Rename the current session. Note that for
screen -list the name
shows up with the process-id prepended. If the argument name is
omitted, the name of this session is displayed.
environment variable will still reflect the old name in pre-existing
shells. This may result in
confusion. Use of this command is generally
discouraged. Use the
-S command-line option if you want to
name a new session.The default is constructed from the tty and host names.