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<HTML><!--Distributed by F --><HEAD><TITLE>[Chapter 51] Miscellaneous Useful Programs and Curiosities</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="1998-08-04T21:57:16Z"><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="part09.htm"TITLE="IX. Miscellaneous "><LINKREL="prev"HREF="ch50_12.htm"TITLE="50.12 Common UNIX Error Messages "><LINKREL="next"HREF="ch51_02.htm"TITLE="51.2 How UNIX Keeps Time"></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="ch50_12.htm"TITLE="50.12 Common UNIX Error Messages "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 50.12 Common UNIX Error Messages "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><B><FONTFACE="ARIEL,HELVETICA,HELV,SANSERIF"SIZE="-1">Chapter 51</FONT></B></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch51_02.htm"TITLE="51.2 How UNIX Keeps Time"><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 51.2 How UNIX Keeps Time"BORDER="0"></A></TD></TR></TABLE> <HRALIGN="LEFT"WIDTH="515"TITLE="footer"></DIV><DIVCLASS="CHAPTER"><H1CLASS="chapter"><ACLASS="title"NAME="UPT-CHP-51">51. Miscellaneous Useful Programs and Curiosities</A></H1><DIVCLASS="htmltoc"><P><B>Contents:</B><BR><ACLASS="sect1"HREF="#UPT-ART-5110"TITLE="51.1 We Are Finally Getting to the Bottom of the Bucket ">We Are Finally Getting to the Bottom of the Bucket </A><BR><ACLASS="sect1"HREF="ch51_02.htm"TITLE="51.2 How UNIX Keeps Time">How UNIX Keeps Time</A><BR><ACLASS="sect1"HREF="ch51_03.htm"TITLE="51.3 ASCII Characters: Listing and Getting Values ">ASCII Characters: Listing and Getting Values </A><BR><ACLASS="sect1"HREF="ch51_04.htm"TITLE="51.4 Who's On? ">Who's On? </A><BR><ACLASS="sect1"HREF="ch51_05.htm"TITLE="51.5 Copy What You Do with script ">Copy What You Do with script </A><BR><ACLASS="sect1"HREF="ch51_06.htm"TITLE="51.6 Cleaning script Files ">Cleaning script Files </A><BR><ACLASS="sect1"HREF="ch51_07.htm"TITLE="51.7 When You Get Impatient ">When You Get Impatient </A><BR><ACLASS="sect1"HREF="ch51_08.htm"TITLE="51.8 Type Bang Splat. Don't Forget the Rabbit Ears ">Type Bang Splat. Don't Forget the Rabbit Ears </A><BR><ACLASS="sect1"HREF="ch51_09.htm"TITLE='51.9 Making a "Login" Shell'>Making a "Login" Shell</A><BR><ACLASS="sect1"HREF="ch51_10.htm"TITLE="51.10 The date Command ">The date Command </A><BR><ACLASS="sect1"HREF="ch51_11.htm"TITLE="51.11 Making an Arbitrary-Size File for Testing ">Making an Arbitrary-Size File for Testing </A><BR><ACLASS="sect1"HREF="ch51_12.htm"TITLE="51.12 You Don't Have Enough Smileys? ">You Don't Have Enough Smileys? </A></P><P></P></DIV><DIVCLASS="sect1"><H2CLASS="sect1"><ACLASS="title"NAME="UPT-ART-5110">51.1 We Are Finally Getting to the Bottom of the Bucket </A></H2><PCLASS="para">OK. This is it: the miscellaneous chapter in the miscellaneoussection of a rather miscellaneous book!</P><PCLASS="para">This chapter contains the articles that we edited out of otherchapters but didn't want to throw away, stuff that really didn't fitanywhere else, and even a few things that probably would have fit inquite well elsewhere...but were added so late that they would havegiven our production staff fits if we'd tried to shoehorn them intoearlier chapters!</P><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="ch50_12.htm"TITLE="50.12 Common UNIX Error Messages "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 50.12 Common UNIX Error Messages "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="ch51_02.htm"TITLE="51.2 How UNIX Keeps Time"><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 51.2 How UNIX Keeps Time"BORDER="0"></A></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172">50.12 Common UNIX Error Messages </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">51.2 How UNIX Keeps Time</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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