1CTRLALTDEL(8)                System Administration               CTRLALTDEL(8)
2
3
4

NAME

6       ctrlaltdel - set the function of the Ctrl-Alt-Del combination
7

SYNOPSIS

9       ctrlaltdel hard|soft
10

DESCRIPTION

12       Based  on  examination  of  the linux/kernel/reboot.c code, it is clear
13       that there are two supported functions that the  Ctrl-Alt-Del  sequence
14       can perform.
15
16       hard   Immediately  reboot  the  computer  without  calling sync(2) and
17              without any other preparation.  This is the default.
18
19       soft   Make the kernel send the SIGINT (interrupt) signal to  the  init
20              process (this is always the process with PID 1).  If this option
21              is used, the init(8) program must support this  feature.   Since
22              there  are  now several init(8) programs in the Linux community,
23              please consult the documentation for the version  that  you  are
24              currently using.
25
26       When  the command is run without any argument, it will display the cur‐
27       rent setting.
28
29       The function of ctrlaltdel is usually set in the /etc/rc.local file.
30

OPTIONS

32       -V, --version
33              Display version information and exit.
34
35       -h, --help
36              Display help text and exit.
37

FILES

39       /etc/rc.local
40

AUTHORS

42       Peter Orbaek ⟨poe@daimi.aau.dk⟩
43

SEE ALSO

45       init(8), systemd(1)
46

AVAILABILITY

48       The ctrlaltdel command is part of the util-linux package and is  avail‐
49       able  from Linux Kernel Archive ⟨https://www.kernel.org/pub/linux/utils
50       /util-linux/⟩.
51
52
53
54util-linux                       October 2015                    CTRLALTDEL(8)