Try using Data::Dumper to see what is in %ENV, it is posible that user bin explicity unsets USER or some other shenanigains. This is the output that I get on my box (Dapper drake server).

env.pl, the test script 
#!/usr/bin/perl -w
use strict;

use Data::Dumper;

print Dumper(\%ENV);

[download]
And the output:
trizor@trap:/home$ sudo su - greg -c /home/env.pl 
$VAR1 = {
          'HOME' => '/home/greg',
          'LOGNAME' => 'greg',
          'SHLVL' => '1',
          '_' => '/home/dummy.pl',
          'SHELL' => '/bin/bash',
          'TERM' => 'xterm',
          'PWD' => '/home/greg',
          'USER' => 'greg',
          'LANG' => 'en_US.UTF-8'
        };

[download]

As you can see, USER is there plain as day.

In reply to Re: Obtaining %ENV values via su cmd by Trizor
in thread Obtaining %ENV values via su cmd by chrism01

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