S<[ B<-i>[I<extension>] ]> S<[ B<-e> I<'command'> ]
[ B<--> ] [ I<programfile> ] [ I<argument> ]...>
-For ease of access, the Perl manual has been split up into a number
-of sections:
+For ease of access, the Perl manual has been split up into several
+sections:
perl Perl overview (this section)
perldelta Perl changes since previous version
perlmodlib Perl modules: how to write and use
perlmodinstall Perl modules: how to install from CPAN
perlform Perl formats
+ perlunicode Perl unicode support
perllocale Perl locale support
perlreftut Perl references short introduction
perlref Perl references, the rest of the story
perldsc Perl data structures intro
perllol Perl data structures: arrays of arrays
+ perlboot Perl OO tutorial for beginners
perltoot Perl OO tutorial, part 1
perltootc Perl OO tutorial, part 2
perlobj Perl objects
perltie Perl objects hidden behind simple variables
perlbot Perl OO tricks and examples
perlipc Perl interprocess communication
+ perlfork Perl fork() information
perlthrtut Perl threads tutorial
- perldbmfilter Perl DBM Filters
+ perllexwarn Perl warnings and their control
+ perlfilter Perl source filters
+ perldbmfilter Perl DBM filters
+ perlcompile Perl compiler suite intro
perldebug Perl debugging
perldiag Perl diagnostic messages
+ perlnumber Perl number semantics
perlsec Perl security
perltrap Perl traps for the unwary
perlport Perl portability guide
perlembed Perl ways to embed perl in your C or C++ application
perlapio Perl internal IO abstraction interface
+ perldebguts Perl debugging guts and tips
perlxs Perl XS application programming interface
perlxstut Perl XS tutorial
perlguts Perl internal functions for those doing extensions
perlcall Perl calling conventions from C
+ perlapi Perl API listing (autogenerated)
+ perlintern Perl internal functions (autogenerated)
perltodo Perl things to do
+ perlhack Perl hackers guide
perlhist Perl history records
+ perlamiga Perl notes for Amiga
+ perlcygwin Perl notes for Cygwin
+ perldos Perl notes for DOS
+ perlhpux Perl notes for HP-UX
+ perlmachten Perl notes for Power MachTen
+ perlos2 Perl notes for OS/2
+ perlos390 Perl notes for OS/390
+ perlvms Perl notes for VMS
+ perlwin32 Perl notes for Windows
+
(If you're intending to read these straight through for the first time,
the suggested order will tend to reduce the number of forward references.)
features of C, B<sed>, B<awk>, and B<sh>, so people familiar with
those languages should have little difficulty with it. (Language
historians will also note some vestiges of B<csh>, Pascal, and even
-BASIC-PLUS.) Expression syntax corresponds quite closely to C
+BASIC-PLUS.) Expression syntax corresponds closely to C
expression syntax. Unlike most Unix utilities, Perl does not
arbitrarily limit the size of your data--if you've got the memory,
Perl can slurp in your whole file as a single string. Recursion is of
unlimited depth. And the tables used by hashes (sometimes called
"associative arrays") grow as necessary to prevent degraded
performance. Perl can use sophisticated pattern matching techniques to
-scan large amounts of data very quickly. Although optimized for
+scan large amounts of data quickly. Although optimized for
scanning text, Perl can also deal with binary data, and can make dbm
files look like hashes. Setuid Perl scripts are safer than C programs
-through a dataflow tracing mechanism which prevents many stupid
+through a dataflow tracing mechanism that prevents many stupid
security holes.
If you have a problem that would ordinarily use B<sed> or B<awk> or
Described in L<perlre>, with additional examples in L<perlop>.
-=item * enhanced debugger and interactive Perl environment, with intregrated editor support
+=item * enhanced debugger and interactive Perl environment, with integrated editor support
Described in L<perldebug>.
=head1 AVAILABILITY
-Perl is available for the vast majority of operating system platforms,
-including most Unix-like platforms. The following situation is as of
-February 1999 and Perl 5.005_03.
-
-The following platforms are able to build Perl from the standard
-source code distribution available at
-http://www.perl.com/CPAN/src/index.html
-
- AIX Linux SCO ODT/OSR
- A/UX MachTen Solaris
- BeOS MPE/iX SunOS
- BSD/OS NetBSD SVR4
- DG/UX NextSTEP Tru64 UNIX 3)
- DomainOS OpenBSD Ultrix
- DOS DJGPP 1) OpenSTEP UNICOS
- DYNIX/ptx OS/2 VMS
- FreeBSD OS390 2) VOS
- HP-UX PowerMAX Windows 3.1 1)
- Hurd QNX Windows 95 1) 4)
- IRIX Windows 98 1) 4)
- Windows NT 1) 4)
-
- 1) in DOS mode either the DOS or OS/2 ports can be used
- 2) formerly known as MVS
- 3) formerly known as Digital UNIX and before that DEC OSF/1
- 4) compilers: Borland, Cygwin32, Mingw32 EGCS/GCC, VC++
-
-The following platforms have been known to build Perl from the source
-but for the Perl release 5.005_03 we haven't been able to verify them,
-either because the hardware/software platforms are rather rare or
-because we don't have an active champion on these platforms--or both.
-
- 3b1 FPS Plan 9
- AmigaOS GENIX PowerUX
- ConvexOS Greenhills RISC/os
- CX/UX ISC Stellar
- DC/OSx MachTen 68k SVR2
- DDE SMES MiNT TI1500
- DOS EMX MPC TitanOS
- Dynix NEWS-OS UNICOS/mk
- EP/IX Opus Unisys Dynix
- ESIX Unixware
-
-The following platforms are planned to be supported in the standard
-source code distribution of the Perl release 5.006 but are not
-supported in the Perl release 5.005_03:
-
- BS2000
- Netware
- Rhapsody
- VM/ESA
-
-The following platforms have their own source code distributions and
-binaries available via http://www.perl.com/CPAN/ports/index.html.
-
- Perl release
-
- AS/400 5.003
- MacOS 5.004
- Netware 5.003_07
- Tandem Guardian 5.004
-
-The following platforms have only binaries available via
-http://www.perl.com/CPAN/ports/index.html.
-
- Perl release
-
- Acorn RISCOS 5.005_02
- AOS 5.002
- LynxOS 5.004_02
+Perl is available for most operating systems, including virtually
+all Unix-like platforms. See L<perlport/"Supported Platforms">
+for a listing.
=head1 ENVIRONMENT
s2p sed to perl translator
http://www.perl.com/ the Perl Home Page
- http://www.perl.com/CPAN the Comphrehensive Perl Archive
+ http://www.perl.com/CPAN the Comprehensive Perl Archive
=head1 DIAGNOSTICS
-The B<-w> switch produces some lovely diagnostics.
+The C<use warnings> pragma (and the B<-w> switch) produces some
+lovely diagnostics.
See L<perldiag> for explanations of all Perl's diagnostics. The C<use
diagnostics> pragma automatically turns Perl's normally terse warnings
Compilation errors will tell you the line number of the error, with an
indication of the next token or token type that was to be examined.
-(In the case of a script passed to Perl via B<-e> switches, each
+(In a script passed to Perl via B<-e> switches, each
B<-e> is counted as one line.)
Setuid scripts have additional constraints that can produce error
You may mail your bug reports (be sure to include full configuration
information as output by the myconfig program in the perl source
tree, or by C<perl -V>) to perlbug@perl.com . If you've succeeded
-in compiling perl, the perlbug script in the utils/ subdirectory
+in compiling perl, the B<perlbug> script in the F<utils/> subdirectory
can be used to help mail in a bug report.
Perl actually stands for Pathologically Eclectic Rubbish Lister, but
projects / p5sagit/p5-mst-13.2.git / blobdiff