This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
perlxs.pod; rpc is considered obsolete
[perl5.git] / README
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d2de3398 1Perl is Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
a271a376 22001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
781d8b49 32013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 by Larry Wall and others.
e84cc8c8 4All rights reserved.
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8ABOUT PERL
9==========
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11Perl is a general-purpose programming language originally developed for
12text manipulation and now used for a wide range of tasks including
13system administration, web development, network programming, GUI
14development, and more.
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16The language is intended to be practical (easy to use, efficient,
17complete) rather than beautiful (tiny, elegant, minimal). Its major
18features are that it's easy to use, supports both procedural and
19object-oriented (OO) programming, has powerful built-in support for text
20processing, and has one of the world's most impressive collections of
21third-party modules.
d48672a2 22
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23For an introduction to the language's features, see pod/perlintro.pod.
24
8f03122b 25For a discussion of the important changes in this release, see
37ee6528 26pod/perldelta.pod.
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28There are also many Perl books available, covering a wide variety of topics,
29from various publishers. See pod/perlbook.pod for more information.
30
31
32INSTALLATION
33============
34
35If you're using a relatively modern operating system and want to
36install this version of Perl locally, run the following commands:
37
b6e5a715 38 ./Configure -des -Dprefix=$HOME/localperl
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39 make test
40 make install
41
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42This will configure and compile perl for your platform, run the regression
43tests, and install perl in a subdirectory "localperl" of your home directory.
44
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45If you run into any trouble whatsoever or you need to install a customized
46version of Perl, you should read the detailed instructions in the "INSTALL"
47file that came with this distribution. Additionally, there are a number of
48"README" files with hints and tips about building and using Perl on a wide
49variety of platforms, some more common than others.
50
51Once you have Perl installed, a wealth of documentation is available to you
52through the 'perldoc' tool. To get started, run this command:
53
54 perldoc perl
55
56
57IF YOU RUN INTO TROUBLE
58=======================
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60Perl is a large and complex system that's used for everything from
61knitting to rocket science. If you run into trouble, it's quite
62likely that someone else has already solved the problem you're
63facing. Once you've exhausted the documentation, please report bugs to us
8166b4e0 64at the GitHub issue tracker at https://github.com/Perl/perl5/issues
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65
66While it was current when we made it available, Perl is constantly evolving
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67and there may be a more recent version that fixes bugs you've run into or
68adds new features that you might find useful.
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69
70You can always find the latest version of perl on a CPAN (Comprehensive Perl
d33c0cb5 71Archive Network) site near you at https://www.cpan.org/src/
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73If you want to submit a simple patch to the perl source, see the "SUPER
74QUICK PATCH GUIDE" in pod/perlhack.pod.
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75
76Just a personal note: I want you to know that I create nice things like this
77because it pleases the Author of my story. If this bothers you, then your
78notion of Authorship needs some revision. But you can use perl anyway. :-)
79
80 The author.
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81
82
83LICENSING
84=========
85
86This program is free software; you can redistribute it and/or modify
87it under the terms of either:
88
89 a) the GNU General Public License as published by the Free
90 Software Foundation; either version 1, or (at your option) any
91 later version, or
92
93 b) the "Artistic License" which comes with this Kit.
94
95This program is distributed in the hope that it will be useful,
96but WITHOUT ANY WARRANTY; without even the implied warranty of
97MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See either
98the GNU General Public License or the Artistic License for more details.
99
100You should have received a copy of the Artistic License with this
101Kit, in the file named "Artistic". If not, I'll be glad to provide one.
102
103You should also have received a copy of the GNU General Public License
104along with this program in the file named "Copying". If not, write to the
ecd16862 105Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
8d9043d1 106Boston, MA 02110-1301, USA or visit their web page on the internet at
d33c0cb5 107https://www.gnu.org/copyleft/gpl.html.
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108
109For those of you that choose to use the GNU General Public License,
110my interpretation of the GNU General Public License is that no Perl
111script falls under the terms of the GPL unless you explicitly put
112said script under the terms of the GPL yourself. Furthermore, any
113object code linked with perl does not automatically fall under the
114terms of the GPL, provided such object code only adds definitions
115of subroutines and variables, and does not otherwise impair the
116resulting interpreter from executing any standard Perl script. I
117consider linking in C subroutines in this manner to be the moral
118equivalent of defining subroutines in the Perl language itself. You
119may sell such an object file as proprietary provided that you provide
120or offer to provide the Perl source, as specified by the GNU General
121Public License. (This is merely an alternate way of specifying input
122to the program.) You may also sell a binary produced by the dumping of
123a running Perl script that belongs to you, provided that you provide or
124offer to provide the Perl source as specified by the GPL. (The
125fact that a Perl interpreter and your code are in the same binary file
126is, in this case, a form of mere aggregation.) This is my interpretation
127of the GPL. If you still have concerns or difficulties understanding
128my intent, feel free to contact me. Of course, the Artistic License
129spells all this out for your protection, so you may prefer to use that.
130
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