# ctrlaltdel - set the function of the Ctrl-Alt-Del combination - man(8) - [phpMan]

[_CTRLALTDEL_(8)](https://www.chedong.com/phpMan.php/man/CTRLALTDEL/8/markdown)                           System Administration                          [_CTRLALTDEL_(8)](https://www.chedong.com/phpMan.php/man/CTRLALTDEL/8/markdown)

## NAME
       ctrlaltdel - set the function of the Ctrl-Alt-Del combination

## SYNOPSIS
       **ctrlaltdel hard**|**soft**

## DESCRIPTION
       Based on examination of the _linux/kernel/reboot.c_ code, it is clear that there are two
       supported functions that the <Ctrl-Alt-Del> sequence can perform.

### hard
           Immediately reboot the computer without calling [**sync**(2)](https://www.chedong.com/phpMan.php/man/sync/2/markdown) and without any other
           preparation. This is the default.

### soft
           Make the kernel send the **SIGINT **(interrupt) signal to the **init **process (this is always
           the process with PID 1). If this option is used, the [**init**(8)](https://www.chedong.com/phpMan.php/man/init/8/markdown) program must support this
           feature. Since there are now several [**init**(8)](https://www.chedong.com/phpMan.php/man/init/8/markdown) programs in the Linux community, please
           consult the documentation for the version that you are currently using.

       When the command is run without any argument, it will display the current setting.

       The function of **ctrlaltdel **is usually set in the _/etc/rc.local_ file.

## OPTIONS
### -h --help
           Display help text and exit.

### -V --version
           Print version and exit.

## FILES
       _/etc/rc.local_

## AUTHORS
       Peter Orbaek <<poe@daimi.aau.dk>>

## SEE ALSO
       [**init**(8)](https://www.chedong.com/phpMan.php/man/init/8/markdown), [**systemd**(1)](https://www.chedong.com/phpMan.php/man/systemd/1/markdown)

## REPORTING BUGS
       For bug reports, use the issue tracker at <https://github.com/util-linux/util-linux/issues>.

## AVAILABILITY
       The **ctrlaltdel **command is part of the util-linux package which can be downloaded from Linux
       Kernel Archive <<https://www.kernel.org/pub/linux/utils/util-linux/>>.

util-linux 2.39.3                            2023-10-23                                [_CTRLALTDEL_(8)](https://www.chedong.com/phpMan.php/man/CTRLALTDEL/8/markdown)