Misc. admin command Q's

[ImNeat]

Is there a way to check who (which users) are logged into the server?

Also, is there a way to send a message to all other users logged in?

(No x, just command line)

[daark.child]

You can use "who" or "w" to check for the users logged into a Unix system. You can use programs like "write" and "talk" to send users messages.

[ImNeat]

Awesome, thanks!

How do you exit a "write" session? Don't quite follow the manpage...

When you are done, type an end-of-file or interrupt character.  The other user will
       see the message EOF indicating that the conversation is over.

?

[daark.child]

I use CTRL-D to indicate that I have finished typing the message (so CTRL-D is the EOF character). When you enter the EOF character, the message is sent immediately to the other user.