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		<title>Linux透過「head」、「tail」顯示檔案指定行數內容</title>
		<link>https://ailog.tw/lifelog/2023/03/19/linux-head-tail-cat/</link>
		
		<dc:creator><![CDATA[blackjack]]></dc:creator>
		<pubDate>Sun, 19 Mar 2023 06:02:45 +0000</pubDate>
				<category><![CDATA[3C資訊]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[head]]></category>
		<category><![CDATA[tail]]></category>
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					<description><![CDATA[在Linux中有時會需要顯示檔案的特定行數內容，小編今天要來介紹如何透過「head」、「tail」等指令進行。 &#8230; <p class="link-more"><a href="https://ailog.tw/lifelog/2023/03/19/linux-head-tail-cat/" class="more-link">閱讀全文<span class="screen-reader-text">〈Linux透過「head」、「tail」顯示檔案指定行數內容〉</span></a></p>]]></description>
										<content:encoded><![CDATA[<p><span style="font-size: 14pt; font-family: verdana, geneva;">在Linux中有時會需要顯示檔案的特定行數內容，小編今天要來介紹如何透過「head」、「tail」等指令進行。</span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;"><span id="more-15332"></span></span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">本範例使用的「/tmp/testfile.sh」檔案內容如下：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">1</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">22</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">333</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">4444</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">55555</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">666666</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">7777777</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">88888888</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">999999999</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">0000000000</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-</span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">範例1：顯示檔案前5行內容</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;"><span style="color: #ff0000;">head</span> -n 5 /tmp/testfile.sh</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;"><img fetchpriority="high" decoding="async" class="alignnone wp-image-15337 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-01.png" alt="" width="623" height="245" srcset="https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-01.png 623w, https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-01-300x118.png 300w" sizes="(max-width: 623px) 100vw, 623px" /></span></p>
<p><span style="font-family: verdana, geneva; font-size: 14pt;">範例2：顯示檔案後5行內容<br />
<span style="color: #ff0000;">tail</span> -n 5 /tmp/testfile.sh</span><br />
<span style="font-family: verdana, geneva; font-size: 14pt;"><img decoding="async" class="alignnone wp-image-15338 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-02.png" alt="" width="625" height="248" srcset="https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-02.png 625w, https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-02-300x119.png 300w" sizes="(max-width: 625px) 100vw, 625px" /></span></p>
<p><span style="font-family: verdana, geneva; font-size: 14pt;">範例3：顯示檔案後6~8行內容</span><br />
<span style="font-family: verdana, geneva; font-size: 14pt;"><span style="color: #ff0000;">head</span> -n 8 /tmp/testfile.sh | <span style="color: #ff0000;">tail</span> -n 3<br />
<img decoding="async" class="alignnone wp-image-15339 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-03.png" alt="" width="809" height="174" srcset="https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-03.png 809w, https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-03-300x65.png 300w, https://ailog.tw/lifelog/wp-content/uploads/2023/03/linux-head-tail-cat-03-768x165.png 768w" sizes="(max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px" /></span></p>
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