Greg Albrecht

Here’s a way to use variables in both bash and perl.

From Perl

1. Start with a config file, we’ll call it ‘conf.ph’:

   #!/usr/bin/perl
   %vars = (
   HOME => '/home/gba',
   NAME => 'greg a' );
   

2. from there we can load ‘conf.ph’ into any of our perl scripts

   #!/usr/bin/perl
   require 'conf.ph';
   

3. load its variables

   #!/usr/bin/perl
   require 'conf.ph';
   print "my name is: " , $vars{'NAME'} , "\n";
   

from bash

1. using the same conf.ph we create a primer script to load the perl variables into the environment:

   #!/usr/bin/perl
   include "conf.ph";
   while ( my ($key, $value) = each(%vars) )
   {
   $ENV{$key} = $value;
   }
   

2. we can then execute our shell script from with-in our primer script

   #!/usr/bin/perl
   include "conf.ph";
   while ( my ($key, $value) = each(%vars) )
   {
   $ENV{$key} = $value;
   }
   system("/bin/myname.sh");
   

3. /bin/myname.sh:

   #!/bin/sh
   echo "my name is $NAME"