sys-utils/ctrlaltdel.8

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