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<!DOCTYPE HTML PUBLIC "-//W3O//DTD W3 HTML 2.0//EN">
<!Converted with LaTeX2HTML 95.1 (Fri Jan 20 1995) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds >
<HEAD>
<TITLE>3.3.1 Moving around</TITLE>
</HEAD>
<BODY>
<meta name="description" value="3.3.1 Moving around">
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<P>
<BR> <HR><A NAME=tex2html3120 HREF="node108.html"><IMG ALIGN=BOTTOM ALT="next" SRC="next_motif.gif"></A> <A NAME=tex2html3118 HREF="node106.html"><IMG ALIGN=BOTTOM ALT="up" SRC="up_motif.gif"></A> <A NAME=tex2html3112 HREF="node106.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="previous_motif.gif"></A> <A NAME=tex2html3122 HREF="node1.html"><IMG ALIGN=BOTTOM ALT="contents" SRC="contents_motif.gif"></A> <A NAME=tex2html3123 HREF="node250.html"><IMG ALIGN=BOTTOM ALT="index" SRC="index_motif.gif"></A> <BR>
<B> Next:</B> <A NAME=tex2html3121 HREF="node108.html">3.3.2 Looking at the </A>
<B>Up:</B> <A NAME=tex2html3119 HREF="node106.html">3.3 First Steps into </A>
<B> Previous:</B> <A NAME=tex2html3113 HREF="node106.html">3.3 First Steps into </A>
<BR> <HR> <P>
<H2><A NAME=SECTION00531000000000000000>3.3.1 Moving around</A></H2>
<P>
Now that we can login, and know how to refer to files using pathnames,
how can we change our current working directory, to make life easier?
<P>
<A NAME=2350>&#160;</A>
<A NAME=2351>&#160;</A>
The command for moving around in the directory structure is
<tt>cd</tt>, short for ``change directory''. You'll
notice that many often-used Unix commands are two or three letters.
The usage of the <tt>cd</tt> command is:
<P><TT> cd <IMG BORDER=0 ALIGN=BOTTOM ALT="" SRC="img102.gif"> <P></TT>
where <IMG BORDER=0 ALIGN=BOTTOM ALT="" SRC="img103.gif"> is the name of the directory which you wish
to change to.
<P>
As we said, when you login, you begin in your home directory. If
Larry wanted to move down into the <tt>papers</tt> subdirectory, he'd
use the command
<P><TT> /home/larry# <em>cd papers</em> <BR>
/home/larry/papers#
<P></TT>
As you can see, Larry's prompt changes to reflect his current working
directory (so he knows where he is). Now that he's in the <tt>papers</tt>
directory, he can look at his history final with the command
<P><TT> /home/larry/papers# <em>more history-final</em>
<P></TT>
<P>
<A NAME=2352>&#160;</A>
<A NAME=2353>&#160;</A>
<A NAME=2354>&#160;</A>
Now, Larry is stuck in the <tt>papers</tt> subdirectory. To move back
up to the parent directory, use the command
<P><TT> /home/larry/papers# <em>cd ..</em> <BR>
/home/larry#
<P></TT>
(Note the space between the ``<tt>cd</tt>'' and the ``<tt>..</tt>''.)
Every directory has an entry named ``<tt>..</tt>'' which refers to
the parent directory. Similarly, every directory has an entry
named ``<tt>.</tt>'' which refers to itself. Therefore, the command
<P><TT> /home/larry/papers# <em>cd .</em>
<P></TT>
gets us nowhere.
<P>
You can also use absolute pathnames in the <tt>cd</tt> command.
To <tt>cd</tt> into Karl's home directory, we can use the command
<P><TT> /home/larry/papers# <em>cd /home/karl</em> <BR>
/home/karl#
<P></TT>
<P>
Also, using <tt>cd</tt> with no argument will return you to your own
home directory.
<P><TT> /home/karl# <em>cd</em> <BR>
/home/larry#
<P></TT>
<A NAME=2355>&#160;</A>
<P>
<BR> <HR><A NAME=tex2html3120 HREF="node108.html"><IMG ALIGN=BOTTOM ALT="next" SRC="next_motif.gif"></A> <A NAME=tex2html3118 HREF="node106.html"><IMG ALIGN=BOTTOM ALT="up" SRC="up_motif.gif"></A> <A NAME=tex2html3112 HREF="node106.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="previous_motif.gif"></A> <A NAME=tex2html3122 HREF="node1.html"><IMG ALIGN=BOTTOM ALT="contents" SRC="contents_motif.gif"></A> <A NAME=tex2html3123 HREF="node250.html"><IMG ALIGN=BOTTOM ALT="index" SRC="index_motif.gif"></A> <BR>
<B> Next:</B> <A NAME=tex2html3121 HREF="node108.html">3.3.2 Looking at the </A>
<B>Up:</B> <A NAME=tex2html3119 HREF="node106.html">3.3 First Steps into </A>
<B> Previous:</B> <A NAME=tex2html3113 HREF="node106.html">3.3 First Steps into </A>
<BR> <HR> <P>
<BR> <HR>
<P><ADDRESS>
<I>Matt Welsh <BR>
mdw@sunsite.unc.edu</I>
</ADDRESS>
</BODY>