Last Login:            (none) (interactive),            (none) (non-interactive)
Last Login:            (none) (interactive), 12-SEP-1997 11:33 (non-interactive)
Last Login: 11-JUL-2002 18:08 (interactive),            (none) (non-interactive)

##</code><code>##

    /^Last Login:\s+.*,\s*(\d+.*?\:\d+)/ and
       print "$1,$2\n";