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<HTML><!--Distributed by F --><HEAD><TITLE>[Chapter 3] 3.3 Electronic Fortune Cookies </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="1998-08-04T21:32:31Z"><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="ch03_01.htm"TITLE="3. Logging Out"><LINKREL="prev"HREF="ch03_02.htm"TITLE="3.2 Running Commands at Bourne/Korn Shell Logout "><LINKREL="next"HREF="ch03_04.htm"TITLE="3.4 Automatic File Cleanup "></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="ch03_02.htm"TITLE="3.2 Running Commands at Bourne/Korn Shell Logout "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 3.2 Running Commands at Bourne/Korn Shell Logout "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><B><FONTFACE="ARIEL,HELVETICA,HELV,SANSERIF"SIZE="-1">Chapter 3<BR>Logging Out</FONT></B></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch03_04.htm"TITLE="3.4 Automatic File Cleanup "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 3.4 Automatic File Cleanup "BORDER="0"></A></TD></TR></TABLE> <HRALIGN="LEFT"WIDTH="515"TITLE="footer"></DIV><DIVCLASS="SECT1"><H2CLASS="sect1"><ACLASS="title"NAME="UPT-ART-1090">3.3 Electronic Fortune Cookies </A></H2><PCLASS="para"><ACLASS="indexterm"NAME="AUTOID-4052"></A></P><PCLASS="para"><BLOCKQUOTECLASS="screen"><PRECLASS="screen">It's a damn poor mind that can only think of one way to spell a word. - Andrew JacksonToo much of a good thing is WONDERFUL. - Mae WestDemocracy is a form of government that substitutes election by theincompetent many for appointment by the corrupt few. - G. B. ShawResearch is what I'm doing when I don't know what I'm doing. - Wernher von BraunI do not feel obliged to believe that same God who endowed us withsense, reason, and intellect had intended for us to forgo their use. - GalileoComputers are useless; they can only give answers. - PicassoDyslexics of the world, untie!</PRE></BLOCKQUOTE></P><PCLASS="para"> These messages come from a program named <EMCLASS="emphasis">fortune</EM>-usually in the<EMCLASS="emphasis">/usr/games</EM> directory.Every time you run <EMCLASS="emphasis">fortune</EM> you'll get a message like one of these.Mostusers run <EMCLASS="emphasis">fortune</EM> from their <EMCLASS="emphasis">.profile</EM> or <EMCLASS="emphasis">.logout</EM>files.If the directory <EMCLASS="emphasis">/usr/games</EM> isn't in your<SPANCLASS="link">search path (<ACLASS="linkend"HREF="ch08_07.htm"TITLE="Setting Your Search Path ">8.7</A>)</SPAN>,use the command <EMCLASS="emphasis">/usr/games/fortune</EM> instead.</P><PCLASS="para">Every time someone runs <EMCLASS="emphasis">fortune</EM>, the program has to write to its<EMCLASS="emphasis">fortunes.dat</EM> file.Computers with networked filesystems might put that fileon a "read-only" filesystem that most users can't write to.If you get that error and your system is set up to run<SPANCLASS="link"><EMCLASS="emphasis">rsh</EM> (<ACLASS="linkend"HREF="ch01_33.htm"TITLE="UNIX Networking and Communications ">1.33</A>)</SPAN>withoutneeding a password, ask your system administrator which computer hasthe filesystem mounted writable. Then run:</P><PCLASS="para"><BLOCKQUOTECLASS="screen"><PRECLASS="screen">% <CODECLASS="userinput"><B>rsh <CODECLASS="replaceable"><I>that-machine </I></CODE>/usr/games/fortune</B></CODE></PRE></BLOCKQUOTE></P><PCLASS="para">Some other versions use another way to keep track of fortunes; theirfiles don't need to be writable.</P><DIVCLASS="sect1info"><PCLASS="SECT1INFO">- <SPANCLASS="authorinitials">JP</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="ch03_02.htm"TITLE="3.2 Running Commands at Bourne/Korn Shell Logout "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 3.2 Running Commands at Bourne/Korn Shell Logout "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="ch03_04.htm"TITLE="3.4 Automatic File Cleanup "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 3.4 Automatic File Cleanup "BORDER="0"></A></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172">3.2 Running Commands at Bourne/Korn Shell Logout </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">3.4 Automatic File Cleanup </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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