Synopsis:
   echo [<anything>]

Description:
   This command prints its arguments back to the screen.  That's it.  It
   is useful for printing status messages from inside scripts, or inside
   hooks for redefining server messages.

   The ECHO command is also the only command (one of two, actually; see
   XECHO) that can write to the screen when DISPLAY is off. ECHO now
   has no length limitation, it can display any string within the confines
   of memory.

See Also:
   eval(5); set(4) display, input_aliases; xecho(5)

Other Notes:
   ECHO will not normally expand variables unless it is used inside an
   alias.  To force expansion, use EVAL or set INPUT_ALIASES on. This is
   not a bug, it is an intentional feature common to all commands.