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285 lines
16 KiB
285 lines
16 KiB
24 years ago
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<html><head>
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<title>swimrc - swim configuration file - VARIABLES
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</title>
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<link rev=made href="mailto:mttrader@access.mountain.net">
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</head><body>
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<h1>
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swimrc - swim configuration file - chapter 3<br>
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VARIABLES
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</h1>
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This is a list of variables with explanations. The default values for
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<strong>swim</strong> are shown.
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<hr>
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<h2><A name="s3.1">
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3.1 OUTPUT VARIABLE
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</A></h2>
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<code>$my_number</code> can be changed to how many lines you would like
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``swim -qf <>'' to print out, before the program asks for
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<code>-t</code> or <code>--total</code>. Exception: If <code>-i</code> is
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used in the query and there is more than one package then the total will
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be presented.
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<P>
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Hint: <code>-t</code> can be used with all the various
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<code>--scripts</code> family members to view the title of the script file
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regardless of this variable setting, and if <code>-t</code> has to be
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used, the titles will be displayed, which makes sense.
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<P>
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<strong>$my_number = 23;</strong>
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<hr>
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<h2><A name="s3.2">
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3.2 HISTORY
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</A></h2>
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This is a shell-like history kept in relation to searches and the most
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recent edit when <code>--stdin</code> is used.
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<P>
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<strong>$HISTORY = 10;</strong>
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<hr>
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<h2><A name="s3.3">
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3.3 AR or DPKG?
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</A></h2>
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Debian packages are ar archives. If you are using a Debian Distribution
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assign ``dpkg'' to $package_tool, otherwise assign ``ar'' to
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$package_tool.
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<P>
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<strong>$package_tool = "/usr/bin/ar";</strong>
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<hr>
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<h2><A name="s3.4">
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3.4 APT
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</A></h2>
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<strong>Swim</strong> does not assign a value for apt. To use
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<code>--apt</code> and <code>-xyz</code> assign <code>$apt</code> the
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value ``yes''.
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<P>
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Example: <strong>$apt = "yes";</strong>
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<hr>
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<h2><A name="s3.5">
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3.5 PAGER
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</A></h2>
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<strong>less</strong> is a nice pager, unless you like
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<strong>more</strong>! Pager is used for <code>--help</code> and
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<strong>swim</strong> called without any options. There is an option
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<code>--nopager</code> or <code>-n</code>. <strong>more</strong> comes from the
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required package util-linux, whereas <strong>less</strong> comes from a
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standard package called less. Values: ``less'', ``more'', or ``most''
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or...
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<P>
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<strong>$ENV{PAGER} = "less";</strong>
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<hr>
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<h2><A name="s3.6">
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3.6 NOT-INSTALLED VARIABLES
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</A></h2>
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Assign values for <code>$architecture</code> and/or
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<code>$distribution</code> to avoid having to use <code>--arch</code> and
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<code>--dists</code> everytime the not-installed databases are accessed
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with <code>-n</code> or made or altered.
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<P>
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Architectures are always being added so check with Debian to find a list.
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There is <em>alpha, arm, hurd-i386 (alternative kernel to linux), i386,
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m68k, powerpc, sparc</em>. Just use the arch found after the hyphen in the
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Contents-(arch) file.
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<P>
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<strong>$architecture = "i386";</strong>
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<P>
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The distribution can be either <em>stable, unstable, frozen, or
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experimental (rare)</em>. These represent the state of development that
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the packages are under. The unstable distribution can have lot's of
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changes within a very short time period, and frozen may or may not be
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available.
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<P>
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<strong>$distribution = "unstable";</strong>
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<P>
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Distributions are divided into sections. These sections were called
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distributions in the version 2.4.1.0 packaging manual, because they were
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at
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one time separate distributions, but this has since changed.
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<P>
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You can determine which of the sections <em>main, non-free, contrib or
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non-US</em> to pull out of the Contents file if you don't want to use
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<code>--main</code>, <code>--contrib</code>, <code>--non-free</code>, and
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<code>--non-us</code> to selectively pick the sections.
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<P>
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For efficiency, you should choose the sections which you will be pulling
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out of the Packages <code>file(s)</code> being targetted.
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<P>
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Rule: Use ``non-US'' not ``non-us''.
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<P>
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<strong>@user_defined_section = qw(main contrib non-free non-US);</strong>
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<hr>
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<h2><A name="s3.7">
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3.7 DF LOCATION
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</A></h2>
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A little philosophy: <strong>swim</strong> was developed for maximum
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versatility, so whether you are just interested in researching, and
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keeping tabs on the newest packages, or maintaining a Debian virtual
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distribution on a non-Debian distribution, or you are a using
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<strong>swim</strong> for distribution development, <strong>swim</strong>
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provides a way.
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<P>
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The next two variables determine the location of the DF (default
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directory/file system)
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<P>
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The default directory keeps track of Contents and/or Packages databases
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retrieved with --ftp. The Contents and Packages databases and Release file
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are give names specific to the distribution and architectures they
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represent using the naming convention found in apt's sources directory.
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You also have the freedom not to use the default directory, in which case
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swim
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will still do the renaming and keeping track of the mtime, but you will
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have to remember where you put the files.
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<P>
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<strong>$default_directory = '/root/.swim';</strong>
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<P>
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The default root directory (DRD) is the key to easy management of binary
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packages, source, dsc, and diff files received from --ftp, and provides an
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easy way to put together a personalized distribution. This directory can
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be
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a real ftp site on your computer, or put wherever else you are allowed to
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have directories. The DRD is always placed below the value assigned to
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$default_directory. According to the previous assignment to
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$default_directory, if the DRD is ``/pub/a/debian'' then the full path
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would be ``/root/.swim/pub/a/debian''.
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<P>
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Example: When a package is downloaded it will be placed in
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dists/distribution/section/architecture/subject below the DRD.
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<P>
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Rule: debian must be the final directory before dists, this is because
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other distributions are placed alongside debian, like debian-non-US or
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personal (specialized distribution).
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<P>
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<strong>$default_root_directory = '/pub/debian';</strong>
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<P>
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Because you may be using a real ftp site, this variable allows you to
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determine what permissions <strong>swim</strong> will assign for
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directories it
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creates below the DRD.
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<P>
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<strong>$permission = '0755';</strong>
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<hr>
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<h2><A name="s3.8">
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3.8 TEMPORARY DIRECTORY
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</A></h2>
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If you want to set an alternative directory for the temporary files
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created when the databases are made, change here. You may want to make
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<code>$tmp</code> a RAM disk. See package loadlin for initrd documentation and
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an explanation for making such a disk. There is also documentation in
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/usr/src/kernel-source.version/Documentation. Whether this will speed
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things up is a subject of experimentation.
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<P>
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<strong>$tmp = "/tmp";</strong>
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<hr>
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<h2><A name="s3.9">
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3.9 FTP
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</A></h2>
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You can alter the Firewall, Port, Timeout, Debug and Passive
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characteristics of the ftp client as defined in Net::FTP(3pm) by providing
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arguments to these variables. All variables but $timeout are set to untrue
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by default.
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<pre> $firewall = 0; (FTP firewall machine name)
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$port = 0; (defaults to 23)
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$timeout = 120; (120 seconds)
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$debug = 0; (1 will turn on STDERR)
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$passive = 0; (1 will enable)</pre>
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<hr>
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swimrc - swim configuration file
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- <A href="index.html#copyright">
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Copyright � 1999 Jonathan D. Rosenbaum
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</A>
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<br>
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<A href="index.html#toc">Contents</A>; <A href="ch-othervars.html">next</A>; <A href="ch-usage.html">back</A>.
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<br>
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<address>27 May 1999<br>
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Jonathan D. Rosenbaum<A href="mailto:mttrader@access.mountain.net">mttrader@access.mountain.net</A></address>
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</body></html>
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