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PKG_VERSION(1)		FreeBSD	General	Commands Manual		PKG_VERSION(1)

NAME
     pkg_version -- summarize installed	versions of packages

SYNOPSIS
     pkg_version [-cdhv] [-l limchar] [-L limchar] [-s string] [index]
     pkg_version [-t version1 version2]

DESCRIPTION
     The pkg_version command is	used to	produce	a report of non-base software
     packages installed	using the pkg_add(1) command.

     Each package's version number is checked against one of two sources to
     see if that package may require updating.	If the package contains	infor-
     mation about its origin in	the FreeBSD ports tree,	and a version number
     can be determined from the	port's Makefile, then the version number from
     the Makefile will be used to determine whether the	installed package is
     up-to-date	or requires updating.

     If	no origin for a	package	can be found, or if the	port's Makefile	cannot
     be	located, pkg_version will search for the package in the	ports collec-
     tion index	file (typically	/usr/ports/INDEX).  Any	matching version num-
     ber(s) there will be used to determine whether the	installed package is
     up-to-date	or requires updating.

     Generally,	using the version number from a	port's Makefile	will provide a
     more accurate result, since, unlike the index file, it provides an	unam-
     biguous current version number, even when multiple	versions of a port
     exist in the ports	collection.  Moreover, the ports collection index file
     is	only updated at	intervals, meaning that	it may not completely reflect
     the version numbers of the	software contained in the ports	collection.

     Each package name is printed, along with a	one-character status flag:

     =	     The installed version of the package is current.

     <	     The installed version of the package is older than	the current
	     version.

     >	     The installed version of the package is newer than	the current
	     version.  This situation can arise	with an	out-of-date index
	     file, or when testing new ports.

     ?	     The installed package does	not appear in the index.  This could
	     be	due to an out of date index or a package taken from a PR that
	     has not yet been committed.

     *	     There are multiple	versions of a particular software package
	     listed in the index file.	Examples from the FreeBSD ports	col-
	     lection are the Tcl toolkit or the	EMACS editor.

     !	     The installed package exists in the index but for some reason,
	     pkg_version was unable to compare the version number of the
	     installed package with the	corresponding entry in the index.

OPTIONS
     The pkg_version utility supports several command-line arguments:

     -c	     Enable commands output.  Commands output includes the commands
	     you should	type to	update your installed packages to the latest
	     versions in the ports system.  This feature does not constitute
	     an	automated packages updating system.  The output	of this	com-
	     mand must be edited, in order to avoid destroying dependencies
	     between installed packages.

     -d	     Enable debugging output.

     -h	     Print help	message.

     -l	     Limit the output to those packages	whose status flag matches the
	     character(s) in limchar.  More than one character can be speci-
	     fied in limchar.  Note that because some of the status flag char-
	     acters are	also special to	the shell, it is best to quote limchar
	     with single quotes.

     -L	     Limit the output to those packages	whose status flag doesn't
	     match limchar.  You may specify more than one character to	match
	     in	limchar.  Note that because some of the	status flag characters
	     are also special to the shell, it is best to quote	limchar	with
	     single quotes.

     -s	     Limit the output to those packages	whose names match a given
	     string.

     -t	     Test a pair of version number strings and exit.  The output con-
	     sists of one of the single	characters = (equal), <	(right-hand
	     number greater), or > (left-hand number greater) on standard out-
	     put.  This	flag is	mostly useful for scripts or for testing.

     -v	     Enable verbose output.  Verbose output includes some English-text
	     interpretations of	the version number comparisons,	as well	as the
	     version numbers compared for each package.	 Non-verbose output is
	     probably easier for programs or scripts to	parse.

     index   Specify the index to be used as a basis of	comparison.  This
	     index can be specified as a filename (in the local	filesystem) or
	     a URL.  Any URL understandable by fetch(1)	can be used here.  If
	     no	index file is specified	on the command line, /usr/ports/INDEX
	     is	used.

SEE ALSO
     fetch(1), pkg_add(1), pkg_create(1), pkg_delete(1), pkg_info(1)

FILES
     /usr/ports/INDEX  Default index file.

EXAMPLES
     The following is a	typical	invocation of the pkg_version command, which
     checks the	installed packages against the local ports index file:

	   % pkg_version -v

     The command below generates a report against the version numbers in the
     on-line ports collection:

	   % pkg_version
	   ftp://ftp.FreeBSD.org/pub/FreeBSD/branches/-current/ports/INDEX

     The command below generates a file	of commands to run to update the
     installed files.  These commands must not be run without suitable edit-
     ing.  They	should be treated as suggestions, and may need to be reordered
     to	account	for dependencies between installed packages, or	may need to be
     disregarded if multiple versions of an installed package can coexist.
     Blindly running the output	of this	command	may leave a system in an unus-
     able state.

	   % pkg_version -c > do_update

     The following command compares two	package	version	strings:

	   % pkg_version -t 1.5	1.5.1

AUTHORS
     Bruce A. Mah <bmah@FreeBSD.org>

CONTRIBUTORS
     Nik Clayton <nik@FreeBSD.org>, Dominic Mitchell <dom@palmerharvey.co.uk>,
     Mark Ovens	<marko@FreeBSD.org>, Doug Barton <DougB@gorean.org>, Akinori
     MUSHA <knu@FreeBSD.org>

BUGS
     The commands output feature is not	an automated ports/packages updating
     system.  It does not even attempt to handle dependencies between
     installed packages	correctly, and can produce incorrect results if	multi-
     ple versions of a package can coexist on a	system.

     Commands output assumes you install new software using the	ports system,
     rather than using pkg_add(1).

FreeBSD	10.1			 July 17, 1998			  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | FILES | EXAMPLES | AUTHORS | CONTRIBUTORS | BUGS

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