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<HTML><!--Distributed by F --><HEAD><TITLE>[Chapter 16] 16.19 stree: Simple Directory Tree </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="1998-08-04T21:37:54Z"><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="ch16_01.htm"TITLE="16. Where Did I Put That?"><LINKREL="prev"HREF="ch16_18.htm"TITLE="16.18 Listing Files You've Created/Edited Today "><LINKREL="next"HREF="ch16_20.htm"TITLE="16.20 The vtree Visual Directory Tree Programs "></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="ch16_18.htm"TITLE="16.18 Listing Files You've Created/Edited Today "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 16.18 Listing Files You've Created/Edited Today "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><B><FONTFACE="ARIEL,HELVETICA,HELV,SANSERIF"SIZE="-1">Chapter 16<BR>Where Did I Put That?</FONT></B></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch16_20.htm"TITLE="16.20 The vtree Visual Directory Tree Programs "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 16.20 The vtree Visual Directory Tree Programs "BORDER="0"></A></TD></TR></TABLE> <HRALIGN="LEFT"WIDTH="515"TITLE="footer"></DIV><DIVCLASS="SECT1"><H2CLASS="sect1"><ACLASS="title"NAME="UPT-ART-4600">16.19 stree: Simple Directory Tree </A></H2><PCLASS="para"><ACLASS="indexterm"NAME="AUTOID-17562"></A><ACLASS="indexterm"NAME="AUTOID-17564"></A><ACLASS="indexterm"NAME="AUTOID-17567"></A>Here's a simple script that prints a directory tree.It works on any terminal, can be printedor sent in a mail message, and so on.If you don't give <EMCLASS="emphasis">stree</EM> a directory name, it starts at the currentdirectory.If you give it a <EMCLASS="emphasis">-a</EM> (all) option, the <EMCLASS="emphasis">stree</EM> script lists all files, directories, symbolic links, etc.Otherwise, it just lists directories.For example:</P><PCLASS="para"><BLOCKQUOTECLASS="screen"><PRECLASS="screen">% <CODECLASS="userinput"><B>stree lib</B></CODE>Tree for directory lib:lib " at_cron " " RCS " " test " csh " ksh " RCS.Z " tmac " " mm " " " RCS " " ms " " " RCS</PRE></BLOCKQUOTE></P><PCLASS="para">The top-level directory is listed along the left-hand edge.The first level of subdirectories is indented by one tabstop.A ditto mark (<CODECLASS="literal">"</CODE>) below a name means "same parent directory as above."So, for example, the last directory in that listing is <EMCLASS="emphasis">lib/tmac/ms/RCS</EM>.</P><PCLASS="para">Here's the script:</P><PCLASS="para"><TABLECLASS="screen.co"BORDER="1"><TR><THVALIGN="TOP"><PRECLASS="calloutlist"> <ACLASS="co"HREF="ch45_12.htm"TITLE="45.12 Parameter Substitution ">${1-.}</A> <ACLASS="co"HREF="ch08_14.htm"TITLE="8.14 Bourne Shell Quoting ">"newline</A> <ACLASS="co"HREF="ch34_07.htm"TITLE="34.7 Delimiting a Regular Expression ">@</A> </PRE></TH><TDVALIGN="TOP"><PRECLASS="screen"> #! /bin/shcase "$1" in-a) shift dir=${1-.} # DEFAULT TO CURRENT DIRECTORY echo Tree for directory $dir and its files: ;;*) findtype="-type d" # IF NO -a FLAG, MAKE find USE "-type d" dir=${1-.} echo Tree for directory $dir: ;;esacecho "$dir"find $dir $findtype -print |tr / \\001 | sort -f | tr \\001 / |sed -e s@\^$dir@@ -e /\^$/d -e 's@[^/]*/@ "<KBDCLASS="keycap">[TAB]</KBD>@g'</PRE></TD></TR></TABLE></P><PCLASS="para">The script uses<SPANCLASS="link"><EMCLASS="emphasis">tr</EM> (<ACLASS="linkend"HREF="ch35_11.htm"TITLE="Hacking on Characters with tr ">35.11</A>)</SPAN>to change slash (<CODECLASS="literal">/</CODE>) characters into CTRL-a (<SPANCLASS="link">octal 001 (<ACLASS="linkend"HREF="ch51_03.htm"TITLE="ASCII Characters: Listing and Getting Values ">51.3</A>)</SPAN>)during the sort.That makes the slashes sort before letters and other charactersso the directory names will always come out before their contents.</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="ch16_18.htm"TITLE="16.18 Listing Files You've Created/Edited Today "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 16.18 Listing Files You've Created/Edited Today "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="ch16_20.htm"TITLE="16.20 The vtree Visual Directory Tree Programs "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 16.20 The vtree Visual Directory Tree Programs "BORDER="0"></A></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172">16.18 Listing Files You've Created/Edited Today </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">16.20 The vtree Visual Directory Tree Programs </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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