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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 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/db/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).
	      If  the  interested  package has declared	a "noawait" directive,
	      then this	option will not	be effective.	It  is	currently  the
	      default behavior.

       --no-act
	      Just test, do not	actually change	anything.

EXIT STATUS
       0      The  requested action was	successfully performed.	 Or a check or
	      assertion	command	returned true.

       1      A	check or assertion command returned false.

       2      Fatal or unrecoverable error due to invalid command-line	usage,
	      or  interactions	with  the  system,  such  as  accesses	to the
	      database,	memory allocations, etc.

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

       DPKG_COLORS
	      Sets the color mode (since dpkg 1.18.5).	The currently accepted
	      values are: auto (default), always and never.

SEE ALSO
       dpkg(1),	deb-triggers(5), /usr/share/doc/dpkg-dev/triggers.txt.gz.

1.19.8				  2022-05-24		       dpkg-trigger(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=dpkg-trigger&sektion=1&manpath=FreeBSD+Ports+15.0>

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