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Full Discussion: perl package question
Top Forums Shell Programming and Scripting perl package question Post 302123712 by hankooknara on Tuesday 26th of June 2007 09:42:16 PM
Old 06-26-2007
perl package question
can someone tell me how below package command worked?

I understand how global1.pl works.. but i don't see how global3.pl is working..
Is package Fred command having first output look into $main:name???

[root@localhost perl]# cat global3.pl
#!/usr/bin/perl -w

#use strict;

$main::name = "Your name Here";
$Fred::name = "Fred Flintstone";
$Barney::name = "Barney Rubble";

print "\$name in package main is $name\n";
package Fred;
print "\$name in package Fred is $name\n";
package Barney;
print "\$name in package Barney is $name\n";
package main;
[root@localhost perl]# cat global1.pl
#!/usr/bin/perl -w

#use strict;

$main::name = "Your name Here";
$Fred::name = "Fred Flintstone";
$Barney::name = "Barney Rubble";

print "\$name in package main is $name\n";
print "\$name in package Fred is $Fred::name\n";
print "\$name in package Barney is $Barney::name\n";
[root@localhost perl]# ./global3.pl
$name in package main is Your name Here
$name in package Fred is Fred Flintstone
$name in package Barney is Barney Rubble
[root@localhost perl]# ./global1.pl
$name in package main is Your name Here
$name in package Fred is Fred Flintstone
$name in package Barney is Barney Rubble
 

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LEARN ABOUT MOJAVE

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
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