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40 lines
1.6 KiB
HTML
40 lines
1.6 KiB
HTML
<h1 id="rev">rev</h1>
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<p>将文件内容以字符为单位反序输出</p>
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<h2 id="补充说明">补充说明</h2>
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<p><strong>rev命令</strong> 将文件中的每行内容以字符为单位反序输出，即第一个字符最后输出，最后一个字符最先输出，依次类推。</p>
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<h3 id="语法">语法</h3>
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<pre><code class="language-bash">rev(参数)</code></pre>
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<h3 id="参数">参数</h3>
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<p>文件：指定要反序显示内容的文件。</p>
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<h3 id="实例">实例</h3>
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<pre><code class="language-bash">[root@localhost ~]# cat iptables.bak
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# Generated by iptables-save v1.3.5 on Thu Dec 26 21:25:15 2013
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*filter
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:INPUT DROP [48113:2690676]
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:FORWARD accept [0:0]
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:OUTPUT ACCEPT [3381959:1818595115]
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-A INPUT -i lo -j ACCEPT
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-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
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-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
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-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
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-A INPUT -p icmp -j ACCEPT
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-A OUTPUT -o lo -j ACCEPT
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COMMIT
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# Completed on Thu Dec 26 21:25:15 2013
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[root@localhost ~]# rev iptables.bak
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3102 51:52:12 62 ceD uhT no 5.3.1v evas-selbatpi yb detareneG #
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retlif*
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]6760962:31184[ PORD TUPNI:
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]0:0[ TPECCA DRAWROF:
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]5115958181:9591833[ TPECCA TUPTUO:
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TPECCA j- ol i- TUPNI A-
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TPECCA j- 22 tropd-- pct m- pct p- TUPNI A-
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TPECCA j- 08 tropd-- pct m- pct p- TUPNI A-
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TPECCA j- DEHSILBATSE,DETALER etats-- etats m- TUPNI A-
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TPECCA j- pmci p- TUPNI A-
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TPECCA j- ol o- TUPTUO A-
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TIMMOC
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3102 51:52:12 62 ceD uhT no detelpmoC #</code></pre>
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