deborphan
finds packages that have no packages depending on them. The default operation
is to search only within the libs and oldlibs sections, to hunt down unused
libraries.
If it is invoked with an optional list of packages, only the dependencies on
those packages will be checked. The results are printed to stdout as if
the option --show-deps had been given. Searching for specific packages
will show the package, regardless of its priority. It is possible to specify
-, to read a list of packages from standard input.
-h, --help
Display a short help message and exit.
-v, --version
Display version information and exit.
-f, --status-file=FILE
Use FILE as the status file.
-d, --show-deps
Show a list of dependencies for packages that have them.
-P, --show-priority
Show the priority of the packages found.
-n, --nice-mode
Toggle nice-mode. If DEFAULT_NICE is defined at compiletime, this option
will turn off nice-mode. Nice-mode checks if there is a package `suggesting' or `recommending' the package. If one is found, the package will be marked as in use, or, when -s is used, print out the package suggesting the package as if it were depending on it.
-a, --all-packages
Check all the packages, instead of only those in the libs section. Best used (if at all used) in combination with --priority. This option implies --show-section, when compiled with ALL_PACKAGES_IMPLY_SECTION defined (default)
-s, --show-section
Show the sections the packages are in.
--no-show-section
Override showing sections when the default is to show them (see --all-packages).
-p, --priority=PRIORITY
Show only those packages with a priority equal to, or greater than PRIORITY. PRIORITY may be in the range of 1-5, or one of required, important, standard, optional, extra. Default value for PRIORITY is 2 (important).
-H, --force-hold
Ignore "hold" flags on packages. Normally packages with the "hold" flag set
will not be displayed.
-A, --add-keep PKG1...PKGn
Add packages to the list of packages which are never to be reported, regardless
of their state. You may specify '-' to use standard input. Note that
package names are case-sensitive.
-R, --del-keep PKG1...PKGn
Remove packages from the list of packages which are never to be reported.
You may specify '-' to use standard input. If there are no dependencies
for this package next time deborphan is invoked, it will be reported
again.
-L, --list-keep
Show the list of packages that are being kept back.
-k, --keep-file=FILE
Use FILE to store the list of kept-back packages. See also --add-keep.
--df-keep
Use debfoster's keepfile, regardless of the default setting. Can not be used
if deborphan was compiled without support for debfoster.
--no-df-keep
Do not use debfoster's keepfile.
--guess-*
See GUESSING below.
GUESSING
deborphan can try to guess what packages may not be of much use to you by
examining the package's name. It will pretend the package is in the
main/libs section, and report it as if it were a library. This
method is in no way perfect or even reliable, so beware when using this!
The following options are to be prefixed by --guess-:
perl
This option tries to find perl modules. It tries to match ^lib.*-perl$.
section
This option tries to find libraries that were accidentally placed in the
wrong section. It tries to match ^lib, but not if it ends
in one of: -dbg, -doc, -perl, or -dev.
dev
This option tries to find development packages, i.e. packages with names ending
in -dev.
debug
This option tries to find debugging libraries, i.e. packages with names ending
in -dbg.
all
Try all of the above.
only
Ignore the package's section completely, and just go for the name. This option
must be used in conjuction with one or more of the options listed above, or
deborphan will not display anything.
FILES
/var/lib/dpkg/status
Statuses of available packages. See the section
INFORMATION ABOUT PACKAGES
in dpkg's man-page for more information
/var/lib/deborphan/keep
A newline-seperated list of packages to keep. Package names are in no
particular order.