sub ConfigRead {
    my %hArgs = @_;
    
    # stick some cool stuff in their variables
}

##</code><code>##

die "horribly" if $hArgs{sFILE} eq 'BAD';

##</code><code>##

die "horribly" if !exists $hArgs{sFILE};

##</code><code>##

$hArgs{sFILE} //= 'default.sFile';