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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:43:11 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:43:11 +0000
commitfc22b3d6507c6745911b9dfcc68f1e665ae13dbc (patch)
treece1e3bce06471410239a6f41282e328770aa404a /upstream/mageia-cauldron/man1/perl.1
parentInitial commit. (diff)
downloadmanpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.tar.xz
manpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.zip
Adding upstream version 4.22.0.upstream/4.22.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+.\" -*- mode: troff; coding: utf-8 -*-
+.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
+.\"
+.\" Standard preamble:
+.\" ========================================================================
+.de Sp \" Vertical space (when we can't use .PP)
+.if t .sp .5v
+.if n .sp
+..
+.de Vb \" Begin verbatim text
+.ft CW
+.nf
+.ne \\$1
+..
+.de Ve \" End verbatim text
+.ft R
+.fi
+..
+.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
+.ie n \{\
+. ds C` ""
+. ds C' ""
+'br\}
+.el\{\
+. ds C`
+. ds C'
+'br\}
+.\"
+.\" Escape single quotes in literal strings from groff's Unicode transform.
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\"
+.\" If the F register is >0, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
+.\" entries marked with X<> in POD. Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
+.de IX
+..
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{\
+. if \nF \{\
+. de IX
+. tm Index:\\$1\t\\n%\t"\\$2"
+..
+. if !\nF==2 \{\
+. nr % 0
+. nr F 2
+. \}
+. \}
+.\}
+.rr rF
+.\" ========================================================================
+.\"
+.IX Title "PERL 1"
+.TH PERL 1 2023-11-28 "perl v5.38.2" "Perl Programmers Reference Guide"
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH NAME
+perl \- The Perl 5 language interpreter
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+\&\fBperl\fR [\ \fB\-sTtuUWX\fR\ ]
+ [\ \fB\-hv\fR\ ]\ [\ \fB\-V\fR[:\fIconfigvar\fR]\ ]
+ [\ \fB\-cw\fR\ ]\ [\ \fB\-d\fR[\fBt\fR][:\fIdebugger\fR]\ ]\ [\ \fB\-D\fR[\fInumber/list\fR]\ ]
+ [\ \fB\-pna\fR\ ]\ [\ \fB\-F\fR\fIpattern\fR\ ]\ [\ \fB\-l\fR[\fIoctal\fR]\ ]\ [\ \fB\-0\fR[\fIoctal/hexadecimal\fR]\ ]
+ [\ \fB\-I\fR\fIdir\fR\ ]\ [\ \fB\-m\fR[\fB\-\fR]\fImodule\fR\ ]\ [\ \fB\-M\fR[\fB\-\fR]\fI'module...'\fR\ ]\ [\ \fB\-f\fR\ ]
+ [\ \fB\-C\ [\fR\f(BInumber/list\fR\fB]\ \fR]
+ [\ \fB\-S\fR\ ]
+ [\ \fB\-x\fR[\fIdir\fR]\ ]
+ [\ \fB\-i\fR[\fIextension\fR]\ ]
+ [\ [\fB\-e\fR|\fB\-E\fR]\ \fI'command'\fR\ ]\ [\ \fB\-\-\fR\ ]\ [\ \fIprogramfile\fR\ ]\ [\ \fIargument\fR\ ]...
+.PP
+For more information on these options, you can run \f(CW\*(C`perldoc perlrun\*(C'\fR.
+.SH "GETTING HELP"
+.IX Header "GETTING HELP"
+The \fIperldoc\fR program gives you access to all the documentation that comes
+with Perl. You can get more documentation, tutorials and community support
+online at <https://www.perl.org/>.
+.PP
+If you're new to Perl, you should start by running \f(CW\*(C`perldoc perlintro\*(C'\fR,
+which is a general intro for beginners and provides some background to help
+you navigate the rest of Perl's extensive documentation. Run \f(CW\*(C`perldoc
+perldoc\*(C'\fR to learn more things you can do with \fIperldoc\fR.
+.PP
+For ease of access, the Perl manual has been split up into several sections.
+.SS Overview
+.IX Subsection "Overview"
+.Vb 4
+\& perl Perl overview (this section)
+\& perlintro Perl introduction for beginners
+\& perlrun Perl execution and options
+\& perltoc Perl documentation table of contents
+.Ve
+.SS Tutorials
+.IX Subsection "Tutorials"
+.Vb 3
+\& perlreftut Perl references short introduction
+\& perldsc Perl data structures intro
+\& perllol Perl data structures: arrays of arrays
+\&
+\& perlrequick Perl regular expressions quick start
+\& perlretut Perl regular expressions tutorial
+\&
+\& perlootut Perl OO tutorial for beginners
+\&
+\& perlperf Perl Performance and Optimization Techniques
+\&
+\& perlstyle Perl style guide
+\&
+\& perlcheat Perl cheat sheet
+\& perltrap Perl traps for the unwary
+\& perldebtut Perl debugging tutorial
+\&
+\& perlfaq Perl frequently asked questions
+\& perlfaq1 General Questions About Perl
+\& perlfaq2 Obtaining and Learning about Perl
+\& perlfaq3 Programming Tools
+\& perlfaq4 Data Manipulation
+\& perlfaq5 Files and Formats
+\& perlfaq6 Regexes
+\& perlfaq7 Perl Language Issues
+\& perlfaq8 System Interaction
+\& perlfaq9 Networking
+.Ve
+.SS "Reference Manual"
+.IX Subsection "Reference Manual"
+.Vb 10
+\& perlsyn Perl syntax
+\& perldata Perl data structures
+\& perlop Perl operators and precedence
+\& perlsub Perl subroutines
+\& perlfunc Perl built\-in functions
+\& perlopentut Perl open() tutorial
+\& perlpacktut Perl pack() and unpack() tutorial
+\& perlpod Perl plain old documentation
+\& perlpodspec Perl plain old documentation format specification
+\& perldocstyle Perl style guide for core docs
+\& perlpodstyle Perl POD style guide
+\& perldiag Perl diagnostic messages
+\& perldeprecation Perl deprecations
+\& perllexwarn Perl warnings and their control
+\& perldebug Perl debugging
+\& perlvar Perl predefined variables
+\& perlre Perl regular expressions, the rest of the story
+\& perlrebackslash Perl regular expression backslash sequences
+\& perlrecharclass Perl regular expression character classes
+\& perlreref Perl regular expressions quick reference
+\& perlref Perl references, the rest of the story
+\& perlform Perl formats
+\& perlobj Perl objects
+\& perltie Perl objects hidden behind simple variables
+\& perlclass Perl class syntax
+\& perldbmfilter Perl DBM filters
+\&
+\& perlipc Perl interprocess communication
+\& perlfork Perl fork() information
+\& perlnumber Perl number semantics
+\&
+\& perlthrtut Perl threads tutorial
+\&
+\& perlport Perl portability guide
+\& perllocale Perl locale support
+\& perluniintro Perl Unicode introduction
+\& perlunicode Perl Unicode support
+\& perlunicook Perl Unicode cookbook
+\& perlunifaq Perl Unicode FAQ
+\& perluniprops Index of Unicode properties in Perl
+\& perlunitut Perl Unicode tutorial
+\& perlebcdic Considerations for running Perl on EBCDIC platforms
+\&
+\& perlsec Perl security
+\& perlsecpolicy Perl security report handling policy
+\&
+\& perlmod Perl modules: how they work
+\& perlmodlib Perl modules: how to write and use
+\& perlmodstyle Perl modules: how to write modules with style
+\& perlmodinstall Perl modules: how to install from CPAN
+\& perlnewmod Perl modules: preparing a new module for distribution
+\& perlpragma Perl modules: writing a user pragma
+\&
+\& perlutil utilities packaged with the Perl distribution
+\&
+\& perlfilter Perl source filters
+\&
+\& perldtrace Perl\*(Aqs support for DTrace
+\&
+\& perlglossary Perl Glossary
+.Ve
+.SS "Internals and C Language Interface"
+.IX Subsection "Internals and C Language Interface"
+.Vb 12
+\& perlembed Perl ways to embed perl in your C or C++ application
+\& perldebguts Perl debugging guts and tips
+\& perlxstut Perl XS tutorial
+\& perlxs Perl XS application programming interface
+\& perlxstypemap Perl XS C/Perl type conversion tools
+\& perlclib Internal replacements for standard C library functions
+\& perlguts Perl internal functions for those doing extensions
+\& perlcall Perl calling conventions from C
+\& perlmroapi Perl method resolution plugin interface
+\& perlreapi Perl regular expression plugin interface
+\& perlreguts Perl regular expression engine internals
+\& perlclassguts Internals of class syntax
+\&
+\& perlapi Perl API listing (autogenerated)
+\& perlintern Perl internal functions (autogenerated)
+\& perliol C API for Perl\*(Aqs implementation of IO in Layers
+\& perlapio Perl internal IO abstraction interface
+\&
+\& perlhack Perl hackers guide
+\& perlsource Guide to the Perl source tree
+\& perlinterp Overview of the Perl interpreter source and how it works
+\& perlhacktut Walk through the creation of a simple C code patch
+\& perlhacktips Tips for Perl core C code hacking
+\& perlpolicy Perl development policies
+\& perlgov Perl Rules of Governance
+\& perlgit Using git with the Perl repository
+.Ve
+.SS History
+.IX Subsection "History"
+.Vb 10
+\& perlhist Perl history records
+\& perldelta Perl changes since previous version
+\& perl5381delta Perl changes in version 5.38.1
+\& perl5380delta Perl changes in version 5.38.0
+\& perl5363delta Perl changes in version 5.36.3
+\& perl5362delta Perl changes in version 5.36.2
+\& perl5361delta Perl changes in version 5.36.1
+\& perl5360delta Perl changes in version 5.36.0
+\& perl5343delta Perl changes in version 5.34.3
+\& perl5342delta Perl changes in version 5.34.2
+\& perl5341delta Perl changes in version 5.34.1
+\& perl5340delta Perl changes in version 5.34.0
+\& perl5321delta Perl changes in version 5.32.1
+\& perl5320delta Perl changes in version 5.32.0
+\& perl5303delta Perl changes in version 5.30.3
+\& perl5302delta Perl changes in version 5.30.2
+\& perl5301delta Perl changes in version 5.30.1
+\& perl5300delta Perl changes in version 5.30.0
+\& perl5283delta Perl changes in version 5.28.3
+\& perl5282delta Perl changes in version 5.28.2
+\& perl5281delta Perl changes in version 5.28.1
+\& perl5280delta Perl changes in version 5.28.0
+\& perl5263delta Perl changes in version 5.26.3
+\& perl5262delta Perl changes in version 5.26.2
+\& perl5261delta Perl changes in version 5.26.1
+\& perl5260delta Perl changes in version 5.26.0
+\& perl5244delta Perl changes in version 5.24.4
+\& perl5243delta Perl changes in version 5.24.3
+\& perl5242delta Perl changes in version 5.24.2
+\& perl5241delta Perl changes in version 5.24.1
+\& perl5240delta Perl changes in version 5.24.0
+\& perl5224delta Perl changes in version 5.22.4
+\& perl5223delta Perl changes in version 5.22.3
+\& perl5222delta Perl changes in version 5.22.2
+\& perl5221delta Perl changes in version 5.22.1
+\& perl5220delta Perl changes in version 5.22.0
+\& perl5203delta Perl changes in version 5.20.3
+\& perl5202delta Perl changes in version 5.20.2
+\& perl5201delta Perl changes in version 5.20.1
+\& perl5200delta Perl changes in version 5.20.0
+\& perl5184delta Perl changes in version 5.18.4
+\& perl5182delta Perl changes in version 5.18.2
+\& perl5181delta Perl changes in version 5.18.1
+\& perl5180delta Perl changes in version 5.18.0
+\& perl5163delta Perl changes in version 5.16.3
+\& perl5162delta Perl changes in version 5.16.2
+\& perl5161delta Perl changes in version 5.16.1
+\& perl5160delta Perl changes in version 5.16.0
+\& perl5144delta Perl changes in version 5.14.4
+\& perl5143delta Perl changes in version 5.14.3
+\& perl5142delta Perl changes in version 5.14.2
+\& perl5141delta Perl changes in version 5.14.1
+\& perl5140delta Perl changes in version 5.14.0
+\& perl5125delta Perl changes in version 5.12.5
+\& perl5124delta Perl changes in version 5.12.4
+\& perl5123delta Perl changes in version 5.12.3
+\& perl5122delta Perl changes in version 5.12.2
+\& perl5121delta Perl changes in version 5.12.1
+\& perl5120delta Perl changes in version 5.12.0
+\& perl5101delta Perl changes in version 5.10.1
+\& perl5100delta Perl changes in version 5.10.0
+\& perl589delta Perl changes in version 5.8.9
+\& perl588delta Perl changes in version 5.8.8
+\& perl587delta Perl changes in version 5.8.7
+\& perl586delta Perl changes in version 5.8.6
+\& perl585delta Perl changes in version 5.8.5
+\& perl584delta Perl changes in version 5.8.4
+\& perl583delta Perl changes in version 5.8.3
+\& perl582delta Perl changes in version 5.8.2
+\& perl581delta Perl changes in version 5.8.1
+\& perl58delta Perl changes in version 5.8.0
+\& perl561delta Perl changes in version 5.6.1
+\& perl56delta Perl changes in version 5.6
+\& perl5005delta Perl changes in version 5.005
+\& perl5004delta Perl changes in version 5.004
+.Ve
+.SS Miscellaneous
+.IX Subsection "Miscellaneous"
+.Vb 2
+\& perlbook Perl book information
+\& perlcommunity Perl community information
+\&
+\& perldoc Look up Perl documentation in Pod format
+\&
+\& perlexperiment A listing of experimental features in Perl
+\&
+\& perlartistic Perl Artistic License
+\& perlgpl GNU General Public License
+.Ve
+.SS Language-Specific
+.IX Subsection "Language-Specific"
+.Vb 4
+\& perlcn Perl for Simplified Chinese (in UTF\-8)
+\& perljp Perl for Japanese (in EUC\-JP)
+\& perlko Perl for Korean (in EUC\-KR)
+\& perltw Perl for Traditional Chinese (in Big5)
+.Ve
+.SS Platform-Specific
+.IX Subsection "Platform-Specific"
+.Vb 10
+\& perlaix Perl notes for AIX
+\& perlamiga Perl notes for AmigaOS
+\& perlandroid Perl notes for Android
+\& perlbs2000 Perl notes for POSIX\-BC BS2000
+\& perlcygwin Perl notes for Cygwin
+\& perlfreebsd Perl notes for FreeBSD
+\& perlhaiku Perl notes for Haiku
+\& perlhpux Perl notes for HP\-UX
+\& perlhurd Perl notes for Hurd
+\& perlirix Perl notes for Irix
+\& perllinux Perl notes for Linux
+\& perlmacosx Perl notes for Mac OS X
+\& perlopenbsd Perl notes for OpenBSD
+\& perlos2 Perl notes for OS/2
+\& perlos390 Perl notes for OS/390
+\& perlos400 Perl notes for OS/400
+\& perlplan9 Perl notes for Plan 9
+\& perlqnx Perl notes for QNX
+\& perlriscos Perl notes for RISC OS
+\& perlsolaris Perl notes for Solaris
+\& perlsynology Perl notes for Synology
+\& perltru64 Perl notes for Tru64
+\& perlvms Perl notes for VMS
+\& perlvos Perl notes for Stratus VOS
+\& perlwin32 Perl notes for Windows
+.Ve
+.SS "Stubs for Deleted Documents"
+.IX Subsection "Stubs for Deleted Documents"
+.Vb 6
+\& perlboot
+\& perlbot
+\& perlrepository
+\& perltodo
+\& perltooc
+\& perltoot
+.Ve
+.PP
+On a Unix-like system, these documentation files will usually also be
+available as manpages for use with the \fIman\fR program.
+.PP
+Some documentation is not available as man pages, so if a
+cross-reference is not found by man, try it with perldoc. Perldoc can
+also take you directly to documentation for functions (with the \fB\-f\fR
+switch). See \f(CW\*(C`perldoc\ \-\-help\*(C'\fR (or \f(CW\*(C`perldoc\ perldoc\*(C'\fR or
+\&\f(CW\*(C`man\ perldoc\*(C'\fR) for other helpful options perldoc has to offer.
+.PP
+In general, if something strange has gone wrong with your program and you're
+not sure where you should look for help, try making your code comply with
+\&\fBuse strict\fR and \fBuse warnings\fR. These will often point out exactly
+where the trouble is.
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+Perl officially stands for Practical Extraction and Report Language,
+except when it doesn't.
+.PP
+Perl was originally a language optimized for scanning arbitrary
+text files, extracting information from those text files, and printing
+reports based on that information. It quickly became a good language
+for many system management tasks. Over the years, Perl has grown into
+a general-purpose programming language. It's widely used for everything
+from quick "one-liners" to full-scale application development.
+.PP
+The language is intended to be practical (easy to use, efficient,
+complete) rather than beautiful (tiny, elegant, minimal). It combines
+(in the author's opinion, anyway) some of the best features of \fBsed\fR,
+\&\fBawk\fR, and \fBsh\fR, making it familiar and easy to use for Unix users to
+whip up quick solutions to annoying problems. Its general-purpose
+programming facilities support procedural, functional, and
+object-oriented programming paradigms, making Perl a comfortable
+language for the long haul on major projects, whatever your bent.
+.PP
+Perl's roots in text processing haven't been forgotten over the years.
+It still boasts some of the most powerful regular expressions to be
+found anywhere, and its support for Unicode text is world-class. It
+handles all kinds of structured text, too, through an extensive
+collection of extensions. Those libraries, collected in the CPAN,
+provide ready-made solutions to an astounding array of problems. When
+they haven't set the standard themselves, they steal from the best
+\&\-\- just like Perl itself.
+.SH AVAILABILITY
+.IX Header "AVAILABILITY"
+Perl is available for most operating systems, including virtually
+all Unix-like platforms. See "Supported Platforms" in perlport
+for a listing.
+.SH ENVIRONMENT
+.IX Header "ENVIRONMENT"
+See "ENVIRONMENT" in perlrun.
+.SH AUTHOR
+.IX Header "AUTHOR"
+Larry Wall <larry@wall.org>, with the help of oodles of other folks.
+.PP
+If your Perl success stories and testimonials may be of help to others
+who wish to advocate the use of Perl in their applications,
+or if you wish to simply express your gratitude to Larry and the
+Perl developers, please write to perl\-thanks@perl.org .
+.SH FILES
+.IX Header "FILES"
+.Vb 1
+\& "@INC" locations of perl libraries
+.Ve
+.PP
+"@INC" above is a reference to the built-in variable of the same name;
+see perlvar for more information.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+.Vb 4
+\& https://www.perl.org/ the Perl homepage
+\& https://www.perl.com/ Perl articles
+\& https://www.cpan.org/ the Comprehensive Perl Archive
+\& https://www.pm.org/ the Perl Mongers
+.Ve
+.SH DIAGNOSTICS
+.IX Header "DIAGNOSTICS"
+Using the \f(CW\*(C`use strict\*(C'\fR pragma ensures that all variables are properly
+declared and prevents other misuses of legacy Perl features.
+These are enabled by default within the scope of
+\&\f(CW\*(C`use v5.12\*(C'\fR (or higher).
+.PP
+The \f(CW\*(C`use warnings\*(C'\fR pragma produces some lovely diagnostics.
+It is enabled by default when you say \f(CW\*(C`use v5.35\*(C'\fR (or higher).
+One can also use the \fB\-w\fR flag, but its use is normally discouraged,
+because it gets applied to all executed Perl code, including that not under
+your control.
+.PP
+See perldiag for explanations of all Perl's diagnostics. The \f(CW\*(C`use
+diagnostics\*(C'\fR pragma automatically turns Perl's normally terse warnings
+and errors into these longer forms.
+.PP
+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 a script passed to Perl via \fB\-e\fR switches, each
+\&\fB\-e\fR is counted as one line.)
+.PP
+Setuid scripts have additional constraints that can produce error
+messages such as "Insecure dependency". See perlsec.
+.PP
+Did we mention that you should definitely consider using the \fBuse warnings\fR
+pragma?
+.SH BUGS
+.IX Header "BUGS"
+The behavior implied by the \fBuse warnings\fR pragma is not mandatory.
+.PP
+Perl is at the mercy of your machine's definitions of various
+operations such as type casting, \fBatof()\fR, and floating-point
+output with \fBsprintf()\fR.
+.PP
+If your stdio requires a seek or eof between reads and writes on a
+particular stream, so does Perl. (This doesn't apply to \fBsysread()\fR
+and \fBsyswrite()\fR.)
+.PP
+While none of the built-in data types have any arbitrary size limits
+(apart from memory size), there are still a few arbitrary limits: a
+given variable name may not be longer than 251 characters. Line numbers
+displayed by diagnostics are internally stored as short integers,
+so they are limited to a maximum of 65535 (higher numbers usually being
+affected by wraparound).
+.PP
+You may submit your bug reports (be sure to include full configuration
+information as output by the myconfig program in the perl source
+tree, or by \f(CW\*(C`perl \-V\*(C'\fR) to <https://github.com/Perl/perl5/issues>.
+.PP
+Perl actually stands for Pathologically Eclectic Rubbish Lister, but
+don't tell anyone I said that.
+.SH NOTES
+.IX Header "NOTES"
+The Perl motto is "There's more than one way to do it." Divining
+how many more is left as an exercise to the reader.
+.PP
+The three principal virtues of a programmer are Laziness,
+Impatience, and Hubris. See the Camel Book for why.