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# dpkg manual page - dpkg-vendor(1)
#
# Copyright © 2009 Raphaël Hertzog <hertzog@debian.org>
#
# This is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
=encoding utf8
=head1 NAME
dpkg-vendor - queries information about distribution vendors
=head1 SYNOPSIS
B<dpkg-vendor>
[I<option>...] I<command>
=head1 DESCRIPTION
B<dpkg-vendor> is a tool to query information about vendors listed in
B<%PKGCONFDIR%/origins>.
B<%PKGCONFDIR%/origins/default> contains
information about the current vendor.
This program was introduced in dpkg 1.15.1.
=head1 COMMANDS
=over
=item B<--is> I<vendor>
Exits with B<0> if the current vendor is I<vendor>.
Otherwise exits
with B<1>.
=item B<--derives-from> I<vendor>
Exits with B<0> if the current vendor distribution is a derivative of
I<vendor>, otherwise exits with B<1>.
It uses the B<Parent> field to browse all ancestors of the current vendor.
=item B<--query> I<field>
Print on standard output the value of the vendor-specific I<field> for
the current vendor.
=item B<--help>
Show the usage message and exit.
=item B<--version>
Show the version and exit.
=back
=head1 OPTIONS
=over
=item B<--vendor> I<vendor>
Assumes the current vendor is I<vendor> instead of discovering it
with the B<DEB_VENDOR> environment variable or
B<%PKGCONFDIR%/origins/default>.
=back
=head1 ENVIRONMENT
=over
=item B<DEB_VENDOR>
This setting defines the current vendor.
If not set, it will discover the
current vendor by reading B<%PKGCONFDIR%/origins/default>.
=item B<DPKG_COLORS>
Sets the color mode (since dpkg 1.18.5).
The currently accepted values are: B<auto> (default), B<always> and
B<never>.
=item B<DPKG_NLS>
If set, it will be used to decide whether to activate Native Language Support,
also known as internationalization (or i18n) support (since dpkg 1.19.0).
The accepted values are: B<0> and B<1> (default).
=back
=head1 SEE ALSO
L<deb-origin(5)>.
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