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Linux 2.6 - man page for dpkg-trigger (linux section 1)

dpkg-trigger(1) 			    dpkg suite				  dpkg-trigger(1)

NAME
       dpkg-trigger - a package trigger utility

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 insuffi-
       ciently 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).

       Unrecognised 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.

       -h, --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  pro-
	      cessing  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.

       --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.

Debian Project				    2009-03-15				  dpkg-trigger(1)


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