<refsynopsisdiv>
<cmdsynopsis>
<command>apt-cache</>
- <arg><option>-hvs</></arg>
+ <arg><option>-hvsn</></arg>
<arg><option>-o=<replaceable/config string/</></arg>
<arg><option>-c=<replaceable/file/</></arg>
<group choice=req>
<arg>unmet</>
<arg>search <arg choice="plain"><replaceable>regex</replaceable></arg></arg>
<arg>show <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
- <arg>showpkg <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
<arg>depends <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
+ <arg>rdepends <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
<arg>pkgnames <arg choice="plain"><replaceable>prefix</replaceable></arg></arg>
<arg>dotty <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
<arg>policy <arg choice="plain" rep="repeat"><replaceable>pkgs</replaceable></arg></arg>
from the package metadata.
<para>
- Unless the <option/-h/, or <option/--help/ option is given one of the
+ Unless the <option/-h/, or <option/--help/ option is given, one of the
commands below must be present.
<VariableList>
- <VarListEntry><Term>add</Term>
+ <VarListEntry><Term>add <replaceable/file(s)/</Term>
<ListItem><Para>
<literal/add/ adds the named package index files to the package cache.
This is for debugging only.
<VarListEntry><Term>gencaches</Term>
<ListItem><Para>
- <literal/gencaches/ performs the same opration as
+ <literal/gencaches/ performs the same operation as
<command/apt-get check/. It builds the source and package caches from
the sources in &sources-list; and from <filename>/var/lib/dpkg/status</>.
</VarListEntry>
- <VarListEntry><Term>showpkg</Term>
+ <VarListEntry><Term>showpkg <replaceable/pkg(s)/</Term>
<ListItem><Para>
<literal/showpkg/ displays information about the packages listed on the
command line. Remaining arguments are package names. The available
Thus it may be seen that libreadline2, version 2.1-12, depends on libc5 and
ncurses3.0 which must be installed for libreadline2 to work.
In turn, libreadlineg2 and libreadline2-altdev depend on libreadline2. If
- libreadline2 is installed, libc5, ncurses3.0, and ldso must also be
+ libreadline2 is installed, libc5 and ncurses3.0 (and ldso) must also be
installed; libreadlineg2 and libreadline2-altdev do not have to be
installed. For the specific meaning of the remainder of the output it
is best to consult the apt source code.
<literal/Mixed virtual packages/ is the number of packages that either
provide a particular virtual package or have the virtual package name
as the package name. For instance, in the Debian GNU/Linux system,
- debconf is both an actual package, and provided by the debconf-tiny
+ "debconf" is both an actual package, and provided by the debconf-tiny
package.
</listitem>
<listitem><para>
<literal/Missing/ is the number of package names that were referenced in
a dependency but were not provided by any package. Missing packages may
- be in evidence if a full distribution is not accesssed, or if a package
+ be in evidence if a full distribution is not accessed, or if a package
(real or virtual) has been dropped from the distribution. Usually they
are referenced from Conflicts statements.
</listitem>
</itemizedlist>
</VarListEntry>
- <VarListEntry><Term>showsrc</Term>
+ <VarListEntry><Term>showsrc <replaceable/pkg(s)/</Term>
<ListItem><Para>
<literal/showsrc/ displays all the source package records that match
the given package names. All versions are shown, as well as all
records that declare the name to be a Binary.
- named packages.
</VarListEntry>
<VarListEntry><Term>dump</Term>
package cache.
</VarListEntry>
- <VarListEntry><Term>show</Term>
+ <VarListEntry><Term>show <replaceable/pkg(s)/</Term>
<ListItem><Para>
<literal/show/ performs a function similar to
- <command>dpkg --print-avail</>, it displays the package records for the
+ <command>dpkg --print-avail</>i; it displays the package records for the
named packages.
</VarListEntry>
- <VarListEntry><Term>search</Term>
+ <VarListEntry><Term>search <replaceable/regex [ regex ... ]/</Term>
<ListItem><Para>
- <literal/search/ performs a full text search on all available package
- files for the regex pattern given. It searchs the package names and the
- descriptions for an occurance of the string and prints out the package
- name and the short description. If <option/--full/ is given then output
- identical to <literal/show/ is produced for each matched package and
- if <option/--names-only/ is given then the long description is not
- searched, only the package name is.
+ <literal/search/ performs a full text search on all available package
+ lists for the regex pattern given. It searches the package names and the
+ descriptions for an occurrence of the regular expression and prints out
+ the package name and the short description. If <option/--full/ is given
+ then output identical to <literal/show/ is produced for each matched
+ package, and if <option/--names-only/ is given then the long description
+ is not searched, only the package name is.
<para>
- Seperate arguments can be used to specified multiple search patterns that
- are and'd together.
+ Separate arguments can be used to specify multiple search patterns that
+ are and'ed together.
</VarListEntry>
- <VarListEntry><Term>depends</Term>
+ <VarListEntry><Term>depends <replaceable/pkg(s)/</Term>
<ListItem><Para>
<literal/depends/ shows a listing of each dependency a package has
- and all the possible other packages that can fullfill that dependency.
+ and all the possible other packages that can fulfill that dependency.
+ </VarListEntry>
+
+ <VarListEntry><Term>rdepends <replaceable/pkg(s)/</Term>
+ <ListItem><Para>
+ <literal/rdepends/ shows a listing of each reverse dependency a package
+ has.
</VarListEntry>
- <VarListEntry><Term>pkgnames</Term>
+ <VarListEntry><Term>pkgnames <replaceable/[ prefix ]/</Term>
<ListItem><Para>
This command prints the name of each package in the system. The optional
argument is a prefix match to filter the name list. The output is suitable
for use in a shell tab complete function and the output is generated
- extremly quickly. This command is best used with the
+ extremely quickly. This command is best used with the
<option/--generate/ option.
</VarListEntry>
- <VarListEntry><Term>dotty</Term>
+ <VarListEntry><Term>dotty <replaceable/pkg(s)/</Term>
<ListItem><Para>
<literal/dotty/ takes a list of packages on the command line and
- gernerates output suitable for use by dotty from the
+ generates output suitable for use by dotty from the
<ulink url="http://www.research.att.com/sw/tools/graphviz/">GraphViz</>
package. 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.
- This can be turned off by setting the
- <literal>APT::Cache::GivenOnly</> option.
+ trace out all dependent packages; this can produce a very large graph.
+ To limit the output to only the packages listed on the command line,
+ set the <literal>APT::Cache::GivenOnly</> option.
<para>
- The resulting nodes will have several shapse, normal packages are boxes,
+ The resulting nodes will have several shapes; normal packages are boxes,
pure provides are triangles, mixed provides are diamonds,
- hexagons are missing packages. Orange boxes mean recursion was stopped
- [leaf packages], blue lines are prre-depends, green lines are conflicts.
+ missing packages are hexagons. Orange boxes mean recursion was stopped
+ [leaf packages], blue lines are pre-depends, green lines are conflicts.
<para>
Caution, dotty cannot graph larger sets of packages.
- <VarListEntry><Term>policy</Term>
+ <VarListEntry><Term>policy <replaceable/[ pkg(s) ]/</Term>
<ListItem><Para>
<literal/policy/ is ment to help debug issues relating to the
preferences file. With no arguments it will print out the
<VarListEntry><term><option/-q/</><term><option/--quiet/</>
<ListItem><Para>
Quiet; produces output suitable for logging, omitting progress indicators.
- More qs will produce more quite up to a maximum of 2. You can also use
- <option/-q=#/ to set the quiet level, overriding the configuration file.
+ More q's will produce more quietness up to a maximum of 2. You can also use
+ <option/-q=#/ to set the quietness level, overriding the configuration file.
Configuration Item: <literal/quiet/.
</VarListEntry>
<VarListEntry><term><option/-i/</><term><option/--important/</>
<ListItem><Para>
- Print only important deps; for use with unmet causes only Depends and
+ Print only important dependencies; for use with unmet. Causes only Depends and
Pre-Depends relations to be printed.
Configuration Item: <literal/APT::Cache::Important/.
</VarListEntry>
<VarListEntry><term><option/-a/</><term><option/--all-versions/</>
<ListItem><Para>
- Print full records for all available versions, this is only applicable to
- the show command.
+ Print full records for all available versions. This is the
+ default; to turn it off, use <option/--no-all-versions/.
+ If <option/--no-all-versions/ is specified, only the candidate version
+ will displayed (the one which would be selected for installation).
+ This option is only applicable to the <literal/show/ command.
Configuration Item: <literal/APT::Cache::AllVersions/.
</VarListEntry>
<VarListEntry><term><option/-g/</><term><option/--generate/</>
<ListItem><Para>
Perform automatic package cache regeneration, rather than use the cache
- as it is. This is the default, to turn it off use <option/--no-generate/.
+ as it is. This is the default; to turn it off, use <option/--no-generate/.
Configuration Item: <literal/APT::Cache::Generate/.
</VarListEntry>
- <VarListEntry><term><option/--names-only/</>
+ <VarListEntry><term><option/--names-only/</><term><option/-n/</>
<ListItem><Para>
- Only search on the package names, not the long description.
+ Only search on the package names, not the long descriptions.
Configuration Item: <literal/APT::Cache::NamesOnly/.
</VarListEntry>
<variablelist>
<VarListEntry><term><filename>/etc/apt/sources.list</></term>
<ListItem><Para>
- locations to fetch packages from.
+ Locations to fetch packages from.
Configuration Item: <literal/Dir::Etc::SourceList/.
</VarListEntry>
<VarListEntry><term><filename>&statedir;/lists/</></term>
<ListItem><Para>
- storage area for state information for each package resource specified in
+ Storage area for state information for each package resource specified in
&sources-list;
Configuration Item: <literal/Dir::State::Lists/.
</VarListEntry>
<VarListEntry><term><filename>&statedir;/lists/partial/</></term>
<ListItem><Para>
- storage area for state information in transit.
+ Storage area for state information in transit.
Configuration Item: <literal/Dir::State::Lists/ (implicit partial).
</VarListEntry>
</variablelist>