SeaRiver Blog

实力才是你一生最好的依靠!

日志

关于我

SeaRiver

强者恒强,弱者恒弱!

文章分类

join连接文件实例

2007-12-25 00:19:06| 分类： shell | 标签： |举报 |字号大中小订阅

下载LOFTER 我的照片书 |

使用join工具最明显的方法是从/etc/passwd中提取用户名和对应的主目录项，并从/etc/group文件中提取组名。组名在/etc/passwd文件中是以数字的格式出现在第四个域中的。类似地，它们在/etc/group文件中是在第三个域中出现的。

-o<格式>	按照指定的格式来显示结果。
-t<字符>	使用栏位的分隔字符。
-1<栏位>	连接[文件1]指定的栏位。
-2<栏位>	连接[文件2]指定的栏位。

[root@test-apache ~]# join -1 4 -2 3 -o 1.1 -o 2.1 -o 1.6 -t":" /etc/passwd /etc/group
root:root:/root
bin:bin:/bin
daemon:daemon:/sbin
adm:adm:/var/adm
lp:lp:/var/spool/lpd
nobody:nobody:/
sshd:sshd:/var/empty/sshd
...
dovecot:dovecot:/usr/libexec/dovecot
alias:nofiles:/var/qmail/alias
qmaild:nofiles:/var/qmail
qmaill:nofiles:/var/qmail
qmailp:nofiles:/var/qmail
qmailq:qmail:/var/qmail
qmailr:qmail:/var/qmail
qmails:qmail:/var/qmail
vpopmail:vchkpw:/home/vpopmail
logadmin:logadmin:/home/logadmin
mysql:mysql:/home/mysql

评论这张

转发至微博

阅读(660)| 评论(0)

历史上的今天

this.p={  m:2,
              b:2,
              loftPermalink:'',
              id:'fks_087068080086085069083083086095085095089067084084087068',
              blogTitle:'join连接文件实例',
              blogAbstract:'<P style=\"MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt\"\><SPAN style=\"FONT-FAMILY: 宋体; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'\"\>使用</SPAN\><SPAN lang=EN-US\><FONT face=\"Times New Roman\"\>join</FONT\></SPAN\><SPAN style=\"FONT-FAMILY: 宋体; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'\"\>工具最明显的方法是从</SPAN\><SPAN lang=EN-US\><FONT face=\"Times New Roman\"\>/etc/passwd</FONT\></SPAN\><SPAN style=\"FONT-FAMILY: 宋体; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'\"\>中提取用户名和对应的主目</SPAN\><SPAN style=\"FONT-FAMILY: 宋体; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'\"\>录项，并从</SPAN\><SPAN lang=EN-US\><FONT face=\"Times New Roman\"\>/etc/group</FONT\></SPAN\></P\>',
              blogTag:'',
              blogUrl:'blog/static/19800217200711250196836',
              isPublished:1,
              istop:false,
              type:0,
              modifyTime:1198513256039,
              publishTime:1198513146836,
              permalink:'blog/static/19800217200711250196836',
              commentCount:0,
              mainCommentCount:0,
              recommendCount:0,
              bsrk:-100,
              publisherId:0,
              recomBlogHome:false,
              currentRecomBlog:false,
              attachmentsFileIds:[],
              vote:{},
              groupInfo:{},
              friendstatus:'none',
              followstatus:'unFollow',
              pubSucc:'',
              visitorProvince:'',
              visitorCity:'',
              visitorNewUser:false,
              postAddInfo:{},
              mset:'000',
              mcon:'',
              srk:-100,
              remindgoodnightblog:false,
              isBlackVisitor:false,
              isShowYodaoAd:false,
              hostIntro:'强者恒强,弱者恒弱!',
              hmcon:'1',
              selfRecomBlogCount:'0',
              lofter_single:'<iframe width="140" height="560" style="overflow:hidden;" src="http://www.lofter.com/mailEntry.do?blogad=1&blog" frameBorder="0"></iframe>'
            }

{list a as x}
    {if !!x}
    <div class="iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
      {if x.visitorName==visitor.userName}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        {if x.moveFrom=='wap'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/wapblog.html?frompersonalbloghome"><span title="来自网易手机博客" class="iblock wapIcon"> </span></a>
        {elseif x.moveFrom=='iphone'}
          <a class="noul pnt" target="_blank"><span title="来自iPhone客户端" class="iblock iphoneIcon"> </span></a>
        {elseif x.moveFrom=='android'}
          <a class="noul pnt" target="_blank"><span title="来自Android客户端" class="iblock androidIcon"> </span></a>
        {elseif x.moveFrom=='mobile'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/emsblog.html?frompersonalbloghome"><span title="来自网易短信写博" class="iblock wapIcon"> </span></a>
        {/if}
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
          ${fn(x.visitorNickname,8)|escape}
        </a>
      </div>
    </div>
    {/if}
    {/list}

<#--最新日志，群博日志--> <#--推荐日志-->

<p class="fc06">推荐过这篇日志的人：</p>
    <div>
      {list a as x}
      {if !!x}
      <div class="iblock nbw-fce nbw-f40">
        <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
        <img alt="${x.recommenderNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.recommenderName)}"/>
        </a>
        <div class="cwd thide">
          <a class="fc03 m2a" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
            ${fn(x.recommenderNickname,6)|escape}
          </a>
        </div>
      </div>
      {/if}
      {/list}
    </div>
    {if !!b&&b.length>0}
    <p  class="fc06">他们还推荐了：</p>
    <ul>
    {list b as y}
      {if !!y}
        <li class="rrb"><span class="iblock">·</span><a class="fc03 m2a" target="_blank" href="http://blog.163.com/${y.recommendBlogPermalink}/?from=blog/static/19800217200711250196836">${y.recommendBlogTitle|escape}</a></li>
      {/if}
    {/list}
    </ul>
    {/if}

<#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇，下一篇--> <#-- 热度 -->

{list a as x}
    {if !!x}
    <div class="hotItem iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
      {if x.publisherUsername==visitor.userName}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
          ${fn(x.publisherNickname,8)|escape}
        </a>
      </div>
      <a class="f-myLikeIcons hottype {if x.type==1} js-liketype{elseif x.type==2} js-reblogtype{elseif x.type==3} js-sharetype{else}{/if}" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/"> </a>
    </div>
    {/if}
    {/list}

<#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->

页脚

我的照片书 - 手机博客 - 下载LOFTER APP - 订阅此博客

SeaRiver Blog

导航

日志

join连接文件实例

历史上的今天

最近读者

热度

评论

页脚