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<HTML><!--Distributed by F --><HEAD><TITLE>[Chapter 29] 29.3 How Do I Spell That Word? </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="1998-08-04T21:45:01Z"><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="ch29_01.htm"TITLE="29. Spell Checking, Word Counting, and Textual Analysis"><LINKREL="prev"HREF="ch29_02.htm"TITLE="29.2 Check Spelling Interactively with ispell "><LINKREL="next"HREF="ch29_04.htm"TITLE="29.4 Inside spell "></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="ch29_02.htm"TITLE="29.2 Check Spelling Interactively with ispell "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 29.2 Check Spelling Interactively with ispell "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><B><FONTFACE="ARIEL,HELVETICA,HELV,SANSERIF"SIZE="-1">Chapter 29<BR>Spell Checking, Word Counting, and Textual Analysis</FONT></B></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch29_04.htm"TITLE="29.4 Inside spell "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 29.4 Inside spell "BORDER="0"></A></TD></TR></TABLE> <HRALIGN="LEFT"WIDTH="515"TITLE="footer"></DIV><DIVCLASS="SECT1"><H2CLASS="sect1"><ACLASS="title"NAME="UPT-ART-7959">29.3 How Do I Spell That Word? </A></H2><PCLASS="para">If you aren't sure which of two possible spellings is right,you can use the <EMCLASS="emphasis">spell</EM> command with no arguments to find out.<ACLASS="indexterm"NAME="AUTOID-31945"></A>Type the name of the command, followed by a RETURN, then type thealternative spellings you are considering.Press CTRL-d (on a line by itself) to end the list.The <EMCLASS="emphasis">spell</EM> command will echo back the word(s) in the list that itconsiders to be in error:</P><PCLASS="para"><BLOCKQUOTECLASS="screen"><PRECLASS="screen">$ <CODECLASS="userinput"><B>spellmisspellingmispelling</B></CODE><KBDCLASS="keycap">[CTRL-d]</KBD>mispelling</PRE></BLOCKQUOTE></P><PCLASS="para"><ACLASS="indexterm"NAME="AUTOID-31955"></A><ACLASS="indexterm"NAME="AUTOID-31957"></A>You can invoke <EMCLASS="emphasis">spell</EM> in this way from within <EMCLASS="emphasis">vi</EM>, by typing:</P><PCLASS="para"><TABLECLASS="screen.co"BORDER="1"><TR><THVALIGN="TOP"><PRECLASS="calloutlist"><ACLASS="co"HREF="ch30_26.htm"TITLE="30.26 Shell Escapes: Running One UNIX Command While Using Another">:!</A> </PRE></TH><TDVALIGN="TOP"><PRECLASS="screen"><CODECLASS="userinput"><B>!spellmisspellingmispelling</B></CODE><KBDCLASS="keycap">[CTRL-d]</KBD>mispelling[Hit return to continue]</PRE></TD></TR></TABLE></P><PCLASS="para">If you're using<SPANCLASS="link"><EMCLASS="emphasis">ispell</EM> (<ACLASS="linkend"HREF="ch29_02.htm"TITLE="Check Spelling Interactively with ispell ">29.2</A>)</SPAN>,you need to add the <EMCLASS="emphasis">-l</EM> option, since <EMCLASS="emphasis">ispell</EM> doesn't readfrom standard input by default.(Even <EMCLASS="emphasis">-l</EM> doesn't let<EMCLASS="emphasis">ispell</EM> read from a pipe.The purpose of this option is to letyou type in a list of words, just as shown above for <EMCLASS="emphasis">spell</EM>;when you end the list, <EMCLASS="emphasis">ispell</EM> will echo back the misspelledword, just like <EMCLASS="emphasis">spell</EM>.There'sno additional functionalitythere, except that <EMCLASS="emphasis">ispell</EM> will use its local dictionaries andimproved spelling rules.)</P><PCLASS="para"><ACLASS="indexterm"NAME="AUTOID-31979"></A>An even better way to do the same thing may be with<SPANCLASS="link"><EMCLASS="emphasis">look</EM> (<ACLASS="linkend"HREF="ch27_18.htm"TITLE='Fast Searches and Spelling Checks with "look"'>27.18</A>)</SPAN>.With just one argument, <EMCLASS="emphasis">look</EM> searches the system word file, <EMCLASS="emphasis">/usr/dict/words</EM>, for words starting with the characters in thatone argument.That's a good way to check spelling or find a related word:</P><PCLASS="para"><BLOCKQUOTECLASS="screen"><PRECLASS="screen">% <CODECLASS="userinput"><B>look help</B></CODE>helphelpfulhelpmate</PRE></BLOCKQUOTE></P><PCLASS="para"><EMCLASS="emphasis">look</EM> uses its <EMCLASS="emphasis">-df</EM> options automatically when it searchesthe word list.<EMCLASS="emphasis">-d</EM> ignores any character that isn't a letter,number, space or tab; <EMCLASS="emphasis">-f</EM> treats uppercase and lowercase letters thesame.</P><DIVCLASS="sect1info"><PCLASS="SECT1INFO">- <SPANCLASS="authorinitials">DD</SPAN>, <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="ch29_02.htm"TITLE="29.2 Check Spelling Interactively with ispell "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 29.2 Check Spelling Interactively with ispell "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="ch29_04.htm"TITLE="29.4 Inside spell "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 29.4 Inside spell "BORDER="0"></A></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172">29.2 Check Spelling Interactively with ispell </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">29.4 Inside spell </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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