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# Linux vlock Command [ Linux Command Manual](#) The Linux vlock command is used to lock the virtual terminal. Executing the vlock (virtual console lock) command locks the virtual terminal, preventing others from using it. ### Syntax vlock **Parameter Description**: * -a or --all: Lock all terminal sessions. If you use this parameter in a full-screen terminal, it will also disable the keyboard function for switching terminals. * -c or --current: Lock the current terminal session. This is the default. * -h or --help: Online help. * -v or --version: Display version information. ### Example Lock the virtual terminal # vlock [ Linux Command Manual](#)