That's not going to work, if you're trying to capture the text.  If you want to make an assignment, use qx (same as the `...` operator).  When you use system, the return value has a different meaning (it's the program's exit status).

Why don't you try what jettero suggested? ...

use strict;
use warnings;
                                                                      
+          
my $user = 'root';
my $chk_user = `ypmatch $user password 2>&1`;
print "Results of 'ypmatch' for user '$user' => '$chk_user'\n";
[download]