GNU/Linux Command – DEALLOCVT

deallocvt — Deallocate Unused Virtual Consoles.

Summary:

The command deallocvt deallocates kernel memory and data structures for all *UNUSED* virtual consoles. When you do ‘openvt’, a new virtual console will be created on the next free terminal. After using that, We can deallocate it using the ‘deallocvt’ command.

Examples:
# openvt -s ls -- Run the 'ls' on next free VT (mostly on 7). # deallocvt -- Deallocate unused VT. Now switch to 7, you won't see any change on the screen. # deallocvt 7 -- Deallocate /dev/tty7, if it is unused.
Read: man deallocvt

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