talk (提供了一个文本聊天界面)

Talk is a visual communication program which copies lines from your terminal to that of another user, much like an instant messenger service. When first called, talk contacts the talk daemon on the other user's machine, which sends the message below.

Message from TalkDaemon@his_machine...
talk: connection requested by your_name@your_machine.
talk: respond with: talk your_name@your_machine

to that user. At this point, he then replies by typing

talk your_name@your_machine

It doesn't matter from which machine the recipient replies, as long as his login name is the same. Once communication is established, the two parties may type simultaneously; their output will appear in separate windows. Typing control-L (^L) will cause the screen to be reprinted. The erase, kill line, and word erase characters (normally ^H, ^U, and ^W, respectively) will behave normally. To exit, just type the interrupt character (normally ^C); talk then moves the cursor to the bottom of the screen and restores the terminal to its previous state.

talk supports scrollback; use esc-p and esc-n to scroll your window, and ctrl-p and ctrl-n to scroll the other window.

If you do not want to receive talk requests, you may block them using the mesg command. By default, talk requests are normally not blocked. Certain commands, in particular nroff, pine, and pr, may block messages temporarily to preserve their own output.

talk person [ttyname]

Options

talk hope