1 TELL
The TELL program can be used to send a message to another user
who is currently logged onto the system. The format of the command is :

   $ TELL [nodename::]username "message"

where the [nodename::] portion is optional, and if present specifies
the node on the local network to which the message should be directed, and
where username is either a username currently logged onto the system 
or the string MYSELF (which will send a message to your terminal). The
trailing double quote mark is optional. The leading quote mark is necessary
to prevent the system from interpreting any single quote marks in the
message as symbols and attempting to translate the following text.

If necessary, continuation lines may be used by adding the continuation
character to the end of a line ("-"). For best results, each line of a
multi-line command should be enclosed in double quotes, except for the
continuation character, which should be outside the quotes.
