ctrlaltdel - set the function of the Ctrl-Alt-Del combination
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.
- Immediately reboot the computer without calling
sync(2) and without any other preparation. This is the
- 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) program must support this feature.
Since there are now several init(8) programs in the Linux
community, please consult the documentation for the version that you are
When the command is run without any argument, it will display the current
The function of ctrlaltdel
is usually set in the /etc/rc.local
- -V, --version
- Display version information and exit.
- -h, --help
- Display help text and exit.
The ctrlaltdel command is part of the util-linux package and is available from