chvt - change foreground virtual terminal
The command chvt N makes /dev/ttyN the foreground terminal. The
corresponding screen is created if it did not exist yet. To get rid of
unused VTs, use deallocvt(1).
The keymap action ‘Console_N’ (usually bound to key combination
(Ctrl-)LeftAlt-FN, with N in the range 1-12, and to RightAlt-FN-12 with
N in the range 13-24) also allows to switch to another VT, but really
switches only if it is already allocated. This prevents allocating new
VTs with a misplaced keystroke.