If arguments are given, outputs the title of each arguments, otherwise outputs the title of the active window and continue to output it as it changes if the snoop mode is on.
xtitle [-h|-v|-s|-e|-i|-f FORMAT|-t NUMBER] [WID ...]
-h— Print the synopsis to standard output and exit.
-v— Print the version to standard output and exit.
-s— Activate the snoop mode.
-e— Escape the following characters: ', " and \.
-i— Try to retrieve the title from the
-f FORMAT— Use the given
printf-style format. The only supported sequences are
%u(for window id) and
-t NUMBER— Truncate the title after |NUMBER| characters starting at the first (or the last if NUMBER is negative) character.