📄 ch28_05.htm
字号:
<HTML><!--Distributed by F --><HEAD><TITLE>[Chapter 28] 28.5 Comparing Files Alongside One Another </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="1998-08-04T21:44:44Z"><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="ch28_01.htm"TITLE="28. Comparing Files"><LINKREL="prev"HREF="ch28_04.htm"TITLE="28.4 Side-by-Side diffs: sdiff "><LINKREL="next"HREF="ch28_06.htm"TITLE="28.6 Choosing Sides with sdiff "></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="ch28_04.htm"TITLE="28.4 Side-by-Side diffs: sdiff "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 28.4 Side-by-Side diffs: sdiff "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><B><FONTFACE="ARIEL,HELVETICA,HELV,SANSERIF"SIZE="-1">Chapter 28<BR>Comparing Files</FONT></B></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch28_06.htm"TITLE="28.6 Choosing Sides with sdiff "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 28.6 Choosing Sides with sdiff "BORDER="0"></A></TD></TR></TABLE> <HRALIGN="LEFT"WIDTH="515"TITLE="footer"></DIV><DIVCLASS="SECT1"><H2CLASS="sect1"><ACLASS="title"NAME="UPT-ART-9019">28.5 Comparing Files Alongside One Another </A></H2><TABLECLASS="para.programreference"BORDER="1"><TR><THVALIGN="TOP"><ACLASS="programreference"HREF="examples/index.htm"TITLE="twin">twin</A><BR></TH><TDVALIGN="TOP"><ACLASS="indexterm"NAME="AUTOID-31235"></A><ACLASS="indexterm"NAME="AUTOID-31239"></A><SPANCLASS="link"><EMCLASS="emphasis">sdiff</EM> (<ACLASS="linkend"HREF="ch28_04.htm"TITLE="Side-by-Side diffs: sdiff ">28.4</A>)</SPAN>can be used to show <EMCLASS="emphasis">diff</EM>ed files side-by-side,so that you can compare them in context. The <EMCLASS="emphasis">twin</EM> program on the CD-ROMis similar to <EMCLASS="emphasis">sdiff</EM>, but it allows you to scrollthrough files alongside one another. <EMCLASS="emphasis">twin</EM> is alsonicer about wrapping lines to make the files easier to read.</TD></TR></TABLE><PCLASS="para">The <EMCLASS="emphasis">twin</EM> program displays the two files in a split screen,with line numbers in the left margin:</P><PCLASS="para"><BLOCKQUOTECLASS="screen"><PRECLASS="screen">1 |<EMCLASS="emphasis"> You can use the bc program to |You can also use bc to</EM> 3 convert from decimal to hex. |convert from decimal to hex. 4 To do so, use obase to |To do so, use obase to 5 set the base for output: |set the base for output: 6 | 7 obase=16 | obase=16 ...</PRE></BLOCKQUOTE></P><PCLASS="para">The highlighted line might be underlined on your terminal.This line is the one that <EMCLASS="emphasis">twin</EM> notices is different between thefiles. </P><PCLASS="para"><EMCLASS="emphasis">twin</EM> uses a limited number of commands to move around in the files, which are shown when you first start up the program. You can use the <CODECLASS="literal">u</CODE> command to move both filesup, and the <CODECLASS="literal">v</CODE> command to move both files down. Thereare also commands for moving only one side of the screen - for example,<CODECLASS="literal">j</CODE> to move the right-side text down.</P><DIVCLASS="sect1info"><PCLASS="SECT1INFO">- <SPANCLASS="authorinitials">LM</SPAN></P></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="ch28_04.htm"TITLE="28.4 Side-by-Side diffs: sdiff "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 28.4 Side-by-Side diffs: sdiff "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="ch28_06.htm"TITLE="28.6 Choosing Sides with sdiff "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 28.6 Choosing Sides with sdiff "BORDER="0"></A></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172">28.4 Side-by-Side diffs: sdiff </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">28.6 Choosing Sides with sdiff </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
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -