This is the command deallocvt that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
deallocvt - deallocate unused virtual consoles
deallocvt [N ...]
The command deallocvt deallocates kernel memory and data structures for all unused virtual
consoles. If one or more arguments N ... are given, only the corresponding consoles
/dev/ttyN are deallocated.
A virtual console is unused if it is not the foreground console, and no process has it
open for reading or writing, and no text has been selected on its screen.
Use deallocvt online using onworks.net services