mail \*- send mail to another user
without an argument searches for a file called
it if present, and asks if it should be saved. If the answer
argument works the same way, except
that the answer to the question is supplied by the argument.
When followed by the names of a letter
the letter is appended to
the letter is taken from the sender's standard input up to an EOT.
Each letter is preceded by the sender's name and a postmark.
a user name recognized by
is sent to the default working directory of that user,
or the path name of a directory,
in that directory is used.
When a user logs in he is informed of the presence
/etc/passwd to identify sender and locate persons
The mail should be prepended rather than
be destroyed when new mail is saved.