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<HTML><!--Distributed by F --><HEAD><TITLE>[Chapter 32] GNU Emacs</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="1998-08-04T21:46:32Z"><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="ch31_16.htm"TITLE="31.16 vi Macro for Splitting Long Lines "><LINKREL="next"HREF="ch32_02.htm"TITLE="32.2 Emacs Features: A Laundry List "></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="ch31_16.htm"TITLE="31.16 vi Macro for Splitting Long Lines "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 31.16 vi Macro for Splitting Long Lines "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><B><FONTFACE="ARIEL,HELVETICA,HELV,SANSERIF"SIZE="-1">Chapter 32</FONT></B></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch32_02.htm"TITLE="32.2 Emacs Features: A Laundry List "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 32.2 Emacs Features: A Laundry List "BORDER="0"></A></TD></TR></TABLE> <HRALIGN="LEFT"WIDTH="515"TITLE="footer"></DIV><DIVCLASS="CHAPTER"><H1CLASS="chapter"><ACLASS="title"NAME="UPT-CHP-32">32. GNU Emacs</A></H1><DIVCLASS="htmltoc"><P><B>Contents:</B><BR><ACLASS="sect1"HREF="#UPT-ART-5540"TITLE="32.1 Emacs: The Other Editor ">Emacs: The Other Editor </A><BR><ACLASS="sect1"HREF="ch32_02.htm"TITLE="32.2 Emacs Features: A Laundry List ">Emacs Features: A Laundry List </A><BR><ACLASS="sect1"HREF="ch32_03.htm"TITLE="32.3 Customizations and How to Avoid Them ">Customizations and How to Avoid Them </A><BR><ACLASS="sect1"HREF="ch32_04.htm"TITLE="32.4 Backup and Auto-Save Files ">Backup and Auto-Save Files </A><BR><ACLASS="sect1"HREF="ch32_05.htm"TITLE="32.5 Putting Emacs in Overwrite Mode ">Putting Emacs in Overwrite Mode </A><BR><ACLASS="sect1"HREF="ch32_06.htm"TITLE="32.6 Command Completion ">Command Completion </A><BR><ACLASS="sect1"HREF="ch32_07.htm"TITLE="32.7 Mike's Favorite Time Savers ">Mike's Favorite Time Savers </A><BR><ACLASS="sect1"HREF="ch32_08.htm"TITLE="32.8 Rational Searches ">Rational Searches </A><BR><ACLASS="sect1"HREF="ch32_09.htm"TITLE="32.9 Unset PWD Before Using Emacs ">Unset PWD Before Using Emacs </A><BR><ACLASS="sect1"HREF="ch32_10.htm"TITLE="32.10 Inserting Binary Characters into Files ">Inserting Binary Characters into Files </A><BR><ACLASS="sect1"HREF="ch32_11.htm"TITLE="32.11 Using Word Abbreviation Mode ">Using Word Abbreviation Mode </A><BR><ACLASS="sect1"HREF="ch32_12.htm"TITLE="32.12 Getting Around Emacs Flow Control Problems ">Getting Around Emacs Flow Control Problems </A><BR><ACLASS="sect1"HREF="ch32_13.htm"TITLE="32.13 An Absurd Amusement ">An Absurd Amusement </A></P><P></P></DIV><DIVCLASS="sect1"><H2CLASS="sect1"><ACLASS="title"NAME="UPT-ART-5540">32.1 Emacs: The Other Editor </A></H2><PCLASS="para"><ACLASS="indexterm"NAME="UPT-ART-5540-IX-EMACS-EDITOR-ADVANTAGES-OVER-OTHER-EDITORS"></A><ACLASS="indexterm"NAME="AUTOID-35800"></A><ACLASS="indexterm"NAME="AUTOID-35803"></A>The "other" interactive editor that's commonly used is Emacs. Emacsactually refers to a family of editors; versions of Emacs run underalmost any operating system available. However, the most important(and most commonly used) version of Emacs is "GNU Emacs,"developed by the Free Software Foundation.</P><TABLECLASS="para.programreference"BORDER="1"><TR><THVALIGN="TOP"><ACLASS="programreference"HREF="examples/index.htm"TITLE="emacs">emacs</A><BR></TH><TDVALIGN="TOP"> GNU Emacs is popular because it's the most powerful editor in theEmacs family; it is also available for free, under the terms of theFSF's General Public License. (You can also get it from the Power Toolsdisc.) Although there are certainlyreligious differences between Emacs users and <EMCLASS="emphasis">vi</EM> users, mostpeople agree that Emacs provides a much more powerful and richerworking environment.</TD></TR></TABLE><PCLASS="para">What's so good about Emacs, aside from the fact that it's free? Thereare any number of individual features that I could mention. (I'llgive a list of favorite features in article<ACLASS="xref"HREF="ch32_02.htm"TITLE="Emacs Features: A Laundry List ">32.2</A>.)In a word, though, the best feature of Emacs is the extent to which itinteracts with other UNIX features. For example, it has a built-in<SPANCLASS="link">email (<ACLASS="linkend"HREF="ch01_33.htm"TITLE="UNIX Networking and Communications ">1.33</A>)</SPAN>system so you can send and receive mail without leaving theeditor. It has tools for "editing" (deleting, copying, renaming)files, for running a UNIX shell within Emacs, and so on. The C shellhas a rather awkward command history mechanism; the Korn shell hassomething more elaborate. But imagine being able to recall and edityour commands as easily as you edit a letter!That's far beyond theabilities of any shell, but it's simple when you run a shell insideyour editor.</P><PCLASS="para">In this book, we can't give anywhere near as much attention to Emacs<SPANCLASS="link">as we can to <EMCLASS="emphasis">vi</EM> (<ACLASS="linkend"HREF="ch30_01.htm#UPT-ART-4990"TITLE="The vi and ex Editors: Why So Much Material? ">30.1</A>)</SPAN>,but we will point out some of its best featuresand a few tricks that will help you get the most out of it.</P><DIVCLASS="sect1info"><PCLASS="SECT1INFO">- <SPANCLASS="authorinitials">ML</SPAN>, <SPANCLASS="authorinitials">BR</SPAN>, <SPANCLASS="authorinitials">DC</SPAN> <SPANCLASS="bibliomisc">from O'Reilly & Associates' <CITECLASS="citetitle">Learning GNU Emacs</CITE></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="ch31_16.htm"TITLE="31.16 vi Macro for Splitting Long Lines "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 31.16 vi Macro for Splitting Long Lines "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="ch32_02.htm"TITLE="32.2 Emacs Features: A Laundry List "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 32.2 Emacs Features: A Laundry List "BORDER="0"></A></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172">31.16 vi Macro for Splitting Long Lines </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">32.2 Emacs Features: A Laundry List </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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