Solaris equivalent to Windows Find command

I am new to Unix and want to know the unix equivalent for the windows find command?

In otherwords, on Unix/Solaris 8 if I issue a command that displays text to the screen--On unix how do I:

1. Pass that output to another command?
2. What command will filter the results to only display lines with text ??

For example on Windows I would issue  the command:

            netstat | find ":5605"

To find only those connections on port 5605.

I would like the syntax for doing the same thing on Solaris 8.