use strict;
use warnings;
my $cmd = '/opt/sudo/sudo /usr/bin/su - $ENV{LOGNAME} -c "$someScript"';
$cmd = eval "\"$cmd\"";
print($cmd, "\n");

##</code><code>##

Scalar found where operator expected at (eval 1) line 1, near ""/opt/sudo/sudo /usr/bin/su - $ENV{LOGNAME} -c "$someScript"
        (Missing operator before $someScript?)
String found where operator expected at (eval 1) line 1, near "$someScript"""
        (Missing operator before ""?)
Use of uninitialized value in print at 574310.pl line 5.