格、左右圆括号和单引号。

然后我们定义原子（atom），原子就是由字母和数字组成序列并且只能由字母开头，比如 abc123，比如 foo 或 bar 都是原子。

	version: "3"
	services:
	mongo1:
	hostname: mongo1
	container_name: localmongo1
	image: mongo:4.0-xenial
	expose:
	- 27017
	ports:
	- 27011:27017

	package main

	import (
	"fmt"
	"io"
	"net"
	"time"
	)

	func main() {

	<?php

	/**
	* Find the starting Monday for the given week (or for the current week if no date is passed)
	*
	* This is required as strtotime considers Sunday the first day of a week,
	* making strtotime('Monday this week') on a Sunday return the adjacent Monday
	* instead of the previous one.
	*
	* @param string\|\DateTime\|null $date

	package main

	//
	// Starting point is from http://gcmurphy.wordpress.com/2012/11/30/using-epoll-in-go/
	//

	import (
	"fmt"
	"os"
	"syscall"

	#!/usr/bin/env bash
	# script: watch
	# author: Mike Smullin <[email protected]>
	# license: GPLv3
	# description:
	# watches the given path for changes
	# and executes a given command when changes occur
	# usage:
	# watch <path> <cmd...>
	#

	-- a quick LUA access script for nginx to check IP addresses against an
	-- `ip_blacklist` set in Redis, and if a match is found send a HTTP 403.
	--
	-- allows for a common blacklist to be shared between a bunch of nginx
	-- web servers using a remote redis instance. lookups are cached for a
	-- configurable period of time.
	--
	-- block an ip:
	-- redis-cli SADD ip_blacklist 10.1.1.1
	-- remove an ip: