.\" Hey, Emacs!  This is an -*- nroff -*- source file.
.TH UPDATE\-RC.D 8 "6th June 1996" "Debian Project" "Debian/GNU Linux"
.SH NAME
update\-rc.d \- install and remove System-V style init script links
.SH SYNOPSIS
.B update\-rc.d
.I <basename>
\&remove
.LP
.B update-rc.d
.I <basename>
\&defaults
.RI [ " <codenumber> " | " <startcodenumber>" " " "<stopcodenumber> " ]
.LP
.B update-rc.d
.I <basename>
\&start | stop
.I <codenumber> <runlevel>
.RI [ " <runlevel> " [ " <runlevel> " [ ... ]]]
\&.
.SH DESCRIPTION
This manual page explains the Debian
.B "update-rc.d"
System-V init script link utility.  It should be used when installing and
removing init scripts on a Debian system.

.SH REMOVING SCRIPTS
When invoked with the
.I remove
option, update-rc.d removes the links to the script for the package
.IR basename .
The script must have been deleted already -
.B update-rc.d
checks for this.
It then removes all the (now-dangling) links to the script in
.RB "" /etc/rc[0123456].d/ .

.SH INSTALLING SCRIPTS
When run with either the
.RI "" defaults ", " start ", or " stop
options, update-rc.d makes links pointing to the script in
.RB "" /etc/init.d/ .
The script must be installed before update-rc.d is run.
The
.I <codenumber>
arguments specify the order in which the script will be executed.
When
.B init
changes runlevels it executes the scripts in the order of their
.I codenumber
from lowest to highest.

The
.I <runlevel>
arguments specify the runlevels that the script will be run in.
As many as seven runlevels (0-6) may be specified.
The last runlevel must be followed by a period.

When invoked with the
.I defaults
option the start runlevels are 
.B 2 3 4 5
and the stop runlevels are
.RB "" "0 1 2 3 4 5 6" .
If neither
.I <codenumber>
or
.I <startcodenumber>
and
.I <stopcodenumber>
are specified, then the stop and start codenumbers default to 20.

.SH FILES
.B /etc/init.d/
.bl
.B /etc/rc[0123456].d/

.SH "SEE ALSO"
.BR init (1),
.BR inittab (1),