man rcconf Command

Man page for apt-get rcconf Command

Man Page for rcconf in Linux

Ubuntu Man Command : man rcconf

Man Rcconf  Command

This tutorial shows the man page for man rcconf in linux.

Open terminal with 'su' access and type the command as shown below:
man rcconf

Result of the Command Execution shown below:

RCCONF(8)                      Debian GNU/Linux                      RCCONF(8)



NAME
rcconf Debian Runlevel configuration tool

SYNOPSIS
rcconf [options]

DESCRIPTION
Rcconf allows you to control which services are started when the system
boots up or reboots. It displays a menu of all the services which
could be started at boot. The ones that are configured to do so are
marked and you can toggle individual services on and off.

Rcconf gets a list of services from /etc/init.d and looks in the
/etc/rc?.d directories to determine whether each service is on or off.
Rcconf detects ON state by existence of /etc/rc?.d/"S"NNname.

If the number(NN of /etc/rc?.d/[SK]NNname) is not 20(default), rcconf
saves the service name and the number in /var/lib/rcconf/services so as
to be able to restore the service to its original configuration.

If you purge rcconf package by 'dpkg purge' or 'aptitude purge' or
others, you may lose off state package due to deletion of
/var/lib/rcconf/services.

OPTIONS
help
Print out a usage message.

dialog
Use dialog command to display menu

whiptail
Use whiptail command to display menu

notermcheck
Do not set window size by terminal property.

on service[,service,...]
Set services to be on. This option enables rcconf in command line
mode and no select menu will be displayed.

off service[,service,...]
Set services to be off. This option enables rcconf in command
line mode and no select menu will be displayed.

list
List services which includes current status(on/off). This option
enables rcconf in command line mode and no select menu will be
displayed. Use expert option together if you want to list all
services. This result can be used as config_file of config.

config config_file
Set services on/off according to config_file. This option enables
rcconf in command line mode and no select menu will be displayed.
The format of this config file is "service_name on" or
"service_name off" in each line. Refer to the result of list.

expert
Show and select all services for experts. In default, rcconf
doesn't display system default services as a candidate such as
mountall.sh to hide unnecessary services for users(but very
important for system).

The list of which services are considered expert can be found at
the line @expertonly in /usr/sbin/rcconf.

now
For each service that had the links changed, call the
corresponding /etc/init.d/service name script using invoke rc.d,
so the package starts or stops immediately. If you do not use this
option, the changes will only take effect the next time you reboot
(or change runlevel).

verbose
Output verbose messages.

Guide File
Rcconf can display some description(Guide) for each services with Guide
File. Guide File is placed on /var/lib/rcconf/guide, and this Guide
File does not exist by default. If you want to use Guide, you need to
define guides for each services in this file.

If you run update rcconf guide before rcconf, rcconf can use default
guides derived from package description. Update rcconf guide generates
the file '/var/lib/rcconf/guide.default' from package description(only
uses first line of it) using apt cache. Rcconf refers Guides in
/var/lib/rcconf/guide before /var/lib/rcconf/guide.default.

If you install some packages after executed update rcconf guide, you
need to re create this file using update rcconf guide so as to refresh
guide.default that includes new guides for installed new services.

Updating /etc/rd?.c/ by the package(KNOWN PROBLEM)
Rcconf saves /etc/rc?.d/[SK]NNname conditions into
/var/lib/rcconf/services. This file is updated only when there exists
/etc/rc?.d/SNNname. It means that the condition is not saved if
/etc/rc?.d/SNNname doesn't exist for the package.

If the old version of the package creates both /etc/rc?.d/SNNname and
/etc/rc?.d/KNNname but the newer(updated) version of the package
creates only /etc/rc?.d/KNNname, some stupid condition occurs. That is,
rcconf displays this package as OFF state even as the updated package
doesn't have /etc/rc?.d/SNNname. That is because rcconf can't detect
disappearance of /etc/rc?.d/SNNname and previous /etc/rc?.d/SNNname
condition remains in /var/lib/rcconf/services for restore.

In that situation, remove the entry(corresponding package line) from
/var/lib/rcconf/services.

FILE
/var/lib/rcconf/services
The service number data file.

/var/lib/rcconf/lock
Lock file.

/var/lib/rcconf/guide.default
Guide File update rcconf guide generates.

/var/lib/rcconf/guide
Guide File user(Administrator) can define.

SEE ALSO
update rc.d(8)

update rcconf guide(8)

AUTHOR
Atsushi KAMOSHIDA



perl v5.10.0 2009 11 17 RCCONF(8)


Related Topics

Apt Get Commands