ctrlaltdel(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | AUTHORS | SEE ALSO | AVAILABILITY | COLOPHON

CTRLALTDEL(8)             System Administration            CTRLALTDEL(8)

NAME         top

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

SYNOPSIS         top

       ctrlaltdel hard|soft

DESCRIPTION         top

       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         top

       -V, --version
              Display version information and exit.

       -h, --help
              Display help text and exit.

FILES         top

       /etc/rc.local

AUTHORS         top

       Peter Orbaek ⟨poe@daimi.aau.dk⟩

SEE ALSO         top

       init(8), systemd(1)

AVAILABILITY         top

       The ctrlaltdel command is part of the util-linux package and is
       available from Linux Kernel Archive 
       ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.

COLOPHON         top

       This page is part of the util-linux (a random collection of Linux
       utilities) project.  Information about the project can be found
       at ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.  If you
       have a bug report for this manual page, send it to
       util-linux@vger.kernel.org.  This page was obtained from the
       project's upstream Git repository
       ⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
       2020-12-18.  (At that time, the date of the most recent commit
       that was found in the repository was 2020-12-17.)  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

util-linux                    October 2015                 CTRLALTDEL(8)

Pages that refer to this page: reboot(2)