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Man Pages


Manual Reference Pages  -  DPKG-TRIGGER (1)

NAME

dpkg-trigger - a package trigger utility

CONTENTS

Synopsis
Description
Commands
Options
Environment
See Also

SYNOPSIS

dpkg-trigger [option...] trigger-name
dpkg-trigger [option...] command

DESCRIPTION

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.

COMMANDS

--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.

OPTIONS

--admindir=dir
  Change the location of the dpkg database. The default location is /var/lib/dpkg.
--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). It is currently the default behavior.
--no-act Just test, do not actually change anything.

ENVIRONMENT

DPKG_ADMINDIR
  If set and the --admindir option has not been specified, it will be used as the dpkg data directory.

SEE ALSO

dpkg(1), deb-triggers(5), /usr/share/doc/dpkg-dev/triggers.txt.gz.
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Debian Project DPKG-TRIGGER (1) 2011-08-14

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