User-agent: Yandex
Disallow: /site.php
Disallow: /delete.php
Disallow: /edit.php
Disallow: /command.php

User-agent: StackRambler
Disallow: /site.php
Disallow: /delete.php
Disallow: /edit.php
Disallow: /command.php

User-agent: Googlebot
Disallow: /site.php
Disallow: /delete.php
Disallow: /edit.php
Disallow: /command.php

User-agent: *
Disallow: /