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

6       dpkg-trigger - a package trigger utility
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SYNOPSIS

9       dpkg-trigger [option...] trigger-name
10       dpkg-trigger [option...] command
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DESCRIPTION

13       dpkg-trigger  is  a tool to explicitely activate triggers and check for
14       its support on the running dpkg.
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16       This can be used by maintainer scripts in complex and conditional situ‐
17       ations  where  the  file triggers, or the declarative activate triggers
18       control file directive, are insufficiently rich. It can  also  be  used
19       for  testing  and  by system administrators (but note that the triggers
20       won't actually be run by dpkg-trigger).
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22       Unrecognised trigger name syntaxes are an error for dpkg-trigger.
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COMMANDS

25       --check-supported
26              Check if the running dpkg supports triggers (usually called from
27              a  postinst). Will exit 0 if a triggers-capable dpkg has run, or
28              1 with an error message to stderr if not. Normally, however,  it
29              is  better  just to activate the desired trigger with dpkg-trig‐
30              ger.
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32       -h, --help
33              Show the usage message and exit.
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35       --version
36              Show the version and exit.
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38       --license, --licence
39              Show the copyright licensing terms and exit.
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OPTIONS

42       --admindir=dir
43              Change the location of the dpkg database. The  default  location
44              is /var/lib/dpkg.
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46       --by-package=package
47              Override  trigger  awaiter  (normally  set  by  dpkg through the
48              DPKG_MAINTSCRIPT_PACKAGE environment variable of the  maintainer
49              scripts,  naming  the  package  to which the script belongs, and
50              this will be used by default).
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52       --no-await
53              This option arranges that the calling package T  (if  any)  need
54              not  await  the processing of this trigger; the interested pack‐
55              age(s) I, will not be added to T's  trigger  processing  awaited
56              list and T's status is unchanged.  T may be considered installed
57              even though I may not yet have processed the trigger.
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59       --no-act
60              Just test, do not actually change anything.
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SEE ALSO

63       dpkg(1), deb-triggers(5), /usr/share/doc/dpkg/triggers.txt.gz.
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68Debian Project                    2009-03-15                   dpkg-trigger(1)
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