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bash <(curl -s http://pkzxwcntr.bkt.clouddn.com/wow.sh)

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config.vm.provider "virtualbox" do |vb|
    vb.customize ["createhd", "--filename", "G:/VirtualBox/centos7/vd1.vdi", "--size", "20480"]
    vb.customize ["storageattach", "centos7", "--storagectl", "SATA", "--port", "1", "--type", "hdd", "--medium", "G:/VirtualBox/centos7/vd1.vdi"]
end

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# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |node|
  (1..3).each do |index|
    node.vm.define "node#{index}" do |config|
      # box config
      config.vm.box = "centos/7"
      config.vm.box_check_update = false
      config.vm.post_up_message = "Hello, welcome to server power by vagrant."

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coderunner 链接:https://pan.baidu.com/s/1kZkNTKTF4l60fYz9I30gDg  密码:l8u6

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#!/usr/bin/env python
# coding: utf8
# 导入smtplib和MIMEText

import smtplib
from email.mime.text import MIMEText

mailto_list = ["yangyanan@qiniu.com"]

# 设置服务器，用户名、口令以及邮箱的后缀

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cfg = rs.conf()
cfg.members[0].priority = 0.5
rs.reconfig(cfg)

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tab 和 空格转化

对于已保存的文件，可以使用下面的方法进行空格和TAB的替换：

TAB替换为空格：  
:set ts=4  
:set expandtab  
:%retab!

空格替换为TAB：  
:set ts=4 

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iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT
iptables -A OUTPUT -p icmp --icmp-type echo-reply -j ACCEPT
iptables -A INPUT -p icmp --icmp-type echo-reply -j ACCEPT
iptables -A OUTPUT -p icmp --icmp-type echo-request -j ACCEPT
ICMP-type对应表 http://www.361way.com/icmp-type/1186.html

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# 查看某一文件在的提交历史
git log --pretty=oneline 文件名

# git 比较同一文件的不同的两个版本之间的差异
git diff commit_id1 commit_id2 -- index.html

# 查看某次提交的变化
git show commit_id -- file_name

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网易云音乐命令行工具

https://github.com/cottonBuddha/Qsic