Prewritten actions we've seen

• any web page called via GET with no fields
• http://www.uoregon.edu/cgi-bin/post-query (for testing POST)
• http://search.uoregon.edu/cgi-bin/query
• http://www.uoregon.edu/cgi-bin/form-mail.pl

Other prewritten actions

• Specialized web servers (e.g. database servers)
• Copy a program from a script library and install in your public_html

Custom actions you write

• Write your own CGI script that parses input and returns output

A"finger" script