perlplan9 - Plan 9-specific documentation for Perl

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As such, it is not intended to be a replacement for the rest of the Perl 5 documentation (which is both copious and excellent). If you have any questions to which you can't find answers in these man pages, contact Luther Huffman at lutherh@stratcom.com and we'll try to answer them.</p> <h2 id="Invoking-Perl"><a class="permalink" href="#Invoking-Perl">#</a><a id="Invoking"></a>Invoking Perl</h2> <p>Perl is invoked from the command line as described in <a href="/5.30.3/perl">perl</a>. Most perl scripts, however, do have a first line such as "#!/usr/local/bin/perl". This is known as a shebang (shell-bang) statement and tells the OS shell where to find the perl interpreter. In Plan 9 Perl this statement should be "#!/bin/perl" if you wish to be able to directly invoke the script by its name. Alternatively, you may invoke perl with the command "Perl" instead of "perl". This will produce Acme-friendly error messages of the form "filename:18".</p> <p>Some scripts, usually identified with a *.PL extension, are self-configuring and are able to correctly create their own shebang path from config information located in Plan 9 Perl. These you won't need to be worried about.</p> <h2 id="What's-in-Plan-9-Perl"><a class="permalink" href="#What's-in-Plan-9-Perl">#</a><a id="What"></a><a id="Whats-in-Plan-9-Perl"></a>What's in Plan 9 Perl</h2> <p>Although Plan 9 Perl currently only provides static loading, it is built with a number of useful extensions. These include Opcode, FileHandle, Fcntl, and POSIX. Expect to see others (and DynaLoading!) in the future.</p> <h2 id="What's-not-in-Plan-9-Perl"><a class="permalink" href="#What's-not-in-Plan-9-Perl">#</a><a id="What1"></a><a id="Whats-not-in-Plan-9-Perl"></a>What's not in Plan 9 Perl</h2> <p>As mentioned previously, dynamic loading isn't currently available nor is MakeMaker. Both are high-priority items.</p> <h2 id="Perl5-Functions-not-currently-supported-in-Plan-9-Perl"><a class="permalink" href="#Perl5-Functions-not-currently-supported-in-Plan-9-Perl">#</a><a id="Perl5"></a>Perl5 Functions not currently supported in Plan 9 Perl</h2> <p>Some, such as <code>chown</code> and <code>umask</code> aren't provided because the concept does not exist within Plan 9. Others, such as some of the socket-related functions, simply haven't been written yet. Many in the latter category may be supported in the future.</p> <p>The functions not currently implemented include:</p> <pre><code class="plaintext">chown, chroot, dbmclose, dbmopen, getsockopt, setsockopt, recvmsg, sendmsg, getnetbyname, getnetbyaddr, getnetent, getprotoent, getservent, sethostent, setnetent, setprotoent, setservent, endservent, endnetent, endprotoent, umask</code></pre> <p>There may be several other functions that have undefined behavior so this list shouldn't be considered complete.</p> <h2 id="Signals-in-Plan-9-Perl"><a class="permalink" href="#Signals-in-Plan-9-Perl">#</a><a id="Signals"></a>Signals in Plan 9 Perl</h2> <p>For compatibility with perl scripts written for the Unix environment, Plan 9 Perl uses the POSIX signal emulation provided in Plan 9's ANSI POSIX Environment (APE). Signal stacking isn't supported. The signals provided are:</p> <pre><code class="plaintext">SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGABRT, SIGFPE, SIGKILL, SIGSEGV, SIGPIPE, SIGPIPE, SIGALRM, SIGTERM, SIGUSR1, SIGUSR2, SIGCHLD, SIGCONT, SIGSTOP, SIGTSTP, SIGTTIN, SIGTTOU</code></pre> <h1 id="COMPILING-AND-INSTALLING-PERL-ON-PLAN-9"><a class="permalink" href="#COMPILING-AND-INSTALLING-PERL-ON-PLAN-9">#</a><a id="COMPILING"></a>COMPILING AND INSTALLING PERL ON PLAN 9</h1> <p>WELCOME to Plan 9 Perl, brave soul!</p> <pre><code class="plaintext">This is a preliminary alpha version of Plan 9 Perl. Still to be implemented are MakeMaker and DynaLoader. Many perl commands are missing or currently behave in an inscrutable manner. These gaps will, with perseverance and a modicum of luck, be remedied in the near future.To install this software:</code></pre> <p>1. Create the source directories and libraries for perl by running the plan9/setup.rc command (i.e., located in the plan9 subdirectory). Note: the setup routine assumes that you haven't dearchived these files into /sys/src/cmd/perl. After running setup.rc you may delete the copy of the source you originally detarred, as source code has now been installed in /sys/src/cmd/perl. If you plan on installing perl binaries for all architectures, run "setup.rc -a".</p> <p>2. After making sure that you have adequate privileges to build system software, from /sys/src/cmd/perl/5.00301 (adjust version appropriately) run:</p> <pre><code class="plaintext">mk install</code></pre> <p>If you wish to install perl versions for all architectures (68020, mips, sparc and 386) run:</p> <pre><code class="plaintext">mk installall</code></pre> <p>3. Wait. The build process will take a *long* time because perl bootstraps itself. A 75MHz Pentium, 16MB RAM machine takes roughly 30 minutes to build the distribution from scratch.</p> <h2 id="Installing-Perl-Documentation-on-Plan-9"><a class="permalink" href="#Installing-Perl-Documentation-on-Plan-9">#</a><a id="Installing"></a>Installing Perl Documentation on Plan 9</h2> <p>This perl distribution comes with a tremendous amount of documentation. To add these to the built-in manuals that come with Plan 9, from /sys/src/cmd/perl/5.00301 (adjust version appropriately) run:</p> <pre><code class="plaintext">mk man</code></pre> <p>To begin your reading, start with:</p> <pre><code class="plaintext">man perl</code></pre> <p>This is a good introduction and will direct you towards other man pages that may interest you.</p> <p>(Note: "mk man" may produce some extraneous noise. Fear not.)</p> <h1 id="BUGS"><a class="permalink" href="#BUGS">#</a>BUGS</h1> <p>"As many as there are grains of sand on all the beaches of the world . . ." - Carl Sagan</p> <h1 id="Revision-date"><a class="permalink" href="#Revision-date">#</a><a id="Revision"></a>Revision date</h1> <p>This document was revised 09-October-1996 for Perl 5.003_7.</p> <h1 id="AUTHOR"><a class="permalink" href="#AUTHOR">#</a>AUTHOR</h1> <p>Direct questions, comments, and the unlikely bug report (ahem) direct comments toward:</p> <p>Luther Huffman, lutherh@stratcom.com, Strategic Computer Solutions, Inc.</p> </div> <div id="footer"> <p>Perldoc Browser is maintained by Dan Book (<a href="https://metacpan.org/author/DBOOK">DBOOK</a>). Please contact him via the <a href="https://github.com/Grinnz/perldoc-browser/issues">GitHub issue tracker</a> or <a href="mailto:dbook@cpan.org">email</a> regarding any issues with the site itself, search, or rendering of documentation.</p> <p>The Perl documentation is maintained by the Perl 5 Porters in the development of Perl. Please contact them via the <a href="https://github.com/Perl/perl5/issues">Perl issue tracker</a>, the <a href="https://lists.perl.org/list/perl5-porters.html">mailing list</a>, or <a href="https://kiwiirc.com/client/irc.perl.org/p5p">IRC</a> to report any issues with the contents or format of the documentation.</p> </div> </div> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.slim.min.js" integrity="sha512-/DXTXr6nQodMUiq+IUJYCt2PPOUjrHJ9wFrqpJ3XkgPNOZVfMok7cRw6CSxyCQxXn6ozlESsSh1/sMCTF1rL/g==" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.1/umd/popper.min.js" integrity="sha512-ubuT8Z88WxezgSqf3RLuNi5lmjstiJcyezx34yIU2gAHonIi27Na7atqzUZCOoY4CExaoFumzOsFQ2Ch+I/HCw==" crossorigin="anonymous"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script> <script src="/js/highlight.pack.js"></script> <script>hljs.highlightAll();</script> </body> </html>

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perlplan9 - Plan 9-specific documentation for Perl - Perldoc Browser