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1.\" Copyright 1992, 1993 Rickard E. Faith (faith@cs.unc.edu)
2.\" May be distributed under the GNU General Public License
6e82b1f3 3.TH CTRLALTDEL 8 "October 2015" "util-linux" "System Administration"
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4.SH NAME
5ctrlaltdel \- set the function of the Ctrl-Alt-Del combination
6.SH SYNOPSIS
8cd1bc97 7.BR "ctrlaltdel hard" | soft
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8.SH DESCRIPTION
9Based on examination of the
6e82b1f3 10.I linux/kernel/reboot.c
6dbe3af9 11code, it is clear that there are two supported functions that the
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12Ctrl-Alt-Del sequence can perform.
13.TP
14.B hard
15Immediately reboot the computer without calling
8cd1bc97 16.BR sync (2)
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17and without any other preparation. This is the default.
18.TP
19.B soft
c3cd6751 20Make the kernel send the SIGINT (interrupt) signal to the
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21.B init
22process (this is always the process with PID 1). If this option is used,
23the
8cd1bc97 24.BR init (8)
6dbe3af9 25program must support this feature. Since there are now several
8cd1bc97 26.BR init (8)
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27programs in the Linux community, please consult the documentation for the
28version that you are currently using.
1222d818 29.PP
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BS
30When the command is run without any argument, it will display the current
31setting.
82cac348 32.PP
c3cd6751 33The function of
6dbe3af9 34.B ctrlaltdel
c3cd6751 35is usually set in the
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36.I /etc/rc.local
37file.
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38.SH OPTIONS
39.TP
40\fB\-V\fR, \fB\-\-version\fR
b4362b6f 41Display version information and exit.
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42.TP
43\fB\-h\fR, \fB\-\-help\fR
b4362b6f 44Display help text and exit.
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45.SH FILES
46.I /etc/rc.local
5a829806 47.SH SEE ALSO
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48.BR init (8),
49.BR systemd (1)
6dbe3af9 50.SH AUTHOR
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51.UR poe@daimi.aau.dk
52Peter Orbaek
53.UE
86d62711 54.SH AVAILABILITY
601d12fb 55The ctrlaltdel command is part of the util-linux package and is available from
d673b74e 56.UR https://\:www.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
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57Linux Kernel Archive
58.UE .