Perl Training for Beginners

Опубликовано - Последнее изменение:

Perl stands for Practical Extraction and Report Language.

Perl is a general-purpose programming language originally developed for text manipulation and now used for a wide range of tasks including system administration, web development, network programming, GUI development, and more.

 

Perl Features

 

  •  Perl is a stable, cross platform programming language.
  •   Perl is Open Source software, licensed under the GNU General Public License (GPL).
  •   Perl was created by Larry Wall.
  •   Perl takes the best features from other languages, such as C, awk, sed, sh, and BASIC, among others.
  •   Perl’s database integration interface (DBI) supports third-party databases including Oracle, Sybase, Postgres, MySQL and others.
  •   Perl works with HTML, XML, and other mark-up languages. It can be used also for developing dynamic web applications as CGIs.
  •   Perl supports both procedural and object-oriented programming.
  •   Perl is extensible. There are over 1000 third party modules available from the Comprehensive Perl Archive Network (CPAN).
  •   Safety net(strict,warnings)
  •   Perl can be embedded into web servers to speed up processing.
  •   Perl's mod_perl allows the Apache web server to embed a Perl interpreter.

 

Running Perl programs

To run a Perl program from the Unix command line:

perl progname.pl

Alternatively, put this as the first line of your script:

 #!/usr/bin/env perl

chmod 755 script.pl (under Unix).

Run the script as /path/to/script.pl.

 

Basic Syntex:

 

§  print("Hello, world\n");
§  print "Hello, world\n";
§  print 42;

Опубликовано 30 ноября, 2015

Ela

Perl/CGI, Mod Perl, UNIX, Shell Scripting & Python

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