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pkg_delete(1)		  BSD General Commands Manual		 pkg_delete(1)

NAME
     pkg_delete	-- a utility for deleting previously installed software	pack-
     age distributions

SYNOPSIS
     pkg_delete	[-vDdnf] [-p prefix] pkg-name ...

DESCRIPTION
     The pkg_delete command is used to delete packages that have been previ-
     ously installed with the pkg_add(1) command.

WARNING
     Since the pkg_delete command may execute scripts or programs provided by
     a package file, your system may be	susceptible to ``trojan	horses'' or
     other subtle attacks from miscreants who create dangerous package files.

     You are advised to	verify the competence and identity of those who	pro-
     vide installable package files.  For extra	protection, examine all	the
     package control files in the package record directory (
     /var/db/pkg/_pkg-name_/ ).	Pay particular attention to any	+INSTALL, +DE-
     INSTALL, +REQUIRE or +MTREE_DIRS files, and inspect the +CONTENTS file
     for @cwd, @mode (check for	setuid), @dirrm, @exec,	and @unexec direc-
     tives, and/or use the pkg_info(1) command to examine the installed	pack-
     age control files.

OPTIONS
     The following command line	options	are supported:

     pkg-name ...
	     The named packages	are deinstalled.

     -v	     Turn on verbose output.

     -D	     If	a deinstallation script	exists for a given package, do not ex-
	     ecute it.

     -n	     Don't actually deinstall a	package, just report the steps that
	     would be taken if it were.

     -p	prefix
	     Set prefix	as the directory in which to delete files from any in-
	     stalled packages which do not explicitly set theirs.  For most
	     packages, the prefix will be set automatically to the installed
	     location by pkg_add(1).

     -d	     Remove empty directories created by file cleanup.	By default,
	     only files/directories explicitly listed in a package's contents
	     (either as	normal files/directories or with the @dirrm directive)
	     will be removed at	deinstallation time.  This option tells
	     pkg_delete	to also	remove any directories that were emptied as a
	     result of removing	the package.

     -f	     Force removal of the package, even	if a dependency	is recorded or
	     the deinstall or require script fails.

TECHNICAL DETAILS
     Pkg_delete	does pretty much what it says.	It examines installed package
     records in	/var/db/pkg/_pkg-name_,	deletes	the package contents, and fi-
     nally removes the package records.

     If	a package is required by other installed packages, pkg_delete will
     list those	dependent packages and refuse to delete	the package (unless
     the -f option is given).

     If	the package contains a require file (see pkg_create(1) ), then this is
     executed first as
	   require _pkg-name_ DEINSTALL
     (where pkg-name is	the name of the	package	in question and	DEINSTALL is a
     keyword denoting that this	is a deinstallation) to	see whether or not de-
     installation should continue.  A non-zero exit status means no, unless
     the -f option is specified.

     If	a deinstall script exists for the package, it is executed before any
     files are removed.	 It is this script's responsibility to clean up	any
     additional	messy details around the package's installation, since all
     pkg_delete	knows how to do	is delete the files created in the original
     distribution.  The	deinstall script is called as:
	   deinstall _pkg-name_	DEINSTALL
     Passing the keyword DEINSTALL lets	you potentially	write only one pro-
     gram/script that handles all aspects of installation and deletion.

     All scripts are called with the environment variable PKG_PREFIX set to
     the installation prefix (see the -p option	above).	 This allows a package
     author to write a script that reliably performs some action on the	direc-
     tory where	the package is installed, even if the user might have changed
     it	by specifying the -p option when running pkg_delete or pkg_add.

SEE ALSO
     pkg_add(1), pkg_create(1),	pkg_info(1), mktemp(3),	mtree(8).

AUTHORS
     Jordan Hubbard
	     most of the work
     John Kohl
	     refined it	for NetBSD

BUGS
     Sure to be	some.

FreeBSD	2.0		       November	25, 1994		   FreeBSD 2.0

NAME | SYNOPSIS | DESCRIPTION | WARNING | OPTIONS | TECHNICAL DETAILS | SEE ALSO | AUTHORS | BUGS

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