# Block googlebot from example.com/directory1/... and example.com/directory2/...
# but allow access to directory2/subdirectory1/...
# All other directories on the site are allowed by default.
User-agent: googlebot
Disallow: /directory1/
Disallow: /directory2/
Allow: /directory2/subdirectory1/

# Block the entire site from anothercrawler.