ctrlaltdel — set the function of the Ctrl-Alt-Del combination
ctrlaltdel hard | soft
Based on examination of the linux/kernel/sys.c code, it is clear that
there are two supported functions that the Ctrl-Alt-Del
sequence can perform: a hard reset, which immediately
reboots the computer without calling sync (2) and without any other
preparation; and a soft reset, which sends 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.
ctrlaltdel
is usually used in the /etc/rc.local file.