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2      PLAN9/PERLPLAN9(1)   (perl 5.003, patch 05)    PLAN9/PERLPLAN9(1)
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4      N\bN\bN\bNA\bA\bA\bAM\bM\bM\bME\bE\bE\bE
5           perlplan9 - Plan 9-specific documentation for Perl
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7      D\bD\bD\bDE\bE\bE\bES\bS\bS\bSC\bC\bC\bCR\bR\bR\bRI\bI\bI\bIP\bP\bP\bPT\bT\bT\bTI\bI\bI\bIO\bO\bO\bON\bN\bN\bN
8           These are a few notes describing features peculiar to Plan 9
9           Perl. As such, it is not intended to be a replacement for
10           the rest of the Perl 5 documentation (which is both copious
11           and excellent). If you have any questions to which you can't
12           find answers in these man pages, contact Luther Huffman at
13           lutherh@stratcom.com and we'll try to answer them.
14
15           I\bI\bI\bIn\bn\bn\bnv\bv\bv\bvo\bo\bo\bok\bk\bk\bki\bi\bi\bin\bn\bn\bng\bg\bg\bg P\bP\bP\bPe\be\be\ber\br\br\brl\bl\bl\bl
16
17           Perl is invoked from the command line as described in the
18           _\bp_\be_\br_\bl manpage. Most perl scripts, however, do have a first
19           line such as "#!/usr/local/bin/perl". This is known as a
20           shebang (shell-bang) statement and tells the OS shell where
21           to find the perl interpreter. In Plan 9 Perl this statement
22           should be "#!/bin/perl" if you wish to be able to directly
23           invoke the script by its name.
24                Alternatively, you may invoke perl with the command
25           "Perl" instead of "perl". This will produce Acme-friendly
26           error messages of the form "filename:18".
27
28           Some scripts, usually identified with a *.PL extension, are
29           self-configuring and are able to correctly create their own
30           shebang path from config information located in Plan 9 Perl.
31           These you won't need to be worried about.
32
33           W\bW\bW\bWh\bh\bh\bha\ba\ba\bat\bt\bt\bt'\b'\b'\b's\bs\bs\bs i\bi\bi\bin\bn\bn\bn P\bP\bP\bPl\bl\bl\bla\ba\ba\ban\bn\bn\bn 9\b9\b9\b9 P\bP\bP\bPe\be\be\ber\br\br\brl\bl\bl\bl
34
35           Although Plan 9 Perl currently only  provides static
36           loading, it is built with a number of useful extensions.
37           These include Opcode, FileHandle, Fcntl, and POSIX. Expect
38           to see others (and DynaLoading!) in the future.
39
40           W\bW\bW\bWh\bh\bh\bha\ba\ba\bat\bt\bt\bt'\b'\b'\b's\bs\bs\bs n\bn\bn\bno\bo\bo\bot\bt\bt\bt i\bi\bi\bin\bn\bn\bn P\bP\bP\bPl\bl\bl\bla\ba\ba\ban\bn\bn\bn 9\b9\b9\b9 P\bP\bP\bPe\be\be\ber\br\br\brl\bl\bl\bl
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42           As mentioned previously, dynamic loading isn't currently
43           available nor is MakeMaker. Both are high-priority items.
44
45           P\bP\bP\bPe\be\be\ber\br\br\brl\bl\bl\bl5\b5\b5\b5 F\bF\bF\bFu\bu\bu\bun\bn\bn\bnc\bc\bc\bct\bt\bt\bti\bi\bi\bio\bo\bo\bon\bn\bn\bns\bs\bs\bs n\bn\bn\bno\bo\bo\bot\bt\bt\bt c\bc\bc\bcu\bu\bu\bur\br\br\brr\br\br\bre\be\be\ben\bn\bn\bnt\bt\bt\btl\bl\bl\bly\by\by\by s\bs\bs\bsu\bu\bu\bup\bp\bp\bpp\bp\bp\bpo\bo\bo\bor\br\br\brt\bt\bt\bte\be\be\bed\bd\bd\bd
46
47           Some, such as chown and umask aren't provided because the
48           concept does not exist within Plan 9. Others, such as some
49           of the socket-related functions, simply haven't been written
50           yet. Many in the latter category may be supported in the
51           future.
52
53           The functions not currently implemented include:
54
55      Page 1                      9/Oct/96            (printed 10/9/96)
56
57      PLAN9/PERLPLAN9(1)   (perl 5.003, patch 05)    PLAN9/PERLPLAN9(1)
58
59               chown, chroot, dbmclose, dbmopen, getsockopt,
60               setsockopt, recvmsg, sendmsg, getnetbyname,
61               getnetbyaddr, getnetent, getprotoent, getservent,
62               sethostent, setnetent, setprotoent, setservent,
63               endservent, endnetent, endprotoent, umask
64
65           There may be several other functions that have undefined
66           behavior so this list shouldn't be considered complete.
67
68           S\bS\bS\bSi\bi\bi\big\bg\bg\bgn\bn\bn\bna\ba\ba\bal\bl\bl\bls\bs\bs\bs
69
70           For compatibility with perl scripts written for the Unix
71           environment, Plan 9 Perl uses the POSIX signal emulation
72           provided in Plan 9's ANSI POSIX Environment (APE). Signal
73           stacking isn't supported. The signals provided are:
74
75               SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGABRT,
76               SIGFPE, SIGKILL, SIGSEGV, SIGPIPE, SIGPIPE, SIGALRM,
77               SIGTERM, SIGUSR1, SIGUSR2, SIGCHLD, SIGCONT,
78               SIGSTOP, SIGTSTP, SIGTTIN, SIGTTOU
79
80      B\bB\bB\bBU\bU\bU\bUG\bG\bG\bGS\bS\bS\bS
81           "As many as there are grains of sand on all the beaches of
82           the world . . ." - Carl Sagan
83
84      R\bR\bR\bRe\be\be\bev\bv\bv\bvi\bi\bi\bis\bs\bs\bsi\bi\bi\bio\bo\bo\bon\bn\bn\bn d\bd\bd\bda\ba\ba\bat\bt\bt\bte\be\be\be
85           This document was revised 09-October-1996 for Perl 5.003_7.
86
87      A\bA\bA\bAU\bU\bU\bUT\bT\bT\bTH\bH\bH\bHO\bO\bO\bOR\bR\bR\bR
88           Luther Huffman,    lutherh@stratcom.com
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90      Page 2                      9/Oct/96            (printed 10/9/96)
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