08-30-2010
Quote:
Originally Posted by
figaro
STOIE is making a good point: what is the role in which you operate? It makes a difference which is recommended depending on whether you want to be a sysadmin or developer.
Yes, this is true...
What "level" do you want to dig into...?
If you wish to create CGI and things that are generally speaking not "SYSTEM" level, then maybe you will only need Perl and very basic BASH (you will always need BASH though..)
However, if you wish to dig into "SYSTEM" level stuff, which I imagine is the case being on unix.com and all, then definitely learn BASH and get that very firm before you even bother considering Perl.
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LEARN ABOUT DEBIAN
perl::destruct::level
Level(3pm) User Contributed Perl Documentation Level(3pm)
NAME
Perl::Destruct::Level - Allow to change perl's destruction level
SYNOPSIS
use Perl::Destruct::Level level => 1;
my $current_destruct_level = Perl::Destruct::Level::get_destruct_level();
DESCRIPTION
This module allows to change perl's internal destruction level.
The default value of the destruct level is 0; it means that perl won't bother destroying all its internal data structures, but let the OS
do the cleanup for it at exit.
For perls built with debugging support ("-DDEBUGGING"), an environment variable "PERL_DESTRUCT_LEVEL" allows to control the destruction
level. This modules enables to modify it on non-debugging perls too.
Relevant values recognized by perl are 1 and 2. Consult your source code to know exactly what they mean. Note that some embedded
environments might extend the meaning of the destruction level for their own purposes: mod_perl does that, for example.
CAVEATS
This module won't work when used from within an END block.
Loading the "threads" module will set the destruction level to 2. (This is to enable spawned threads to properly cleanup their objects.)
Loading modules that load "threads", even if they don't spawn threads, will also set the destruction level to 2. (A common example of such
a module is "Test::Builder".)
AUTHOR
Copyright (c) 2007 Rafael Garcia-Suarez. This program is free software; you may redistribute it and/or modify it under the same terms as
Perl itself.
SEE ALSO
perlrun, perlhack
perl v5.14.2 2007-12-03 Level(3pm)