debconf-communicate(1) [v7 man page]

DEBCONF-COMMUNICATE(1)						      Debconf						    DEBCONF-COMMUNICATE(1)

NAME

       debconf-communicate - communicate with debconf

SYNOPSIS

	echo commands | debconf-communicate [options] [package]

DESCRIPTION

       debconf-communicate allows you to communicate with debconf on the fly, from the command line. The package argument is the name of the
       package which you are pretending to be as you communicate with debconf, and it may be omitted if you are lazy. It reads commands in the
       form used by the debconf protocol from stdin. For documentation on the available commands and their usage, see the debconf specification.

       The commands are executed in sequence. The textual return code of each is printed out to standard output.

       The return value of this program is the numeric return code of the last executed command.

EXAMPLE

	echo get debconf/frontend | debconf-communicate

       Print out the value of the debconf/frontend question.

WARNING

       This program should never be used from a maintainer script of a package that uses debconf! It may however, be useful in debugging.

SEE ALSO

       debconf-loadtemplate(1)

AUTHOR

       Joey Hess <joeyh@debian.org>

								    2018-02-28						    DEBCONF-COMMUNICATE(1)

DEBCONF(1)							      Debconf								DEBCONF(1)

NAME

       debconf - run a debconf-using program

SYNOPSIS

	debconf [options] command [args]

DESCRIPTION

       Debconf is a configuration system for Debian packages. For a debconf overview and documentation for sysadmins, see debconf(7) (in the
       debconf-doc package).

       The debconf program runs a program under debconf's control, setting it up to talk with debconf on stdio. The program's output is expected
       to be debconf protocol commands, and it is expected to read result codes on stdin. See debconf-devel(7) for details about the debconf
       protocol.

       The command to be run under debconf must be specified in a way that will let your PATH find it.

       This command is not the usual way that debconf is used. It's more typical for debconf to be used via dpkg-preconfigure(8) or
       dpkg-reconfigure(8).

OPTIONS

       -opackage, --owner=package
	   Tell debconf what package the command it is running is a part of. This is necessary to get ownership of registered questions right, and
	   to support unregister and purge commands properly.

       -ftype, --frontend=type
	   Select the frontend to use.

       -pvalue, --priority=value
	   Specify the minimum priority of question that will be displayed.

       --terse
	   Enables terse output mode. This affects only some frontends.

EXAMPLES

       To debug a shell script that uses debconf, you might use:

	DEBCONF_DEBUG=developer debconf my-shell-prog

       Or, you might use this:

	debconf --frontend=readline sh -x my-shell-prog

SEE ALSO

       debconf-devel(7), debconf(7)

AUTHOR

       Joey Hess <joeyh@debian.org>

								    2018-02-28								DEBCONF(1)