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.IX Title "dpkg-vendor 1"
.TH dpkg-vendor 1 2026-03-06 1.23.7-dirty "dpkg suite"
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.nh
.SH NAME
dpkg\-vendor \- queries information about distribution vendors
.SH SYNOPSIS
.IX Header "SYNOPSIS"
\&\fBdpkg\-vendor\fR
[\fIoption\fR...] \fIcommand\fR
.SH DESCRIPTION
.IX Header "DESCRIPTION"
\&\fBdpkg\-vendor\fR is a tool to query information about vendors listed in
\&\fB/etc/dpkg/origins\fR.
\&\fB/etc/dpkg/origins/default\fR contains
information about the current vendor.
.PP
The origin files provide metadata about specific vendors,
such as their URL or where to file bug reports,
and are usually used both to determine the behavior of tools and
resulting contents during package builds targeting a specific vendor,
and to describe the provenance of packages.
.PP
Packages can explicitly declare their vendor by including an \fBOrigin\fR field,
otherwise the vendor for a package without such field is assumed to be the
one pointed to by the \fIdefault\fR origin symbolic link.
.PP
The \fIdefault\fR symbolic link is also used to denote the origin of
the current installation managed by \fBdpkg\fR,
be that a full distribution or an overlay on top of an existing base
system that contains either no packaging system or a native one.
.PP
This program was introduced in dpkg 1.15.1.
.SH COMMANDS
.IX Header "COMMANDS"
.IP "\fB\-\-is\fR \fIvendor\fR" 4
.IX Item "--is vendor"
Exits with \fB0\fR if the current vendor is \fIvendor\fR.
Otherwise exits
with \fB1\fR.
.IP "\fB\-\-derives\-from\fR \fIvendor\fR" 4
.IX Item "--derives-from vendor"
Exits with \fB0\fR if the current vendor distribution is a derivative of
\&\fIvendor\fR, otherwise exits with \fB1\fR.
It uses the \fBParent\fR field to browse all ancestors of the current vendor.
.IP "\fB\-\-query\fR \fIfield\fR" 4
.IX Item "--query field"
Print on standard output the value of the vendor\-specific \fIfield\fR for
the current vendor.
.IP \fB\-\-help\fR 4
.IX Item "--help"
Show the usage message and exit.
.IP \fB\-\-version\fR 4
.IX Item "--version"
Show the version and exit.
.SH OPTIONS
.IX Header "OPTIONS"
.IP "\fB\-\-vendor\fR \fIvendor\fR" 4
.IX Item "--vendor vendor"
Assumes the current vendor is \fIvendor\fR instead of discovering it
with the \fBDEB_VENDOR\fR environment variable or
\&\fB/etc/dpkg/origins/default\fR.
.SH ENVIRONMENT
.IX Header "ENVIRONMENT"
.IP \fBDEB_VENDOR\fR 4
.IX Item "DEB_VENDOR"
This setting defines the current vendor.
If not set, it will discover the
current vendor by reading \fB/etc/dpkg/origins/default\fR.
.IP \fBDPKG_COLORS\fR 4
.IX Item "DPKG_COLORS"
Sets the color mode (since dpkg 1.18.5).
The currently accepted values are: \fBauto\fR (default), \fBalways\fR and
\&\fBnever\fR.
.IP \fBDPKG_NLS\fR 4
.IX Item "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: \fB0\fR and \fB1\fR (default).
.SH FILES
.IX Header "FILES"
.SS "Packaging support"
.IX Subsection "Packaging support"
.IP \fB/usr/share/dpkg/vendor.mk\fR 4
.IX Item "/usr/share/dpkg/vendor.mk"
Makefile snippet that sets the current vendor and its parent into variables,
and provides make macros to check for derivatives (since dpkg 1.16.1).
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBdeb\-origin\fR\|(5).