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<HTML><!--Distributed by F --><HEAD><TITLE>[Chapter 36] Sorting</TITLE><METANAME="DC.title"CONTENT="UNIX Power Tools"><METANAME="DC.creator"CONTENT="Jerry Peek, Tim O'Reilly & Mike Loukides"><METANAME="DC.publisher"CONTENT="O'Reilly & Associates, Inc."><METANAME="DC.date"CONTENT="1998-08-04T21:48:37Z"><METANAME="DC.type"CONTENT="Text.Monograph"><METANAME="DC.format"CONTENT="text/html"SCHEME="MIME"><METANAME="DC.source"CONTENT="1-56592-260-3"SCHEME="ISBN"><METANAME="DC.language"CONTENT="en-US"><METANAME="generator"CONTENT="Jade 1.1/O'Reilly DocBook 3.0 to HTML 4.0"><LINKREV="made"HREF="mailto:online-books@oreilly.com"TITLE="Online Books Comments"><LINKREL="up"HREF="part05.htm"TITLE="V. Text Editing "><LINKREL="prev"HREF="ch35_23.htm"TITLE="35.23 Rotating Text "><LINKREL="next"HREF="ch36_02.htm"TITLE="36.2 Sort Fields: How sort Sorts "></HEAD><BODYBGCOLOR="#FFFFFF"TEXT="#000000"><DIVCLASS="htmlnav"><H1><IMGSRC="gifs/smbanner.gif"ALT="UNIX Power Tools"USEMAP="#srchmap"BORDER="0"></H1><MAPNAME="srchmap"><AREASHAPE="RECT"COORDS="0,0,466,58"HREF="index.htm"ALT="UNIX Power Tools"><AREASHAPE="RECT"COORDS="467,0,514,18"HREF="jobjects/fsearch.htm"ALT="Search this book"></MAP><TABLEWIDTH="515"BORDER="0"CELLSPACING="0"CELLPADDING="0"><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch35_23.htm"TITLE="35.23 Rotating Text "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 35.23 Rotating Text "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><B><FONTFACE="ARIEL,HELVETICA,HELV,SANSERIF"SIZE="-1">Chapter 36</FONT></B></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch36_02.htm"TITLE="36.2 Sort Fields: How sort Sorts "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 36.2 Sort Fields: How sort Sorts "BORDER="0"></A></TD></TR></TABLE> <HRALIGN="LEFT"WIDTH="515"TITLE="footer"></DIV><DIVCLASS="CHAPTER"><H1CLASS="chapter"><ACLASS="title"NAME="UPT-CHP-36">36. Sorting</A></H1><DIVCLASS="htmltoc"><P><B>Contents:</B><BR><ACLASS="sect1"HREF="#UPT-ART-7640"TITLE="36.1 Putting Things in Order ">Putting Things in Order </A><BR><ACLASS="sect1"HREF="ch36_02.htm"TITLE="36.2 Sort Fields: How sort Sorts ">Sort Fields: How sort Sorts </A><BR><ACLASS="sect1"HREF="ch36_03.htm"TITLE="36.3 Changing the Field Delimiter ">Changing the Field Delimiter </A><BR><ACLASS="sect1"HREF="ch36_04.htm"TITLE="36.4 Confusion with White Space Field Delimiters ">Confusion with White Space Field Delimiters </A><BR><ACLASS="sect1"HREF="ch36_05.htm"TITLE="36.5 Alphabetic and Numeric Sorting ">Alphabetic and Numeric Sorting </A><BR><ACLASS="sect1"HREF="ch36_06.htm"TITLE="36.6 Miscellaneous sort Hints ">Miscellaneous sort Hints </A><BR><ACLASS="sect1"HREF="ch36_07.htm"TITLE="36.7 Sorting Multiline Entries ">Sorting Multiline Entries </A><BR><ACLASS="sect1"HREF="ch36_08.htm"TITLE="36.8 lensort: Sort Lines by Length ">lensort: Sort Lines by Length </A><BR><ACLASS="sect1"HREF="ch36_09.htm"TITLE="36.9 Sorting a List of People by Last Name ">Sorting a List of People by Last Name </A></P><P></P></DIV><DIVCLASS="sect1"><H2CLASS="sect1"><ACLASS="title"NAME="UPT-ART-7640">36.1 Putting Things in Order </A></H2><PCLASS="para">Sorting a file under UNIX is easy, right? Of course it is, if allyou want to do is sort a list of single words, or sort lines startingwith the first character in the line. But if you want to do morethan that, there's a lot more to the <EMCLASS="emphasis">sort</EM> command than typing:</P><PCLASS="para"><BLOCKQUOTECLASS="screen"><PRECLASS="screen">% <CODECLASS="userinput"><B>sort</B></CODE> <CODECLASS="replaceable"><I>filename</I></CODE></PRE></BLOCKQUOTE></P><ULCLASS="itemizedlist"><LICLASS="listitem"><PCLASS="para">Article<ACLASS="xref"HREF="ch36_02.htm"TITLE="Sort Fields: How sort Sorts ">36.2</A>describes how to select individual fields from a line for <EMCLASS="emphasis">sort</EM>to operate on.</P></LI><LICLASS="listitem"><PCLASS="para">Article <ACLASS="xref"HREF="ch36_03.htm"TITLE="Changing the Field Delimiter ">36.3</A>describes how to change the field delimiter from "white space" tosome other character.</P></LI><LICLASS="listitem"><PCLASS="para">Article<ACLASS="xref"HREF="ch36_04.htm"TITLE="Confusion with White Space Field Delimiters ">36.4</A>describes the kinds of problems that you can encounter if fields<EMCLASS="emphasis">are</EM> delimited by white space.</P></LI><LICLASS="listitem"><PCLASS="para">Article<ACLASS="xref"HREF="ch36_05.htm"TITLE="Alphabetic and Numeric Sorting ">36.5</A>clarifies the distinctions between alphabetic and numeric sorting.</P></LI><LICLASS="listitem"><PCLASS="para">Article <ACLASS="xref"HREF="ch36_06.htm"TITLE="Miscellaneous sort Hints ">36.6</A>gives miscellaneous hints about useful <EMCLASS="emphasis">sort</EM> options.</P></LI></UL><PCLASS="para">But learning the mechanics of <EMCLASS="emphasis">sort</EM> isn't the end of the story.Like most of the other things you'll find in the UNIX toolbox,<EMCLASS="emphasis">sort</EM> is even more powerful when it's used with other programs.For example, you can:</P><ULCLASS="itemizedlist"><LICLASS="listitem"><PCLASS="para">Sort paragraphs, or other multiline entries (article<ACLASS="xref"HREF="ch36_07.htm"TITLE="Sorting Multiline Entries ">36.7</A>).</P></LI><LICLASS="listitem"><PCLASS="para">Sort lines by how long they are (article<ACLASS="xref"HREF="ch36_08.htm"TITLE="lensort: Sort Lines by Length ">36.8</A>).</P></LI><LICLASS="listitem"><PCLASS="para">Sort a list of names by last name, whether or not there's a middlename as well (article<ACLASS="xref"HREF="ch36_09.htm"TITLE="Sorting a List of People by Last Name ">36.9</A>).</P></LI></UL><DIVCLASS="sect1info"><PCLASS="SECT1INFO">- <SPANCLASS="authorinitials">TOR</SPAN></P></DIV></DIV></DIV><DIVCLASS="htmlnav"><P></P><HRALIGN="LEFT"WIDTH="515"TITLE="footer"><TABLEWIDTH="515"BORDER="0"CELLSPACING="0"CELLPADDING="0"><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch35_23.htm"TITLE="35.23 Rotating Text "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 35.23 Rotating Text "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><ACLASS="book"HREF="index.htm"TITLE="UNIX Power Tools"><IMGSRC="gifs/txthome.gif"SRC="gifs/txthome.gif"ALT="UNIX Power Tools"BORDER="0"></A></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch36_02.htm"TITLE="36.2 Sort Fields: How sort Sorts "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 36.2 Sort Fields: How sort Sorts "BORDER="0"></A></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172">35.23 Rotating Text </TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><ACLASS="index"HREF="index/idx_0.htm"TITLE="Book Index"><IMGSRC="gifs/index.gif"SRC="gifs/index.gif"ALT="Book Index"BORDER="0"></A></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172">36.2 Sort Fields: How sort Sorts </TD></TR></TABLE><HRALIGN="LEFT"WIDTH="515"TITLE="footer"><IMGSRC="gifs/smnavbar.gif"SRC="gifs/smnavbar.gif"USEMAP="#map"BORDER="0"ALT="The UNIX CD Bookshelf Navigation"><MAPNAME="map"><AREASHAPE="RECT"COORDS="0,0,73,21"HREF="../index.htm"ALT="The UNIX CD Bookshelf"><AREASHAPE="RECT"COORDS="74,0,163,21"HREF="index.htm"ALT="UNIX Power Tools"><AREASHAPE="RECT"COORDS="164,0,257,21"HREF="../unixnut/index.htm"ALT="UNIX in a Nutshell"><AREASHAPE="RECT"COORDS="258,0,321,21"HREF="../vi/index.htm"ALT="Learning the vi Editor"><AREASHAPE="RECT"COORDS="322,0,378,21"HREF="../sedawk/index.htm"ALT="sed & awk"><AREASHAPE="RECT"COORDS="379,0,438,21"HREF="../ksh/index.htm"ALT="Learning the Korn Shell"><AREASHAPE="RECT"COORDS="439,0,514,21"HREF="../lrnunix/index.htm"ALT="Learning the UNIX Operating System"></MAP></DIV></BODY></HTML>⌨️ 快捷键说明
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