This displays information on the particular userid on the same computer. This makes a search of all the users currently logged in on the computer specified. This displays information on the particular userid of the specified computer. Finger searches may take a long time. When others want to talk to you, you will receive a message on your screen that tells you to respond with the same command as above.
Talk is a tool which uses machine-dependent protocol.
This means that it will be unable to connect to a talk daemon that uses different protocol. For example, if you're using a DEC host computer, you will probably not be able to contact someone using a Sun host computer via Talk . Hence, nothing happens after you receive the above message. Ytalk is an improvement to Talk , and is able to communicate across computers which use different protocols. Ytalk additionally enables you to talk to more than 1 person at the same time.