How to set environment variable

 
Hi All,

I am new to perl. I am using "Active Perl-5.8.8"

I want to set environment variable in a perl script

Ex - #!/usr/bin/perl
$ENV{HAI} = "hai";


and want to display the contents of the environment variable in the command line after executing the script.

But it is not displaying the contents if i give
echo $HAI

Please help me out

Thanks in advance
Vikram

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