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Linux ctrlaltdel Command - Ctrl+Alt+Del key combination

ctrlaltdel command: Set the function of pressing Ctrl+Alt+Del key combination.

ctrlaltdel Command Function

Use the ctrlaltdel command to set the function of pressing the Ctrl+Alt+Del key combination.

ctrlaltdel has two supported functions: hard and soft.

  • hard: When the key combination "Ctrl+Alt+Del" is pressed, the restart of the operating system is performed immediately, without first invoking the sync system call and other standard shutdown operations.
  • soft: soft is a soft reset, which sends a SIGINT (interrupt) signal to the init process. If you use soft, the init program must support this function. When the key combination "Ctrl+Alt+Del" is pressed, the SIGINT (interrupt) signal is sent to the init process first. The init process handles the shutdown.

ctrlaltdel Command Syntax

ctrlaltdel [hard|soft]

ctrlaltdel command Demo

Set the function of pressing Ctrl+Alt+Del key combination to HARD. 

[root@deepinout ～]# ctrlaltdel hard
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