User-agent: *
Disallow: /

User-agent: Googlebot
Crawl-delay: 3
Disallow: /cgi-bin/
Disallow: /libs/
Disallow: /tmp/
Disallow: /etc/

User-agent: Yahoo! Slurp
Crawl-delay: 3
Disallow: /cgi-bin/
Disallow: /libs/
Disallow: /tmp/
Disallow: /etc/

User-agent: bingbot
Crawl-delay: 3
Disallow: /cgi-bin/
Disallow: /libs/
Disallow: /tmp/
Disallow: /etc/