Open a terminal. Set the level of tty redirection.

Table 3.52. Tty usage

tty <DEVICE_PATH>    (Where <DEVICE_PATH> is a valid terminal on the operating system. Just tries to open the terminal
tty <TTY_LEVEL>    (Set the level of tty redirection, where <TTY_LEVEL> is a valid level of input/output to use)

Where level is

  • 0 = Default input/output

  • 1 = Terminal output of results of transformation, tracing and walking     (Default state when tty device has been opened. Not fully implemented yet.)

  • 2 = Full redirection to terminal    (Not implemented yet.)

  • All other integer values are assumed to mean level 0