Movatterモバイル変換


[0]ホーム

URL:


You are viewing the version of this documentation from Perl 5.16.2.View the latest version

#Perl 5.16.2 Documentation

Theperldoc program gives you access to all the documentation that comes with Perl. You can get more documentation, tutorials and community support online athttp://www.perl.org/.

If you're new to Perl, you should start by runningperldoc perlintro, which is a general intro for beginners and provides some background to help you navigate the rest of Perl's extensive documentation. Runperldoc perldoc to learn more things you can do withperldoc.

For ease of access, the Perl manual has been split up into several sections.

Full perl(1) documentation:perl

#Reference Lists

#More Info

#About Perl

Perl officially stands for Practical Extraction and Report Language, except when it doesn't.

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.

The language is intended to be practical (easy to use, efficient, complete) rather than beautiful (tiny, elegant, minimal).

Perl combines (in the author's opinion, anyway) some of the best features of C,sed,awk, andsh, so people familiar with those languages should have little difficulty with it. (Language historians will also note some vestiges ofcsh, Pascal, and even 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 quickly. Although optimized for scanning text, Perl also has many excellent tools for slicing and dicing binary data.

But wait, there's more...

Begun in 1993 (seeperlhist), Perl version 5 is nearly a complete rewrite that provides the following additional benefits:

Okay, that'sdefinitely enough hype.

Perldoc Browser is maintained by Dan Book (DBOOK). Please contact him via theGitHub issue tracker oremail regarding any issues with the site itself, search, or rendering of documentation.

The Perl documentation is maintained by the Perl 5 Porters in the development of Perl. Please contact them via thePerl issue tracker, themailing list, orIRC to report any issues with the contents or format of the documentation.


[8]ページ先頭

©2009-2025 Movatter.jp