CTRLALTDEL(8) System Administration CTRLALTDEL(8)
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) 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) 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 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
Display version and exit.
FILES
/etc/rc.local
AUTHORS
Peter Orbaek <poe@daimi.aau.dk>
SEE ALSO
init(8), systemd(1)
REPORTING BUGS
For bug reports, use the issue tracker
<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 2.41 2025-02-26 CTRLALTDEL(8)
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