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NAME | SYNOPSIS | DESCRIPTION | COMMANDS | OPTIONS | EXIT STATUS | ENVIRONMENT | SEE ALSO | COLOPHON |
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dpkg-trigger(1) dpkg suite dpkg-trigger(1)
dpkg-trigger - a package trigger utility
dpkg-trigger [option...] trigger-name
dpkg-trigger [option...] command
dpkg-trigger is a tool to explicitly activate triggers and check
for its support on the running dpkg.
This can be used by maintainer scripts in complex and conditional
situations where the file triggers, or the declarative activate
triggers control file directive, are insufficiently rich. It can
also be used for testing and by system administrators (but note
that the triggers won't actually be run by dpkg-trigger).
Unrecognized trigger name syntaxes are an error for dpkg-trigger.
This program was introduced in dpkg 1.14.17.
--check-supported
Check if the running dpkg supports triggers (usually called
from a postinst). Will exit 0 if a triggers-capable dpkg has
run, or 1 with an error message to stderr if not. Normally,
however, it is better just to activate the desired trigger
with dpkg-trigger.
-?, --help
Show the usage message and exit.
--version
Show the version and exit.
--admindir=dir
Change the location of the dpkg database. Defaults to
/usr/local/var/lib/dpkg if DPKG_ADMINDIR has not been set.
--root=directory
Set the root directory to directory, which sets the
administrative directory to «directory/usr/local/var/lib/dpkg»
(since dpkg 1.21.0).
--by-package=package
Override trigger awaiter (normally set by dpkg through the
DPKG_MAINTSCRIPT_PACKAGE environment variable of the
maintainer scripts, naming the package to which the script
belongs, and this will be used by default).
--no-await
This option arranges that the calling package T (if any) need
not await the processing of this trigger; the interested
package(s) I, will not be added to T's trigger processing
awaited list and T's status is unchanged. T may be considered
installed even though I may not yet have processed the
trigger.
--await
This option does the inverse of --no-await (since dpkg
1.17.21). If the interested package has declared a “noawait”
directive, then this option will not be effective. It is
currently the default behavior.
--no-act
Just test, do not actually change anything.
0 The requested action was successfully performed. Or a check
or assertion command returned true.
1 A check or assertion command returned false.
2 Fatal or unrecoverable error due to invalid command-line
usage, or interactions with the system, such as accesses to
the database, memory allocations, etc.
DPKG_ROOT
If set and the --root option has not been specified, it will
be used as the filesystem root directory (since dpkg 1.21.0).
DPKG_ADMINDIR
If set and the --admindir option has not been specified, it
will be used as the dpkg data directory.
DPKG_DEBUG
Sets the debug mask (since dpkg 1.21.10) from an octal value.
The currently accepted flags are described in the dpkg --debug
option, but not all these flags might have an effect on this
program.
DPKG_COLORS
Sets the color mode (since dpkg 1.18.5). The currently
accepted values are: auto (default), always and never.
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 1.22.7). The accepted values are: 0 and 1
(default).
dpkg(1), deb-triggers(5),
/usr/local/share/doc/dpkg/spec/triggers.txt.
This page is part of the dpkg (Debian Package Manager) project.
Information about the project can be found at
⟨https://wiki.debian.org/Teams/Dpkg/⟩. If you have a bug report
for this manual page, see
⟨http://bugs.debian.org/cgi-bin/pkgreport.cgi?src=dpkg⟩. This
page was obtained from the project's upstream Git repository ⟨git
clone https://git.dpkg.org/git/dpkg/dpkg.git⟩ on 2025-08-11. (At
that time, the date of the most recent commit that was found in
the repository was 2025-08-06.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
1.22.6-77-g86fe7 2024-03-10 dpkg-trigger(1)
Pages that refer to this page: deb-triggers(5)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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