V8/usr/man/man8/rc.8

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.TH RC 8
.SH NAME
rc \- boot script
.SH SYNOPSIS
.B /etc/rc
.SH DESCRIPTION
.I Rc
is the command script
invoked by
.IR init (8)
to control reboots.
During an automatic reboot,
.I rc
is invoked with the argument
.IR autoboot ;
typically this invokes
.I /etc/fsck \-p
to repair minor filesystem inconsistencies.
If
.I rc
exits with an unsuccessful status,
.I init
stops in single-user mode;
otherwise it proceeds to multi-user.
.PP
When the system enters multi-user mode,
either during an auto-reboot
or after the single-user shell terminates,
.I rc
is invoked without arguments.
This usually causes it to
mount filesystems,
start daemons,
clear
.IR /tmp ,
and perform other housekeeping.
If this call to
.I rc
exits unsuccessfully,
.I init
reverts to single-user mode.
.SH SEE ALSO
init(8), reboot(8)