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diff --git a/themes/agnoster.zsh-theme b/themes/agnoster.zsh-theme
index d1a69c56..2fafdb41 100644
--- a/themes/agnoster.zsh-theme
+++ b/themes/agnoster.zsh-theme
@@ -196,7 +196,7 @@ prompt_hg() {

 # Dir: current working directory
 prompt_dir() {
-  prompt_segment blue $CURRENT_FG '%~'
+  prompt_segment blue $CURRENT_FG '%(4~|%-1~/…/%2~|%3~)'

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import inspect
# functions
def whoami():
    return inspect.stack()[1][3]
def whosdaddy():
    return inspect.stack()[2][3]
def foo():
    print "hello, I'm %s, daddy is %s" % (whoami(), whosdaddy())
    bar()
def bar():

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How to manually setup flake8 as PyCharm external tool

File / Settings / Tools / External Tools / Add
Name: Flake8
Program: $PyInterpreterDirectory$/python
Parameters: -m flake8 --max-complexity 10 --ignore E501 $FilePath$
Working directory: $ProjectFileDir$

Output Filters / Add
Name: Filter 1

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package demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;

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#!/usr/bin/python2
import numpy
g = 10
result = [numpy.random.bytes(1024*1024) for x in xrange(g*1024)]
raw_input('Press <ENTER> to continue')

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{
    "api-cors-header": "",
    "authorization-plugins": [],
    "bip": "",
    "bridge": "",
    "cgroup-parent": "",
    "cluster-store": "",
    "cluster-store-opts": {},
    "cluster-advertise": "",
    "debug": true,

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#!/bin/bash

# extern variables
SCRIPT_FULL_NAME=$0
SCRIPT_PID=$$
SCRIPT_PID_FILE=/tmp/shadowsocks_ss.pid
SS=ss-redir
SS_IP=127.0.0.1
SS_PORT=1080
SS_LOCAL_PORT=1081

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##ss-redir 的 iptables 配置(透明代理)

透明代理指对客户端透明，客户端不需要进行任何设置就使用了网管设置的代理规则

创建 /etc/ss-redir.json 本地监听 7777 运行ss-redir -v -c /etc/ss-redir.json

iptables -t nat -N SHADOWSOCKS
# 在 nat 表中创建新链
iptables -t nat -A SHADOWSOCKS -p tcp --dport 23596 -j RETURN
# 23596 是 ss 代理服务器的端口，即远程 shadowsocks 服务器提供服务的端口，如果你有多个 ip 可用,但端口一致，就设置这个

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package main

import "fmt"

// fibonacci is a function that returns
// a function that returns an int.
func fibonacci() func() int {
	a, b, c := 0, 1, 0
	return func() int {
		c, a, b = a, b, a+b

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package main

import (
	"golang.org/x/tour/wc"
	"strings"
)

func WordCount(s string) map[string]int {
	words := strings.Fields(s)
	counts := make(map[string]int)