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APT-RDEPENDS(8)                                                APT-RDEPENDS(8)



NAME
       apt-rdepends - performs recursive dependency listings similar to
       apt-cache

SYNOPSIS
       apt-rdepends [options] [pkgs ...]

DESCRIPTION
       apt-rdepends searches through the APT cache to find package dependen-
       cies.  apt-rdepends knows how to emulate the result of calling apt-
       cache with both depends and dotty options.

       By default, apt-rdepends shows a listing of each dependency a package
       has.  It will also look at each of these fulfilling packages, and
       recursively lists their dependecies.

OPTIONS
       -b, --build-depends
               Show build dependencies instead of normal package dependencies.

       -d, --dotty
               dotty takes a list of packages on the command line and gener-
               ates output suitable for use by springgraph.  The result will
               be a set of nodes and edges representing the relationships
               between the packages. By default the given packages will trace
               out all dependent packages which can produce a very large
               graph.

               Blue lines are pre-depends, green lines are conflicts, yellow
               lines are suggests, orange lines are recommends, red lines are
               replaces, and black lines are depends.

               Caution, dotty cannot graph larger sets of packages.

       -p, --print-state
               Shows the state of each dependency after each package version.
               See --state-follow and --state-show for why this is useful.

       -r, --reverse
               Shows the listings of each package that depends on a package.
               Furthermore, it will look at these dependent packages, and find
               their dependers.

       -f, --follow=DEPENDS
               A comma-separated list of DEPENDS types to follow recursively.
               By default, it only follows the Depends type.

               The possible values for DEPENDS are: Depends, PreDepends, Sug-
               gests, Recommends, Conflicts, Replaces, and Obsoletes.

               In --build-depends mode, the possible values are: Build-
               Depends, Build-Depends-Indep, Build-Conflicts, Build-Conflicts-
               Indep.

       -s, --show=DEPENDS
               A comma-separated list of DEPENDS types to show, when display-
               ing a listing.  By default, it only shows the Depends type.

       --state-follow=STATES
       --state-show=STATES
               These two options are similar to --follow and --show.  They
               both deal with the current state of a package.  By default, the
               value of STATES is Unknown, NotInstalled, UnPacked, HalfConfig-
               ured, HalfInstalled, ConfigFiles, and Installed.

               These options are useful, if you only want to only look at the
               dependencies between the Installed packages on your system.
               You can then call:

                   apt-rdepends --state-follow=Installed libfoo

               Or if you want to only show the packages installed on your sys-
               tem:

                   apt-rdepends --state-follow=Installed
                   --state-show=Installed libfoo

       pkgs    The list of packages on which to discover dependencies.

SEE ALSO
       apt.conf(5), sources.list(5), apt-cache(8), AptPkg(3)

BUGS
       apt-rdepends does not emulate apt-cache perfectly.  It does not display
       information about virtual packages, nor does it know about virtual
       packages when it is in reverse dependency mode.

       apt-rdepends also does not know how to stop after a certain depth has
       been reached.

       apt-rdepends cannot do reverse build-dependencies.  This is really dif-
       ficult, since it would have to load the whole cache into memory before
       discovering which packages depend on others to build.

       apt-rdepends exists.  This functionality should really reside in apt-
       cache itself.

AUTHOR
       apt-rdepends was written by Simon Law <sfllawATdebian.org>



1.2.0                             2004-01-23                   APT-RDEPENDS(8)