Linux command
deallocvt 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Deallocate all unused virtual terminals
sudo deallocvt
Deallocate a specific virtual terminal
sudo deallocvt [7]
Deallocate a range of virtual terminals
sudo deallocvt [7] [8] [9]
Target a specific console device
sudo deallocvt -C [/dev/tty1]
Show version information
deallocvt -V
说明
deallocvt deallocates kernel memory and data structures for unused virtual consoles. A virtual console is considered unused when it is not the active console and no process or text selection is referring to it. When invoked without arguments, it deallocates all unused virtual terminals. When given specific terminal numbers (corresponding to `/dev/ttyN`), it deallocates only those. A terminal cannot be deallocated if it is the current terminal or if it has active processes.
参数
- -C, --console=_DEV_
- Operate on the specified console device (e.g. `/dev/tty1`).
- -V, --version
- Print version information and exit.
- -h, --help
- Print usage information and exit.
FAQ
What is the deallocvt command used for?
deallocvt deallocates kernel memory and data structures for unused virtual consoles. A virtual console is considered unused when it is not the active console and no process or text selection is referring to it. When invoked without arguments, it deallocates all unused virtual terminals. When given specific terminal numbers (corresponding to `/dev/ttyN`), it deallocates only those. A terminal cannot be deallocated if it is the current terminal or if it has active processes.
How do I run a basic deallocvt example?
Run `sudo deallocvt` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -C, --console=_DEV_ do in deallocvt?
Operate on the specified console device (e.g. `/dev/tty1`).