rc3(8)rc3(8)NAMErc3 - Run command script executed when entering a multiuser run level
SYNOPSISrc3DESCRIPTION
The rc3 script contains run commands that enable initialization of the
system to a multiuser state; run level 3. In addition to commands
listed within the script itself, rc3 contains instructions to run cer‐
tain commands found in the /sbin/rc3.d directory. The script defines
the conditions under which the commands execute; some commands run if
the system is booting, other commands execute if the system is changing
run levels.
By convention, files in the rc3.d directory begin with either the let‐
ter "S" or the letter "K" and are followed by a two-digit number and a
filename; for example:
S00inet S55inetd S70mount S65lpd
In general, the system starts commands that begin with the letter "S"
and stops commands that begin with the letter "K." Commands that begin
with the letter "K" run only when the system is changing run levels
from a higher to a lower level. Commands that begin with the letter
"S" run in all cases. The numbering of commands in the /sbin/rc3.d
directory is important since the numbers are sorted and the commands
are run in ascending order. Files in the /sbin/rc3.d directory are
normally links to files in the /etc/init.d directory.
An entry in the inittab file causes the system to execute the rc3 run
commands, for example:
s3:3:wait:/sbin/rc3 < /dev/console > /dev/console 2>&1
The following operations are typical of those that result from execut‐
ing the rc3 script and the commands located in the /sbin/rc3.d direc‐
tory. The operation depends on which state the system is entering or
exiting. Setting the time zone Checking the current run level Starting
network services and daemons Starting (or stopping) system services and
daemons Mounting file systems
Setting the TIMEZONE variable is one of the first operations completed
by the rc3 script. This action provides the default time zone for sub‐
sequent commands.
FILES
Specifies the command path Specifies the directory of commands that
correspond to the run level
SEE ALSO
Commands: init(8), rc0(8), rc2(8)rc3(8)