$ ./4.ping3.pl
...
Error utime () on '/home/bob/Documents/meditations/template_stuff/1.monk.tmpl': Permission denied at ./4.ping3.pl line 26.
$ sudo perl 4.ping3.pl
...
### www.google.com is unreachable
### www.translate.yandex.ru is unreachable
### www.bing.com is unreachable
### www.yahoo.com is unreachable
return3 is done with pinging
13seconds elapsed during pinging