array(2) {
  ["docs"]=>
  array(10) {
    [0]=>
    array(10) {
      ["id"]=>
      string(3) "428"
      ["text"]=>
      string(77) "Visual Studio 2017 单独启动MSDN帮助（Microsoft Help Viewer）的方法"
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(8) "DonetRen"
      ["tagsname"]=>
      string(55) "Visual Studio 2017|MSDN帮助|C#程序|.NET|Help Viewer"
      ["tagsid"]=>
      string(23) "[401,402,403,"300",404]"
      ["catesname"]=>
      string(0) ""
      ["catesid"]=>
      string(2) "[]"
      ["createtime"]=>
      string(10) "1511400964"
      ["_id"]=>
      string(3) "428"
    }
    [1]=>
    array(10) {
      ["id"]=>
      string(3) "427"
      ["text"]=>
      string(42) "npm -v；报错 cannot find module "wrapp""
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(4) "zzty"
      ["tagsname"]=>
      string(50) "node.js|npm|cannot find module "wrapp“|node"
      ["tagsid"]=>
      string(19) "[398,"239",399,400]"
      ["catesname"]=>
      string(0) ""
      ["catesid"]=>
      string(2) "[]"
      ["createtime"]=>
      string(10) "1511400760"
      ["_id"]=>
      string(3) "427"
    }
    [2]=>
    array(10) {
      ["id"]=>
      string(3) "426"
      ["text"]=>
      string(54) "说说css中pt、px、em、rem都扮演了什么角色"
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(12) "zhengqiaoyin"
      ["tagsname"]=>
      string(0) ""
      ["tagsid"]=>
      string(2) "[]"
      ["catesname"]=>
      string(0) ""
      ["catesid"]=>
      string(2) "[]"
      ["createtime"]=>
      string(10) "1511400640"
      ["_id"]=>
      string(3) "426"
    }
    [3]=>
    array(10) {
      ["id"]=>
      string(3) "425"
      ["text"]=>
      string(83) "深入学习JS执行--创建执行上下文（变量对象，作用域链，this）"
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(7) "Ry-yuan"
      ["tagsname"]=>
      string(33) "Javascript|Javascript执行过程"
      ["tagsid"]=>
      string(13) "["169","191"]"
      ["catesname"]=>
      string(0) ""
      ["catesid"]=>
      string(2) "[]"
      ["createtime"]=>
      string(10) "1511399901"
      ["_id"]=>
      string(3) "425"
    }
    [4]=>
    array(10) {
      ["id"]=>
      string(3) "424"
      ["text"]=>
      string(30) "C# 排序技术研究与对比"
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(9) "vveiliang"
      ["tagsname"]=>
      string(0) ""
      ["tagsid"]=>
      string(2) "[]"
      ["catesname"]=>
      string(8) ".Net Dev"
      ["catesid"]=>
      string(5) "[199]"
      ["createtime"]=>
      string(10) "1511399150"
      ["_id"]=>
      string(3) "424"
    }
    [5]=>
    array(10) {
      ["id"]=>
      string(3) "423"
      ["text"]=>
      string(72) "【算法】小白的算法笔记：快速排序算法的编码和优化"
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(9) "penghuwan"
      ["tagsname"]=>
      string(6) "算法"
      ["tagsid"]=>
      string(7) "["344"]"
      ["catesname"]=>
      string(0) ""
      ["catesid"]=>
      string(2) "[]"
      ["createtime"]=>
      string(10) "1511398109"
      ["_id"]=>
      string(3) "423"
    }
    [6]=>
    array(10) {
      ["id"]=>
      string(3) "422"
      ["text"]=>
      string(64) "JavaScript数据可视化编程学习（二）Flotr2，雷达图"
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(7) "chengxs"
      ["tagsname"]=>
      string(28) "数据可视化|前端学习"
      ["tagsid"]=>
      string(9) "[396,397]"
      ["catesname"]=>
      string(18) "前端基本知识"
      ["catesid"]=>
      string(5) "[198]"
      ["createtime"]=>
      string(10) "1511397800"
      ["_id"]=>
      string(3) "422"
    }
    [7]=>
    array(10) {
      ["id"]=>
      string(3) "421"
      ["text"]=>
      string(36) "C#表达式目录树（Expression）"
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(4) "wwym"
      ["tagsname"]=>
      string(0) ""
      ["tagsid"]=>
      string(2) "[]"
      ["catesname"]=>
      string(4) ".NET"
      ["catesid"]=>
      string(7) "["119"]"
      ["createtime"]=>
      string(10) "1511397474"
      ["_id"]=>
      string(3) "421"
    }
    [8]=>
    array(10) {
      ["id"]=>
      string(3) "420"
      ["text"]=>
      string(47) "数据结构 队列_队列实例：事件处理"
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(7) "idreamo"
      ["tagsname"]=>
      string(40) "C语言|数据结构|队列|事件处理"
      ["tagsid"]=>
      string(23) "["246","247","248",395]"
      ["catesname"]=>
      string(12) "数据结构"
      ["catesid"]=>
      string(7) "["133"]"
      ["createtime"]=>
      string(10) "1511397279"
      ["_id"]=>
      string(3) "420"
    }
    [9]=>
    array(10) {
      ["id"]=>
      string(3) "419"
      ["text"]=>
      string(47) "久等了,博客园官方Android客户端发布"
      ["intro"]=>
      string(288) "目录

ECharts
异步加载



ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [
        "
      ["username"]=>
      string(3) "cmt"
      ["tagsname"]=>
      string(0) ""
      ["tagsid"]=>
      string(2) "[]"
      ["catesname"]=>
      string(0) ""
      ["catesid"]=>
      string(2) "[]"
      ["createtime"]=>
      string(10) "1511396549"
      ["_id"]=>
      string(3) "419"
    }
  }
  ["count"]=>
  int(200)
}
222<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="content-language" content="zh-CN" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" /> 
    <title>第11章：sed进阶操作 - 爱码网</title>
     
<meta name="keywords" content="第11章：sed进阶操作" />
<meta name="description" content="目录ECharts异步加载ECharts
数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。
chart.setOption({
    color: [" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css" href="/statics/css/base.css?v=2.7" />
<script src="/statics/js/detail.min.js?v=2.2"></script>   
<script>
   $(document).ready(function () { 
		$("img").error(function () {
			$(this).hide();
		}); 
	}); 
</script>
</head>
<body class="home-template dtpg">
<nav class="main-nav clearfix">
    <div class="inner">
        <ul class="nav">
            <li class="menu-item menu-item-type-custom menu-item-object-custom current-menu-item current_page_item menu-item-home menu-item-886"><a href="/" title="爱码网">首页</a></li>
                        <li class="menu-item menu-item-type-custom menu-item-object-custom current-menu-item current_page_item menu-item-home menu-item-886"><a href="/nav/1.html" title="前端技术">前端技术</a></li>
                        <li class="menu-item menu-item-type-custom menu-item-object-custom current-menu-item current_page_item menu-item-home menu-item-886"><a href="/nav/9.html" title="编程语言">编程语言</a></li>
                        <li class="menu-item menu-item-type-custom menu-item-object-custom current-menu-item current_page_item menu-item-home menu-item-886"><a href="/nav/31.html" title="人工智能">人工智能</a></li>
                        <li class="menu-item menu-item-type-custom menu-item-object-custom current-menu-item current_page_item menu-item-home menu-item-886"><a href="/nav/41.html" title="运维知识">运维知识</a></li>
                        <li class="menu-item menu-item-type-custom menu-item-object-custom current-menu-item current_page_item menu-item-home menu-item-886"><a href="/nav/52.html" title="资源下载">资源下载</a></li>
                        <li class="menu-item menu-item-type-custom menu-item-object-custom current-menu-item current_page_item menu-item-home menu-item-886"><a href="/nav/68.html" title="常用小工具">常用小工具</a></li>
                        <li class="menu-item menu-item-type-custom menu-item-object-custom current-menu-item current_page_item menu-item-home menu-item-886"><a href="/nav/72.html" title="技术问答">技术问答</a></li>
                    </ul>            
	 
    </div>
</nav><div class="site-wrapper">
 
    <header style="height: auto;padding: 10px 0px;" class="main-header">
        <div style="max-width:910px" class="main-header-content inner">
                        <h1 class="page-title"><a href="/show-306049928.html" title="第11章：sed进阶操作">第11章：sed进阶操作</a></h1>
            
        </div>

    </header>
    <main class="content" role="main">
	

        <div class="leftbox">
    <article class="post tag-uifont tag-webview">
        <header class="post-header">
            <footer class="tc">  
                <time class="post-date" datetime="2021-06-09">2021-06-09</time>
            </footer>
        </header>
        <section class="post-content">
            <div class="contentbef">  
                  
                              </div>

            
                                    
<p style="text-align: left" align="center"> </p>
<p align="center"><span style="color: rgba(255, 0, 0, 1)"><strong><span style="font-size: 18pt">第11章：sed进阶操作</span></strong></span></p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p style="text-align: center"><strong>sed是一个很好的文件处理工具，本身是一个管道命令，主要是以行为单位进行处理，可以将数据行进行替换、删除、新增、选取等特定工作，下面先了解一下sed的用法</strong></p>
<p> </p>
<p> </p>
<p><strong><span style="color: rgba(255, 0, 0, 1)">sed命令行格式为：</span></strong></p>
<p>        <strong> sed  [option]  ‘command’  </strong><strong>输入文本</strong></p>
<p> </p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)"><strong>[option] </strong><strong>常用选项：</strong></span></p>
<p>-n  ---   使用安静(silent)模式。在一般 sed 的用法中，所有来自 STDIN的资料一般都会被列出到萤幕上。但如果加上 -n 参数后，则只有经过sed 特殊处理的那一行(或者动作)才会被列出来。</p>
<p>-e  ---   直接在指令列模式上进行 sed 的动作编辑。</p>
<p>-f  ---   直接将 sed 的动作写在一个档案内， -f filename 则可以执行 filename 内的sed 动作。</p>
<p>-r  ---   sed 的动作支援的是延伸型正规表示法的语法。(预设是基础正规表示法语法)。</p>
<p>-i  ---   直接修改读取的档案内容，而不是由屏幕输出。      </p>
<p> </p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)"><strong>‘command’ </strong><strong>常用命令：</strong></span></p>
<p>a   ------    新增</p>
<p>c   ------    取代</p>
<p>d   ------    删除</p>
<p>i    ------    插入</p>
<p>p   ------    列印</p>
<p>s   ------     替换</p>
<p> </p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)"><strong>举例：</strong></span></p>
<p><strong>Linux</strong><strong>系统创建了一个测试文本list</strong><strong>，后续部分范例会使用到list测试文本，测试文本list</strong><strong>内容如下：</strong></p>
<p>[root@cloucentos6 home]# <span style="color: rgba(255, 0, 0, 1)">cat list</span></p>
<p>John Daggett, 341 King Road, Plymouth MA</p>
<p>Alice Ford, 22 EAST Broadway, Richmond VA</p>
<p>Orville Thomas, 11345 Oak Bridge Road, Tulsa OK</p>
<p>Terry Kalkas, 402 Lans Road, Beaver Falls PA</p>
<p>Eric Adams, 20 Post Road, Sudbury MA</p>
<p>Hubert Sims, 328A Brook Road, Roanoke VA</p>
<p>Amy Wilde, 334 Bayshore Pkwy, Mountain View CA</p>
<p>Sal Carpenter, 73 6th Street, Boston MA</p>
<p> </p>
<p> </p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)"><strong>范例1</strong></span><strong><span style="color: rgba(255, 0, 0, 1)">：</span>’command’ </strong><strong>常用命令 s</strong><strong>替换，把list</strong><strong>文本MA</strong><strong>字段替换成Massachusetts</strong><strong>字段。</strong></p>
<p>[root@cloucentos6 home]# <span style="color: rgba(255, 0, 0, 1)">sed  's/MA/Massachusetts/'  list</span></p>
<p>John Daggett, 341 King Road, Plymouth Massachusetts</p>
<p>Alice Ford, 22 EAST Broadway, Richmond VA</p>
<p>Orville Thomas, 11345 Oak Bridge Road, Tulsa OK</p>
<p>Terry Kalkas, 402 Lans Road, Beaver Falls PA</p>
<p>Eric Adams, 20 Post Road, Sudbury Massachusetts</p>
<p>Hubert Sims, 328A Brook Road, Roanoke VA</p>
<p>Amy Wilde, 334 Bayshore Pkwy, Mountain View CA</p>
<p>Sal Carpenter, 73 6th Street, Boston Massachusetts</p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)">知识点补充：</span>command’ 常用命令 s替换选项并不会影响list文本原来的内容。</p>
<p> </p>
<p> </p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)"><strong>范例2</strong></span><strong><span style="color: rgba(255, 0, 0, 1)">：</span>[option] </strong><strong>常用选项 -e</strong><strong>指定命令行上的多重指令。三种方法实现多重指令。</strong></p>
<p>[root@cloucentos6 home]# <span style="color: rgba(255, 0, 0, 1)">sed  's/MA/,Massachusetts/;s/PA/,Pennsylvania/'  list</span></p>
<p>John Daggett, 341 King Road, Plymouth ,Massachusetts</p>
<p>Alice Ford, 22 EAST Broadway, Richmond VA</p>
<p>Orville Thomas, 11345 Oak Bridge Road, Tulsa OK</p>
<p>Terry Kalkas, 402 Lans Road, Beaver Falls ,Pennsylvania</p>
<p>Eric Adams, 20 Post Road, Sudbury ,Massachusetts</p>
<p>Hubert Sims, 328A Brook Road, Roanoke VA</p>
<p>Amy Wilde, 334 Bayshore Pkwy, Mountain View CA</p>
<p>Sal Carpenter, 73 6th Street, Boston ,Massachusetts</p>
<p> </p>
<p>[root@cloucentos6 home]# <span style="color: rgba(255, 0, 0, 1)">sed  -e 's/MA/,Massachusetts/'  -e 's/PA/,Pennsylvania/'  list</span></p>
<p>John Daggett, 341 King Road, Plymouth ,Massachusetts</p>
<p>Alice Ford, 22 EAST Broadway, Richmond VA</p>
<p>Orville Thomas, 11345 Oak Bridge Road, Tulsa OK</p>
<p>Terry Kalkas, 402 Lans Road, Beaver Falls ,Pennsylvania</p>
<p>Eric Adams, 20 Post Road, Sudbury ,Massachusetts</p>
<p>Hubert Sims, 328A Brook Road, Roanoke VA</p>
<p>Amy Wilde, 334 Bayshore Pkwy, Mountain View CA</p>
<p>Sal Carpenter, 73 6th Street, Boston ,Massachusetts</p>
<p> </p>
<p>[root@cloucentos6 home]#<span style="color: rgba(255, 0, 0, 1)"> sed  '</span></p>
<p>&gt; s/MA/,Massachusetts/</p>
<p>&gt; s/PA/,Pennsylvania/' list</p>
<p>John Daggett, 341 King Road, Plymouth ,Massachusetts</p>
<p>Alice Ford, 22 EAST Broadway, Richmond VA</p>
<p>Orville Thomas, 11345 Oak Bridge Road, Tulsa OK</p>
<p>Terry Kalkas, 402 Lans Road, Beaver Falls ,Pennsylvania</p>
<p>Eric Adams, 20 Post Road, Sudbury ,Massachusetts</p>
<p>Hubert Sims, 328A Brook Road, Roanoke VA</p>
<p>Amy Wilde, 334 Bayshore Pkwy, Mountain View CA</p>
<p>Sal Carpenter, 73 6th Street, Boston ,Massachusetts</p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)">知识点补充：</span>’command’并不是任何情况下都需要将指令用单引号括起来，但需要养成这个好习惯。使用单引号可以阻止shell解释编辑指令中的特殊字符或空格。</p>
<p> </p>
<p> </p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)"><strong>范例3</strong></span><strong><span style="color: rgba(255, 0, 0, 1)">：</span>[option] </strong><strong>常用选项 -f</strong><strong>直接将 sed </strong><strong>的动作写在一个文本内， -f </strong><strong>文本则可以执行文本内的sed </strong><strong>动作。</strong></p>
<p>[root@cloucentos6 home]#<span style="color: rgba(255, 0, 0, 1)"> cat  filename</span></p>
<p>s/MA/,Massachusetts/</p>
<p>s/PA/,Pennsylvania/</p>
<p>s/CA/,California/</p>
<p>[root@cloucentos6 home]#<span style="color: rgba(255, 0, 0, 1)"> sed  -f  filename  list</span></p>
<p>John Daggett, 341 King Road, Plymouth ,Massachusetts</p>
<p>Alice Ford, 22 EAST Broadway, Richmond VA</p>
<p>Orville Thomas, 11345 Oak Bridge Road, Tulsa OK</p>
<p>Terry Kalkas, 402 Lans Road, Beaver Falls ,Pennsylvania</p>
<p>Eric Adams, 20 Post Road, Sudbury ,Massachusetts</p>
<p>Hubert Sims, 328A Brook Road, Roanoke VA</p>
<p>Amy Wilde, 334 Bayshore Pkwy, Mountain View ,California</p>
<p>Sal Carpenter, 73 6th Street, Boston ,Massachusetts</p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)"><strong>知识点补充：</strong></span>再次提醒，显示屏幕上的结果只是临时的，原文本list并没有发生改变。</p>
<p> </p>
<p> </p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)"><strong>范例4</strong></span><strong><span style="color: rgba(255, 0, 0, 1)">：</span>[option] </strong><strong>常用选项 –n</strong><strong>只打印经过sed </strong><strong>特殊处理的那一行(</strong><strong>或者动作)</strong><strong>才会被列出来，通常与’command’ </strong><strong>常用命令p</strong><strong>打印出某个选择的资料。</strong></p>
<p>[root@cloucentos6 home]# <span style="color: rgba(255, 0, 0, 1)">sed  -n  's/MA/Massachusetts/p'  list</span></p>
<p>John Daggett, 341 King Road, Plymouth Massachusetts</p>
<p>Eric Adams, 20 Post Road, Sudbury Massachusetts</p>
<p>Sal Carpenter, 73 6th Street, Boston Massachusetts</p>
<p> </p>
<p>[root@cloucentos6 home]# <span style="color: rgba(255, 0, 0, 1)">cat  -n  list  |  sed  - n  '4p'</span></p>
<p>     4     Terry Kalkas, 402 Lans Road, Beaver Falls PA</p>
<p> </p>
<p>[root@cloucentos6 home]#<span style="color: rgba(255, 0, 0, 1)"> cat  -n  list  |  sed  -n  '1,4p'</span></p>
<p>     1     John Daggett, 341 King Road, Plymouth MA</p>
<p>     2     Alice Ford, 22 EAST Broadway, Richmond VA</p>
<p>     3     Orville Thomas, 11345 Oak Bridge Road, Tulsa OK</p>
<p>     4     Terry Kalkas, 402 Lans Road, Beaver Falls PA</p>
<p>[root@cloucentos6 home]# <span style="color: rgba(255, 0, 0, 1)">cat  -n  list  |  sed  -n  '1p;4p'</span></p>
<p>     1     John Daggett, 341 King Road, Plymouth MA</p>
<p>     4     Terry Kalkas, 402 Lans Road, Beaver Falls PA</p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)">知识点补充：</span>2,$p打印第二行到最后一行，$p打印最后一行</p>
<p> </p>
<p> </p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)"><strong>范例5</strong></span><strong><span style="color: rgba(255, 0, 0, 1)">：</span>’command’ </strong><strong>常用命令d</strong><strong>删除指定行</strong></p>
<p>[root@cloucentos6 home]# <span style="color: rgba(255, 0, 0, 1)">cat  -n  list  |  sed  '4d'</span></p>
<p>     1     John Daggett, 341 King Road, Plymouth MA</p>
<p>     2     Alice Ford, 22 EAST Broadway, Richmond VA</p>
<p>     3     Orville Thomas, 11345 Oak Bridge Road, Tulsa OK</p>
<p>     5     Eric Adams, 20 Post Road, Sudbury MA</p>
<p>     6     Hubert Sims, 328A Brook Road, Roanoke VA</p>
<p>     7     Amy Wilde, 334 Bayshore Pkwy, Mountain View CA</p>
<p>     8     Sal Carpenter, 73 6th Street, Boston MA</p>
<p> </p>
<p>[root@cloucentos6 home]# <span style="color: rgba(255, 0, 0, 1)">cat  -n  list  |  sed  '1,4d'</span></p>
<p>     5     Eric Adams, 20 Post Road, Sudbury MA</p>
<p>     6     Hubert Sims, 328A Brook Road, Roanoke VA</p>
<p>     7     Amy Wilde, 334 Bayshore Pkwy, Mountain View CA</p>
<p>     8     Sal Carpenter, 73 6th Street, Boston MA</p>
<p> </p>
<p>[root@cloucentos6 home]#<span style="color: rgba(255, 0, 0, 1)"> cat  -n  list  |  sed  '1d;4d;8d'</span></p>
<p>     2     Alice Ford, 22 EAST Broadway, Richmond VA</p>
<p>     3     Orville Thomas, 11345 Oak Bridge Road, Tulsa OK</p>
<p>     5     Eric Adams, 20 Post Road, Sudbury MA</p>
<p>     6     Hubert Sims, 328A Brook Road, Roanoke VA</p>
<p>     7     Amy Wilde, 334 Bayshore Pkwy, Mountain View CA</p>
<p> </p>
<p><span style="color: rgba(255, 0, 0, 1)">知识点补充：</span> $d删除最后一行，/^$/d删除空行，50,$d删除从50行到最后一行，</p>
<p> </p>
 
                    
            
                <div style="margin-top: 10px;">
                  </div> 
        </section>
	 
        <footer class="post-footer">
            <section class="author">
                                            </section>
        </footer>
        <p class="mt10">相关文章：</p>
        <div style="width: 100%;" class="contentcard">
      
            <div style="width: 100%;height: auto;" class="carditem litem clearfix"> 
                    <ul style="padding-left: 0rem;" class="cardcont">
                                            </ul>
               </div>   
         </div>
    </article>

  

</div>

<div class="rigthbox contentcard mt10">
 
          <div style="height: auto;" class="carditem litem">
    <div class="cardtit">猜你喜欢 </div>
        <ul class="cardcont">
                        </ul>
   </div> 

<div style="height: auto;" class="carditem litem">
    <div class="cardtit">相关资源 </div>
        <ul class="cardcont">
              
                            </ul>
   </div>
   
    <div style="height: auto;" class="carditem litem">
     <div class="cardtit">相似解决方案 </div>
         <ul class="cardcont">
                          </ul>
    </div>
  
   <div style="height: auto;background-color: #ddd;text-align: center;" class="carditem litem">
    <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-5446233687289962" data-ad-slot="2607637140"  data-ad-format="auto"  data-full-width-responsive="true"></ins><script>(adsbygoogle = window.adsbygoogle || []).push({});</script>
</div> 
   <div  style="height: auto;" class="carditem litem mt20">
    <div class="cardtit">热门标签  </div>
    <div class="tagbox">
                    <a target="_blank" title="Java" href="/default/index/tags?cid=164&cname=Java" >Java</a>
                        <a target="_blank" title="Python" href="/default/index/tags?cid=367&cname=Python" >Python</a>
                        <a target="_blank" title="linux" href="/default/index/tags?cid=274&cname=linux" >linux</a>
                        <a target="_blank" title="javascript" href="/default/index/tags?cid=169&cname=javascript" >javascript</a>
                        <a target="_blank" title="Mysql" href="/default/index/tags?cid=237&cname=Mysql" >Mysql</a>
                        <a target="_blank" title="C#" href="/default/index/tags?cid=187&cname=C%23" >C#</a>
                        <a target="_blank" title="Docker" href="/default/index/tags?cid=243&cname=Docker" >Docker</a>
                        <a target="_blank" title="算法" href="/default/index/tags?cid=344&cname=%E7%AE%97%E6%B3%95" >算法</a>
                        <a target="_blank" title="前端" href="/default/index/tags?cid=160&cname=%E5%89%8D%E7%AB%AF" >前端</a>
                        <a target="_blank" title="SpringBoot" href="/default/index/tags?cid=168&cname=SpringBoot" >SpringBoot</a>
                        <a target="_blank" title="Redis" href="/default/index/tags?cid=227&cname=Redis" >Redis</a>
                        <a target="_blank" title="Vue" href="/default/index/tags?cid=236&cname=Vue" >Vue</a>
                        <a target="_blank" title="spring" href="/default/index/tags?cid=696&cname=spring" >spring</a>
                        <a target="_blank" title="设计模式" href="/default/index/tags?cid=632&cname=%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F" >设计模式</a>
                        <a target="_blank" title=".net core" href="/default/index/tags?cid=381&cname=.net+core" >.net core</a>
                        <a target="_blank" title=".net" href="/default/index/tags?cid=300&cname=.net" >.net</a>
                        <a target="_blank" title="kubernetes" href="/default/index/tags?cid=2179&cname=kubernetes" >kubernetes</a>
                        <a target="_blank" title="c++" href="/default/index/tags?cid=312&cname=c%2B%2B" >c++</a>
                        <a target="_blank" title="数据库" href="/default/index/tags?cid=284&cname=%E6%95%B0%E6%8D%AE%E5%BA%93" >数据库</a>
                        <a target="_blank" title="数据结构" href="/default/index/tags?cid=247&cname=%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84" >数据结构</a>
                        <a target="_blank" title="大数据" href="/default/index/tags?cid=888&cname=%E5%A4%A7%E6%95%B0%E6%8D%AE" >大数据</a>
                        <a target="_blank" title="js" href="/default/index/tags?cid=159&cname=js" >js</a>
                        <a target="_blank" title="机器学习" href="/default/index/tags?cid=171&cname=%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0" >机器学习</a>
                        <a target="_blank" title="微服务" href="/default/index/tags?cid=832&cname=%E5%BE%AE%E6%9C%8D%E5%8A%A1" >微服务</a>
                        <a target="_blank" title="Android" href="/default/index/tags?cid=282&cname=Android" >Android</a>
                        <a target="_blank" title="Go" href="/default/index/tags?cid=839&cname=Go" >Go</a>
                        <a target="_blank" title="程序员" href="/default/index/tags?cid=327&cname=%E7%A8%8B%E5%BA%8F%E5%91%98" >程序员</a>
                        <a target="_blank" title="面试" href="/default/index/tags?cid=637&cname=%E9%9D%A2%E8%AF%95" >面试</a>
                        <a target="_blank" title="JVM" href="/default/index/tags?cid=727&cname=JVM" >JVM</a>
                        <a target="_blank" title="ASP.net core" href="/default/index/tags?cid=179&cname=ASP.net+core" >ASP.net core</a>
                        <a target="_blank" title="云原生" href="/default/index/tags?cid=22056&cname=%E4%BA%91%E5%8E%9F%E7%94%9F" >云原生</a>
                        <a target="_blank" title="人工智能" href="/default/index/tags?cid=270&cname=%E4%BA%BA%E5%B7%A5%E6%99%BA%E8%83%BD" >人工智能</a>
                        <a target="_blank" title="后端" href="/default/index/tags?cid=1089&cname=%E5%90%8E%E7%AB%AF" >后端</a>
                        <a target="_blank" title="PHP" href="/default/index/tags?cid=281&cname=PHP" >PHP</a>
                        <a target="_blank" title="git" href="/default/index/tags?cid=226&cname=git" >git</a>
                        <a target="_blank" title="CSS" href="/default/index/tags?cid=817&cname=CSS" >CSS</a>
                        <a target="_blank" title="golang" href="/default/index/tags?cid=409&cname=golang" >golang</a>
                        <a target="_blank" title="k8s" href="/default/index/tags?cid=5067&cname=k8s" >k8s</a>
                        <a target="_blank" title="Nginx" href="/default/index/tags?cid=373&cname=Nginx" >Nginx</a>
                        <a target="_blank" title="Django" href="/default/index/tags?cid=634&cname=Django" >Django</a>
                        <a target="_blank" title="mybatis" href="/default/index/tags?cid=720&cname=mybatis" >mybatis</a>
                        <a target="_blank" title="深度学习" href="/default/index/tags?cid=345&cname=%E6%B7%B1%E5%BA%A6%E5%AD%A6%E4%B9%A0" >深度学习</a>
                        <a target="_blank" title="多线程" href="/default/index/tags?cid=986&cname=%E5%A4%9A%E7%BA%BF%E7%A8%8B" >多线程</a>
                        <a target="_blank" title="React" href="/default/index/tags?cid=560&cname=React" >React</a>
                        <a target="_blank" title="架构" href="/default/index/tags?cid=2070&cname=%E6%9E%B6%E6%9E%84" >架构</a>
                        <a target="_blank" title="devops" href="/default/index/tags?cid=2662&cname=devops" >devops</a>
                        <a target="_blank" title="爬虫" href="/default/index/tags?cid=905&cname=%E7%88%AC%E8%99%AB" >爬虫</a>
                        <a target="_blank" title="云计算" href="/default/index/tags?cid=361&cname=%E4%BA%91%E8%AE%A1%E7%AE%97" >云计算</a>
                        <a target="_blank" title="Spring Boot" href="/default/index/tags?cid=201&cname=Spring+Boot" >Spring Boot</a>
                        <a target="_blank" title="LeetCode" href="/default/index/tags?cid=342&cname=LeetCode" >LeetCode</a>
                </div>
       
   </div>
   
        <div id="rightadbox" style="height: 300px;background-color: #ddd;text-align: center;" class="carditem litem">
            <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-5446233687289962" data-ad-slot="2607637140"  data-ad-format="auto"  data-full-width-responsive="true"></ins><script>(adsbygoogle = window.adsbygoogle || []).push({});</script>
        </div> 
</div>
<div class="clearfix"></div>
</main>
    
<div class="yllinks alink"></div>
 

<footer class="site-footer clearfix">
<section class="copyright">By &copy; 2026 <a href="/" title="www.likecs.com">likecs</a> 版权所有,<br/>本站所有数据收集于网络如有侵犯到您的权益请联系 进行下架处理1。 </section>
<section class="poweredby">  <a target="_blank" href="https://beian.miit.gov.cn/">粤ICP备22038628号</a>Powered By  WordPress </section>
<script charset="UTF-8" id="LA_COLLECT" src="//sdk.51.la/js-sdk-pro.min.js"></script>
<script>LA.init({id: "Je3PjbvUssp6BbvY",ck: "Je3PjbvUssp6BbvY"})</script>
<script>
var _hmt = _hmt || [];
(function() {
  var hm = document.createElement("script");
  hm.src = "https://hm.baidu.com/hm.js?2eb031e42d29b7c1a1f16948d2ae2a9f";
  var s = document.getElementsByTagName("script")[0]; 
  s.parentNode.insertBefore(hm, s);
})();
</script>
</footer>  
</div>
<script>
    $(function(){
                    $(".post-content").append('<p style="padding: 20px;color: #cacaca;">原文链接：https://www.cnblogs.com/zoulongbin/p/6909381.html</p>')  
            }) 
</script> 
</body>
</html>