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    Command:

    dpkg-trigger

    
    
    

    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 situ-
           ations  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).
    
           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-trig-
                  ger.
    
           -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 processing of this trigger; the interested pack-
                  age(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

    
    
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