Download Red Hat Enterprise Linux 6 Developer Guide
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Red Hat Ent erprise Linux 6 Developer G uide The official module packages can be installed with yum or rpm from the Red Hat Enterprise Linux repositories. They are installed to /usr/share/perl 5 and either /usr/l i b/perl 5 for 32bit architectures or /usr/l i b6 4 /perl 5 for 64bit architectures. Mo d u les f ro m C PAN Use the cpan tool provided by the perl-CPAN package to install modules directly from the CPAN website. They are installed to /usr/l o cal /share/perl 5 and either /usr/l o cal /l i b/perl 5 for 32bit architectures or /usr/l o cal /l i b6 4 /perl 5 for 64bit architectures. T h ird p art y mo d u le p ackag e Third party modules are installed to /usr/share/perl 5/vend o r_perl and either /usr/l i b/perl 5/vend o r_perl for 32bit architectures or /usr/l i b6 4 /perl 5/vend o r_perl for 64bit architectures. C u st o m mo d u le p ackag e / man u ally in st alled mo d u le These should be placed in the same directories as third-party modules. That is, /usr/share/perl 5/vend o r_perl and either /usr/l i b/perl 5/vend o r_perl for 32bit architectures or /usr/l i b6 4 /perl 5/vend o r_perl for 64bit architectures. Warning If an official version of a module is already installed, installing its non-official version can create conflicts in the /usr/share/man directory. 3.3.1 1 .3. Pe rl Do cum e nt at io n The perl d o c tool provides documentation on language and core modules. To learn more about a module, use perl d o c mo d ul e_name. For example, perl d o c C G I will display the following information about the CGI core module: NAME CGI - Handle Common Gateway Interface requests and responses SYNOPSIS use CGI; my $q = CGI->new; [...] DESCRIPTION CGI.pm is a stable, complete and mature solution for processing and preparing HTTP requests and responses. Major features including processing form submissions, file uploads, reading and writing cookies, query string generation and manipulation, and processing and preparing HTTP headers. Some HTML generation utilities are included as well. [...] PROGRAMMING STYLE There are two styles of programming with CGI.pm, an object-oriented 60