perl/README
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   1Perl is Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
   22002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others.
   3All rights reserved.
   4
   5
   6
   7ABOUT PERL
   8==========
   9
  10Perl is a general-purpose programming language originally developed for
  11text manipulation and now used for a wide range of tasks including
  12system administration, web development, network programming, GUI
  13development, and more.
  14
  15The language is intended to be practical (easy to use, efficient,
  16complete) rather than beautiful (tiny, elegant, minimal).  Its major
  17features are that it's easy to use, supports both procedural and
  18object-oriented (OO) programming, has powerful built-in support for text
  19processing, and has one of the world's most impressive collections of
  20third-party modules.
  21
  22For an introduction to the language's features, see pod/perlintro.pod.
  23
  24For a discussion of the important changes in this release, see
  25pod/perl5101delta.pod.  (This will also be installed as perldelta.pod).
  26
  27There are also many Perl books available, covering a wide variety of topics,
  28from various publishers.  See pod/perlbook.pod for more information.
  29
  30
  31INSTALLATION
  32============
  33
  34If you're using a relatively modern operating system and want to
  35install this version of Perl locally, run the following commands:
  36
  37  ./Configure -des -Dprefix=$HOME/localperl
  38  make test
  39  make install
  40
  41This will configure and compile perl for your platform, run the regression
  42tests, and install perl in a subdirectory "localperl" of your home directory.
  43
  44If you run into any trouble whatsoever or you need to install a customized
  45version of Perl, you should read the detailed instructions in the "INSTALL"
  46file that came with this distribution.  Additionally, there are a number of
  47"README" files with hints and tips about building and using Perl on a wide
  48variety of platforms, some more common than others.
  49
  50Once you have Perl installed, a wealth of documentation is available to you
  51through the 'perldoc' tool.  To get started, run this command:
  52
  53  perldoc perl
  54
  55
  56IF YOU RUN INTO TROUBLE
  57=======================
  58
  59Perl is a large and complex system that's used for everything from
  60knitting to rocket science.  If you run into trouble, it's quite
  61likely that someone else has already solved the problem you're
  62facing. Once you've exhausted the documentation, please report bugs to us
  63using the 'perlbug' tool. For more information about perlbug, either type
  64'perldoc perlbug' or just 'perlbug' on a line by itself.
  65
  66While it was current when we made it available, Perl is constantly evolving
  67and there may be a more recent version that fixes bugs you've run into or
  68adds new features that you might find useful.
  69
  70You can always find the latest version of perl on a CPAN (Comprehensive Perl
  71Archive Network) site near you at http://www.cpan.org/src/
  72
  73
  74Just a personal note:  I want you to know that I create nice things like this
  75because it pleases the Author of my story.  If this bothers you, then your
  76notion of Authorship needs some revision.  But you can use perl anyway. :-)
  77
  78                                                        The author.
  79
  80
  81LICENSING
  82=========
  83
  84This program is free software; you can redistribute it and/or modify
  85it under the terms of either:
  86
  87        a) the GNU General Public License as published by the Free
  88        Software Foundation; either version 1, or (at your option) any
  89        later version, or
  90
  91        b) the "Artistic License" which comes with this Kit.
  92
  93This program is distributed in the hope that it will be useful,
  94but WITHOUT ANY WARRANTY; without even the implied warranty of
  95MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See either
  96the GNU General Public License or the Artistic License for more details.
  97
  98You should have received a copy of the Artistic License with this
  99Kit, in the file named "Artistic".  If not, I'll be glad to provide one.
 100
 101You should also have received a copy of the GNU General Public License
 102along with this program in the file named "Copying". If not, write to the
 103Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 
 104Boston, MA 02110-1301, USA or visit their web page on the internet at
 105http://www.gnu.org/copyleft/gpl.html.
 106
 107For those of you that choose to use the GNU General Public License,
 108my interpretation of the GNU General Public License is that no Perl
 109script falls under the terms of the GPL unless you explicitly put
 110said script under the terms of the GPL yourself.  Furthermore, any
 111object code linked with perl does not automatically fall under the
 112terms of the GPL, provided such object code only adds definitions
 113of subroutines and variables, and does not otherwise impair the
 114resulting interpreter from executing any standard Perl script.  I
 115consider linking in C subroutines in this manner to be the moral
 116equivalent of defining subroutines in the Perl language itself.  You
 117may sell such an object file as proprietary provided that you provide
 118or offer to provide the Perl source, as specified by the GNU General
 119Public License.  (This is merely an alternate way of specifying input
 120to the program.)  You may also sell a binary produced by the dumping of
 121a running Perl script that belongs to you, provided that you provide or
 122offer to provide the Perl source as specified by the GPL.  (The
 123fact that a Perl interpreter and your code are in the same binary file
 124is, in this case, a form of mere aggregation.)  This is my interpretation
 125of the GPL.  If you still have concerns or difficulties understanding
 126my intent, feel free to contact me.  Of course, the Artistic License
 127spells all this out for your protection, so you may prefer to use that.
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