Perl

Type of statement A computer is a tool that has the advantage of performing repetitive tasks. Loop execution, loop statement.Need to make a lot of judgments, conditionally executed, conditional statements.Sequential statements.Summary of True and

Often encounter downloaded files or e-books, the name contains a number of web site information, the actual use because the name is too long inconvenient, the following script uses regular expressions to rename all the files under the directory:For

Part II network Programming with Perl 1 Input/output Basics 1.1 Filehandles Filehandles are the foundation of networked applications. In this section we review the ins and outs of Filehandles. Even if you are a experienced Perl programmer, you

[ORACLE@YYJK esb]$ cat a1.pl use DBI; Use HTTP::D ate qw (time2iso str2time time2iso time2isoz); Use NET::SMTP; Use Encode; My $dbName = ' esbdb '; My $dbUser = ' esbdata '; My $dbUserPass = ' esbdata '; My $dbh = Dbi->connect

In other forums, a lot of the installation of Perl modules, in fact, sometimes very easy to install failure. Especially on Windows, such as tools such as cpan,ppm can be used. At the command line Enter CPAN, eject cpan>, and then enter install

Summarize some of the uses of list and array operations in Perl Suppose you define an array variable @arr and assign the list (str_a, Str_b, Str_c, str_d) to the array @arr @arr = (str_a, Str_b, Str_c, str_d); Assign the number of elements in an

Setting environment variablesExport perl5lib=:/redhat/perl/lib64/perl5Installing DBItar -xzvf dbi-1.631. Tar . GZCD DBI-1.631perl makefile.pl prefix=/redhat/perl make make Test Make InstallInstalling DBDtar -xzvf dbd-sybase-1.15. Tar

With regard to the multi-process of Perl, you may soon think of parallel::forkmanager this module. But today we try to write a similar frame ourselves:)This multi-process development model LIGHTTPD from the Open Source server framework, the core

First, install the ActivePerl, the installation process to automatically add the PATH environment variable, so that after installation, you do not need to manually modify the PATH environment variable;Bring up the command-line window via cmd, enter

This pack, unpack in "Perl language programming" has introducedIt looks complicated.1 #Convert A string to a hexadecimal format2 my $source='ABCD';3 Unpack('h*',$source);4 #Note that this ' H ' is a description converted to 16 binary, followed by an

The LWP (short for ' Library for World Wide Web in Perl') is a block group of modules that are used to obtain network data. "Lwp::simple" by calling the Get ($url) function, you can get the content of the relevant URL. If no error occurs, the Get

The I am using is PAR Packer.1. Downloadmodule PAR Packer:http://search.cpan.org/~rschupp/PAR-Packer-1.024/lib/PAR/Packer.pm2. Installpar Packer:2.1 unzipthe *.tar2.2 Go tothe directory and run "Perl makefile,pl", if you is using Active Perl, you

1. arrays and hash variables in parameters: When defining the parameter list, there are two ways to define an array or hash variable as the input parameter: 1. Add the Backslash "/" before the type name of the array or hash variable. 2. Place

Refer:Http://docstore.mik.ua/orelly/linux/cgi/ch15_03.htm Http://stackoverflow.com/questions/2224158/how-can-i-send-post-and-get-data-to-a-perl-cgi-script-via-the-command-lineHttp://search.cpan.org /~ LDS/cgi. pm-3.20/cgi. PM # debugging  

Sending a script a few days ago is very slow. Using Time can only know the total time, but cannot confirm the reason. We found that devel: nytprof is a very good tool. If you have the root permission, then: Perl-mcpan-e Shell> Installjson: Any)>

Perl ref Functions We all know that Perl has a reference concept: a group of data is actually a reference of another group of data. These references are called pointers. The first group of data stores the header address of the second group of data.

Document directory 1. The variable type is determined by the symbol above it 2. There is no need to declare a variable in advance 3. No type conversion 4. No character type 5./Not division 6. Let's talk about arrays. 8. No struct or union 9

Document directory MySciprt. pl (an example using MyModule) Zz from http://fanqiang.chinaunix.net/program/perl/2005-06-28/3349.shtml   Do you think the module documentation in perl is difficult? Okay, here is the simplest module in the world.

Http://www.mdbbs.org/thread-28471-1-1.html This is a reference method when I learn Perl, I feel very good, share with you: Each person has different learning methods. The following are some examples for your reference. If Perl is the first