C.11 Frame Titles
An Emacs frame may or may not have a specified title. The frame
title, if specified, appears in window decorations and icons as the
name of the frame. If an Emacs frame has no specified title, the
default title has the form ‘invocation-name@machine’
(if there is only one frame) or the selected window's buffer name (if
there is more than one frame).
You can specify a title for the initial Emacs frame with a command
- ‘-T title’
- Specify title as the title for the initial Emacs frame.
The ‘--name’ option (see Resources) also specifies the title
for the initial Emacs frame.