Summary

For awhile, you've known that there are other users on your computer system, and you've even learned how to find out what they're doing (with the w command). Now you know how to communicate with them, too!

Here's a word of advice: It can be frustrating and annoying to be pestered by unknown folk, so I recommend that you begin by sending mail to yourself and then to just your friends on the system. After some practice, you'll learn how net etiquette works and what is or isn't appropriate for your electronic mail.

You can learn a lot more about network etiquette by visiting my online Network Etiquette Primer at http://www.intuitive.com/tyu24/netiq.html.