https://arolstar52-zhtest.hf.space/index.php?action=history&feed=atom&title=Cut_%28Unix%29Cut (Unix) - 版本历史2026-07-11T21:47:52Z在这个wiki上该页的修订历史MediaWiki 1.43.9https://arolstar52-zhtest.hf.space/index.php?title=Cut_(Unix)&diff=452479&oldid=previmported>Raymon090：// Edit via WikiMirror2022-09-26T09:06:24Z<p>// Edit via <a href="/index.php?title=W:zh:WP:MF&action=edit&redlink=1" class="new" title="W:zh:WP:MF（页面不存在）">WikiMirror</a></p>
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在電腦使用上，'''cut'''是一種[[Unix]][[命令行界面|命令行]]程式。它常用來截取每行輸入──通常是[[電腦檔案|檔案]]──的片段。<br />
<br />
一般截取行片段可以透過[[位元]]（<code>-b</code>）、[[字符]]、或者以分隔字符（<code>-d</code>—預設為[[製表鍵|跳位字元]]）分隔的欄位（<code>-f</code>）達成。每次做截取都必須給定範圍，包括下面四種之一：<code>N</code>, <code>N-M,</code> <code>N-</code>（<code>N</code>到行尾），或者<code>-M</code>（行頭到<code>M</code>）。<br />
<br />
== 範例 ==<br />
<br />
假設一個檔案名叫 '''file''' 包含下面數行：<br />
<br />
foo:bar:baz:qux:quux<br />
one:two:three:four:five:six:seven<br />
alpha:beta:gamma:delta:epsilon:zeta:eta:teta:iota:kappa:lambda:mu<br />
<br />
輸出每行第四到第十字元就是：<br />
<br />
% cut -c 4-10 file<br />
<br />
輸出結果：<br />
<br />
:bar:ba<br />
:two:th<br />
ha:beta<br />
<br />
使用冒號當欄位分隔字元輸出第五欄到每行行尾：<br />
<br />
% cut -d : -f 5- file<br />
<br />
輸出結果：<br />
<br />
quux<br />
five:six:seven<br />
epsilon:zeta:eta:teta:iota:kappa:lambda:mu<br />
<!--<br />
==Syntax== <br />
<br />
cut [-b] [-c] [-f list] [-n] [-d delim] [-s] [file]<br />
<br />
Flags which may be used include <br />
<br />
; -b : Bytes; a list following -b specifies a range of [[byte]]s which will be returned, e.g. cut -b1-66 would return the first 66 bytes of a line. NB If used in conjunction with -n, no [[multi-byte]] characters will be split. NNB. -b will only work on input lines of less than 1023 bytes<br />
; -c : Characters; a list following -c specifies a range of characters which will be returned, e.g. cut -c1-66 would return the first 66 characters of a line<br />
; -f : Specifies a field list, separated by a [[delimiter]]<br />
; list : A comma separated or blank separated list of integer denoted fields, incrementally ordered. The - indicator may be supplied as shorthand to allow inclusion of ranges of fields e.g. ''4-6'' for ranges 4–6 or ''5-'' as shorthand for field 5 to the end, etc.<br />
; -n : Used in combination with -b suppresses splits of [[multi-byte character]]s<br />
; -d : Delimiter; the character immediately following the -d option is the field delimiter for use in conjunction with the -f option; the default delimiter is ''tab''. Space and other characters with special meanings within the context of the [[Unix shell|shell]] in use must be enquoted or escaped as necessary.<br />
; -s : Bypasses lines which contain no field delimiters when -f is specified, unless otherwise indicated.<br />
; file : The file (and accompanying path if necessary) to process as input. If no file is specified then [[standard input]] will be used.<br />
--><br />
<br />
== 參見 ==<br />
* [[Unix实用程序列表]]<br />
* [[grep]]<br />
* [[paste (Unix)|paste]]<br />
<br />
== 外部連結 ==<br />
* [http://www.softpanorama.org/Tools/cut.shtml Softpanorama cut page]{{Wayback|url=http://www.softpanorama.org/Tools/cut.shtml |date=20130518002631 }}.<br />
* {{man|1|cut||remove sections from each line of files}}<br />
<br />
{{Unix命令}}<br />
<br />
[[Category:Unix文字处理实用工具]]<br />
[[Category:标准Unix程序]]<br />
[[Category:Unix SUS2008实用工具]]</div>imported>Raymon090