1deb-triggers(5)                 dpkg utilities                 deb-triggers(5)
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NAME

6       deb-triggers - package triggers
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SYNOPSIS

9       triggers
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DESCRIPTION

12       A  package  declares its relationship to some trigger(s) by including a
13       triggers file in its control archive (i.e. DEBIAN/triggers during pack‐
14       age creation).
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16       This  file  contains  directives,  one  per  line. Leading and trailing
17       whitespace and everything after  the  first  #  on  any  line  will  be
18       trimmed, and empty lines will be ignored.
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20       The trigger control directives currently supported are:
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22            interest trigger-name
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24            Specifies that the package is interested in the named trigger. All
25            triggers in which a package is interested  must  be  listed  using
26            this directive in the triggers control file.
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28            activate trigger-name
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30            Arranges  that  changes  to this package's state will activate the
31            specified trigger. The trigger will be activated at the  start  of
32            the following operations: unpack, configure, remove (including for
33            the benefit of a conflicting package), purge and deconfigure.
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35            If this package disappears during the unpacking of another package
36            the  trigger  will  be  activated  when the disappearance is noted
37            towards the end of the unpack. Trigger processing, and  transition
38            from  triggers-awaited  to  installed, does not cause activations.
39            In the case of unpack, triggers mentioned in both the old and  new
40            versions of the package will be activated.
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42       Unknown  directives are an error which will prevent installation of the
43       package.
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SEE ALSO

46       dpkg-trigger(1), dpkg(1), /usr/share/doc/dpkg/triggers.txt.gz.
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50Debian Project                    2009-03-15                   deb-triggers(5)
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