]> git.saurik.com Git - apt.git/blame - doc/apt-get.8.xml
Added (x) to some manpage referrings in apt-get manpage.
[apt.git] / doc / apt-get.8.xml
CommitLineData
24f6490f
AL
1<?xml version="1.0" encoding="utf-8" standalone="no"?>
2<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
3 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
4
5<!ENTITY % aptent SYSTEM "apt.ent">
6%aptent;
7
8]>
9
10<refentry>
5e80de29
AL
11
12 <refentryinfo>
13 &apt-author.jgunthorpe;
14 &apt-author.team;
15 &apt-email;
16 &apt-product;
17 <!-- The last update date -->
007aba92 18 <date>05 November 2008</date>
5e80de29 19 </refentryinfo>
24f6490f
AL
20
21 <refmeta>
22 <refentrytitle>apt-get</refentrytitle>
23 <manvolnum>8</manvolnum>
24 </refmeta>
25
26 <!-- Man page title -->
27 <refnamediv>
28 <refname>apt-get</refname>
29 <refpurpose>APT package handling utility -- command-line interface</refpurpose>
30 </refnamediv>
31
32 <!-- Arguments -->
33 <refsynopsisdiv>
34 <cmdsynopsis>
35 <command>apt-get</command>
c74e6100 36 <arg><option>-vsqdyfmubV</option></arg>
7e4c7441
EL
37 <arg>
38 <option>-o=
4a09fd30 39 <replaceable>config_string</replaceable>
7e4c7441
EL
40 </option>
41 </arg>
42 <arg>
43 <option>-c=
44 <replaceable>config_file</replaceable>
45 </option>
46 </arg>
47 <arg>
4a09fd30
EL
48 <option>-t=</option>
49 <group choice='req'>
50 <arg choice='plain'>
fc91816f 51 <replaceable>target_release_name</replaceable>
4a09fd30
EL
52 </arg>
53 <arg choice='plain'>
fc91816f 54 <replaceable>target_release_number_expression</replaceable>
4a09fd30
EL
55 </arg>
56 </group>
7e4c7441
EL
57 </arg>
58
24f6490f 59 <group choice="req">
c74e6100
EL
60 <arg choice='plain'>update</arg>
61 <arg choice='plain'>upgrade</arg>
62 <arg choice='plain'>dselect-upgrade</arg>
63 <arg choice='plain'>install
ef48e3ae 64 <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
78482e30
EL
65 <arg>
66 <group choice='req'>
67 <arg choice='plain'>
68 =<replaceable>pkg_version_number</replaceable>
69 </arg>
70 <arg choice='plain'>
71 /<replaceable>target_release_name</replaceable>
72 </arg>
73 </group>
74 </arg>
ef48e3ae
EL
75 </arg>
76 </arg>
c74e6100
EL
77 <arg choice='plain'>remove <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
78 <arg choice='plain'>purge <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
79 <arg choice='plain'>source
ef48e3ae 80 <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
060d4403
EL
81 <arg>
82 =<replaceable>pkg_version_number</replaceable>
83 </arg>
ef48e3ae
EL
84 </arg>
85 </arg>
c74e6100
EL
86 <arg choice='plain'>build-dep <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
87 <arg choice='plain'>check</arg>
88 <arg choice='plain'>clean</arg>
89 <arg choice='plain'>autoclean</arg>
90 <arg choice='plain'>autoremove</arg>
91 <arg choice='plain'>
92 <group choice='req'>
93 <arg choice='plain'>-h</arg>
94 <arg choice='plain'>--help</arg>
95 </group>
96 </arg>
24f6490f
AL
97 </group>
98 </cmdsynopsis>
99 </refsynopsisdiv>
100
101 <refsect1><title>Description</title>
102 <para><command>apt-get</command> is the command-line tool for handling packages, and may be
103 considered the user's "back-end" to other tools using the APT
007aba92
EL
104 library. Several "front-end" interfaces exist, such as &dselect;,
105 &aptitude;, &synaptic;, &gnome-apt; and &wajig;.</para>
24f6490f
AL
106
107 <para>Unless the <option>-h</option>, or <option>--help</option> option is given, one of the
108 commands below must be present.</para>
109
110 <variablelist>
111 <varlistentry><term>update</term>
112 <listitem><para><literal>update</literal> is used to resynchronize the package index files from
113 their sources. The indexes of available packages are fetched from the
114 location(s) specified in <filename>/etc/apt/sources.list</filename>.
115 For example, when using a Debian archive, this command retrieves and
116 scans the <filename>Packages.gz</filename> files, so that information about new
117 and updated packages is available. An <literal>update</literal> should always be
118 performed before an <literal>upgrade</literal> or <literal>dist-upgrade</literal>. Please
119 be aware that the overall progress meter will be incorrect as the size
120 of the package files cannot be known in advance.</para></listitem>
121 </varlistentry>
122
123 <varlistentry><term>upgrade</term>
124 <listitem><para><literal>upgrade</literal> is used to install the newest versions of all packages
125 currently installed on the system from the sources enumerated in
126 <filename>/etc/apt/sources.list</filename>. Packages currently installed with
127 new versions available are retrieved and upgraded; under no circumstances
128 are currently installed packages removed, or packages not already installed
129 retrieved and installed. New versions of currently installed packages that
130 cannot be upgraded without changing the install status of another package
131 will be left at their current version. An <literal>update</literal> must be
132 performed first so that <command>apt-get</command> knows that new versions of packages are
133 available.</para></listitem>
134 </varlistentry>
135
136 <varlistentry><term>dselect-upgrade</term>
137 <listitem><para><literal>dselect-upgrade</literal>
138 is used in conjunction with the traditional Debian packaging
139 front-end, &dselect;. <literal>dselect-upgrade</literal>
140 follows the changes made by &dselect; to the <literal>Status</literal>
141 field of available packages, and performs the actions necessary to realize
142 that state (for instance, the removal of old and the installation of new
143 packages).</para></listitem>
144 </varlistentry>
145
146 <varlistentry><term>dist-upgrade</term>
147 <listitem><para><literal>dist-upgrade</literal> in addition to performing the function of
148 <literal>upgrade</literal>, also intelligently handles changing dependencies
149 with new versions of packages; <command>apt-get</command> has a "smart" conflict
150 resolution system, and it will attempt to upgrade the most important
151 packages at the expense of less important ones if necessary.
152 The <filename>/etc/apt/sources.list</filename> file contains a list of locations
153 from which to retrieve desired package files.
154 See also &apt-preferences; for a mechanism for
155 overriding the general settings for individual packages.</para></listitem>
156 </varlistentry>
157
158 <varlistentry><term>install</term>
2b0de496
EL
159 <listitem>
160 <para>
161 <literal>install</literal> is followed by one or more
162 packages desired for installation or upgrading.
163 Each package is a package name, not a fully qualified
164 filename (for instance, in a Debian GNU/Linux system,
165 libc6 would be the argument provided, not
166 <literal>libc6_1.9.6-2.deb</literal>). All packages required
167 by the package(s) specified for installation will also
168 be retrieved and installed.
169 The <filename>/etc/apt/sources.list</filename> file is
170 used to locate the desired packages. If a hyphen is
171 appended to the package name (with no intervening space),
172 the identified package will be removed if it is installed.
173 Similarly a plus sign can be used to designate a
174 package to install. These latter features may be used
175 to override decisions made by apt-get's conflict
176 resolution system.
177 </para>
24f6490f
AL
178
179 <para>A specific version of a package can be selected for installation by
180 following the package name with an equals and the version of the package
181 to select. This will cause that version to be located and selected for
182 install. Alternatively a specific distribution can be selected by
183 following the package name with a slash and the version of the
184 distribution or the Archive name (stable, testing, unstable).</para>
185
186 <para>Both of the version selection mechanisms can downgrade packages and must
187 be used with care.</para>
188
2b0de496
EL
189 <para>This is also the target to use if you want to upgrade one or
190 more already-installed packages without upgrading every package
191 you have on your system. Unlike the "upgrade" target, which
192 installs the newest version of all currently installed packages,
193 "install" will install the newest version of only the package(s)
194 specified. Simply provide the name of the package(s) you wish
195 to upgrade, and if a newer version is available, it (and its
196 dependencies, as described above) will be downloaded and
197 installed.
198 </para>
199
24f6490f
AL
200 <para>Finally, the &apt-preferences; mechanism allows you to
201 create an alternative installation policy for
202 individual packages.</para>
203
204 <para>If no package matches the given expression and the expression contains one
205 of '.', '?' or '*' then it is assumed to be a POSIX regular expression,
206 and it is applied
207 to all package names in the database. Any matches are then installed (or
208 removed). Note that matching is done by substring so 'lo.*' matches 'how-lo'
209 and 'lowest'. If this is undesired, anchor the regular expression
210 with a '^' or '$' character, or create a more specific regular expression.</para></listitem>
211 </varlistentry>
212
213 <varlistentry><term>remove</term>
214 <listitem><para><literal>remove</literal> is identical to <literal>install</literal> except that packages are
215 removed instead of installed. If a plus sign is appended to the package
216 name (with no intervening space), the identified package will be
217 installed instead of removed.</para></listitem>
218 </varlistentry>
219
e47c7d16
MV
220 <varlistentry><term>purge</term>
221 <listitem><para><literal>purge</literal> is identical to <literal>remove</literal> except that packages are
222 removed and purged.</para></listitem>
223 </varlistentry>
224
24f6490f
AL
225 <varlistentry><term>source</term>
226 <listitem><para><literal>source</literal> causes <command>apt-get</command> to fetch source packages. APT
227 will examine the available packages to decide which source package to
228 fetch. It will then find and download into the current directory the
229 newest available version of that source package. Source packages are
230 tracked separately from binary packages via <literal>deb-src</literal> type lines
231 in the &sources-list; file. This probably will mean that you will not
232 get the same source as the package you have installed or as you could
233 install. If the --compile options is specified then the package will be
234 compiled to a binary .deb using dpkg-buildpackage, if --download-only is
235 specified then the source package will not be unpacked.</para>
236
237 <para>A specific source version can be retrieved by postfixing the source name
238 with an equals and then the version to fetch, similar to the mechanism
239 used for the package files. This enables exact matching of the source
240 package name and version, implicitly enabling the
241 <literal>APT::Get::Only-Source</literal> option.</para>
242
243 <para>Note that source packages are not tracked like binary packages, they
244 exist only in the current directory and are similar to downloading source
245 tar balls.</para></listitem>
246 </varlistentry>
247
248 <varlistentry><term>build-dep</term>
249 <listitem><para><literal>build-dep</literal> causes apt-get to install/remove packages in an
250 attempt to satisfy the build dependencies for a source package.</para></listitem>
251 </varlistentry>
252
253 <varlistentry><term>check</term>
254 <listitem><para><literal>check</literal> is a diagnostic tool; it updates the package cache and checks
255 for broken dependencies.</para></listitem>
256 </varlistentry>
257
258 <varlistentry><term>clean</term>
259 <listitem><para><literal>clean</literal> clears out the local repository of retrieved package
260 files. It removes everything but the lock file from
261 <filename>&cachedir;/archives/</filename> and
262 <filename>&cachedir;/archives/partial/</filename>. When APT is used as a
263 &dselect; method, <literal>clean</literal> is run automatically.
264 Those who do not use dselect will likely want to run <literal>apt-get clean</literal>
265 from time to time to free up disk space.</para></listitem>
266 </varlistentry>
267
268 <varlistentry><term>autoclean</term>
269 <listitem><para>Like <literal>clean</literal>, <literal>autoclean</literal> clears out the local
270 repository of retrieved package files. The difference is that it only
271 removes package files that can no longer be downloaded, and are largely
272 useless. This allows a cache to be maintained over a long period without
273 it growing out of control. The configuration option
274 <literal>APT::Clean-Installed</literal> will prevent installed packages from being
275 erased if it is set to off.</para></listitem>
276 </varlistentry>
0e4fe941
MV
277
278 <varlistentry><term>autoremove</term>
279 <listitem><para><literal>autoremove</literal> is used to remove packages that were automatically
280 installed to satisfy dependencies for some package and that are no more needed.</para></listitem>
281 </varlistentry>
24f6490f
AL
282 </variablelist>
283 </refsect1>
284
285 <refsect1><title>options</title>
286 &apt-cmdblurb;
287
288 <variablelist>
d914c3b7
EL
289 <varlistentry><term><option>--no-install-recommends</option></term>
290 <listitem><para>Do not consider recommended packages as a dependency for installing.
291 Configuration Item: <literal>APT::Install-Recommends</literal>.</para></listitem>
292 </varlistentry>
293
24f6490f
AL
294 <varlistentry><term><option>-d</option></term><term><option>--download-only</option></term>
295 <listitem><para>Download only; package files are only retrieved, not unpacked or installed.
296 Configuration Item: <literal>APT::Get::Download-Only</literal>.</para></listitem>
297 </varlistentry>
298
299 <varlistentry><term><option>-f</option></term><term><option>--fix-broken</option></term>
300 <listitem><para>Fix; attempt to correct a system with broken dependencies in
301 place. This option, when used with install/remove, can omit any packages
302 to permit APT to deduce a likely solution. Any Package that are specified
303 must completely correct the problem. The option is sometimes necessary when
304 running APT for the first time; APT itself does not allow broken package
305 dependencies to exist on a system. It is possible that a system's
306 dependency structure can be so corrupt as to require manual intervention
307 (which usually means using &dselect; or <command>dpkg --remove</command> to eliminate some of
308 the offending packages). Use of this option together with <option>-m</option> may produce an
309 error in some situations.
310 Configuration Item: <literal>APT::Get::Fix-Broken</literal>.</para></listitem>
311 </varlistentry>
312
313 <varlistentry><term><option>-m</option></term><term><option>--ignore-missing</option></term>
314 <term><option>--fix-missing</option></term>
315 <listitem><para>Ignore missing packages; If packages cannot be retrieved or fail the
316 integrity check after retrieval (corrupted package files), hold back
317 those packages and handle the result. Use of this option together with
318 <option>-f</option> may produce an error in some situations. If a package is
319 selected for installation (particularly if it is mentioned on the
320 command line) and it could not be downloaded then it will be silently
321 held back.
322 Configuration Item: <literal>APT::Get::Fix-Missing</literal>.</para></listitem>
323 </varlistentry>
324
325 <varlistentry><term><option>--no-download</option></term>
326 <listitem><para>Disables downloading of packages. This is best used with
327 <option>--ignore-missing</option> to force APT to use only the .debs it has
328 already downloaded.
329 Configuration Item: <literal>APT::Get::Download</literal>.</para></listitem>
330 </varlistentry>
331
332 <varlistentry><term><option>-q</option></term><term><option>--quiet</option></term>
333 <listitem><para>Quiet; produces output suitable for logging, omitting progress indicators.
334 More q's will produce more quiet up to a maximum of 2. You can also use
335 <option>-q=#</option> to set the quiet level, overriding the configuration file.
336 Note that quiet level 2 implies <option>-y</option>, you should never use -qq
337 without a no-action modifier such as -d, --print-uris or -s as APT may
338 decided to do something you did not expect.
339 Configuration Item: <literal>quiet</literal>.</para></listitem>
340 </varlistentry>
341
342 <varlistentry><term><option>-s</option></term>
343 <term><option>--simulate</option></term>
344 <term><option>--just-print</option></term>
345 <term><option>--dry-run</option></term>
346 <term><option>--recon</option></term>
347 <term><option>--no-act</option></term>
348 <listitem><para>No action; perform a simulation of events that would occur but do not
349 actually change the system.
350 Configuration Item: <literal>APT::Get::Simulate</literal>.</para>
351
352 <para>Simulate prints out
353 a series of lines each one representing a dpkg operation, Configure (Conf),
354 Remove (Remv), Unpack (Inst). Square brackets indicate broken packages with
355 and empty set of square brackets meaning breaks that are of no consequence
356 (rare).</para></listitem>
357 </varlistentry>
358
359 <varlistentry><term><option>-y</option></term><term><option>--yes</option></term>
360 <term><option>--assume-yes</option></term>
361 <listitem><para>Automatic yes to prompts; assume "yes" as answer to all prompts and run
362 non-interactively. If an undesirable situation, such as changing a held
b3d44315
MV
363 package, trying to install a unauthenticated package or removing an essential package
364 occurs then <literal>apt-get</literal> will abort.
24f6490f
AL
365 Configuration Item: <literal>APT::Get::Assume-Yes</literal>.</para></listitem>
366 </varlistentry>
367
368 <varlistentry><term><option>-u</option></term><term><option>--show-upgraded</option></term>
369 <listitem><para>Show upgraded packages; Print out a list of all packages that are to be
370 upgraded.
371 Configuration Item: <literal>APT::Get::Show-Upgraded</literal>.</para></listitem>
372 </varlistentry>
373
374 <varlistentry><term><option>-V</option></term><term><option>--verbose-versions</option></term>
375 <listitem><para>Show full versions for upgraded and installed packages.
376 Configuration Item: <literal>APT::Get::Show-Versions</literal>.</para></listitem>
377 </varlistentry>
378
379 <varlistentry><term><option>-b</option></term><term><option>--compile</option></term>
380 <term><option>--build</option></term>
381 <listitem><para>Compile source packages after downloading them.
382 Configuration Item: <literal>APT::Get::Compile</literal>.</para></listitem>
383 </varlistentry>
384
385 <varlistentry><term><option>--ignore-hold</option></term>
386 <listitem><para>Ignore package Holds; This causes <command>apt-get</command> to ignore a hold
387 placed on a package. This may be useful in conjunction with
388 <literal>dist-upgrade</literal> to override a large number of undesired holds.
389 Configuration Item: <literal>APT::Ignore-Hold</literal>.</para></listitem>
390 </varlistentry>
391
392 <varlistentry><term><option>--no-upgrade</option></term>
393 <listitem><para>Do not upgrade packages; When used in conjunction with <literal>install</literal>,
394 <literal>no-upgrade</literal> will prevent packages on the command line
395 from being upgraded if they are already installed.
396 Configuration Item: <literal>APT::Get::Upgrade</literal>.</para></listitem>
397 </varlistentry>
398
399 <varlistentry><term><option>--force-yes</option></term>
400 <listitem><para>Force yes; This is a dangerous option that will cause apt to continue
401 without prompting if it is doing something potentially harmful. It
402 should not be used except in very special situations. Using
403 <literal>force-yes</literal> can potentially destroy your system!
404 Configuration Item: <literal>APT::Get::force-yes</literal>.</para></listitem>
405 </varlistentry>
406
407 <varlistentry><term><option>--print-uris</option></term>
408 <listitem><para>Instead of fetching the files to install their URIs are printed. Each
409 URI will have the path, the destination file name, the size and the expected
410 md5 hash. Note that the file name to write to will not always match
411 the file name on the remote site! This also works with the
412 <literal>source</literal> and <literal>update</literal> commands. When used with the
413 <literal>update</literal> command the MD5 and size are not included, and it is
414 up to the user to decompress any compressed files.
415 Configuration Item: <literal>APT::Get::Print-URIs</literal>.</para></listitem>
416 </varlistentry>
417
418 <varlistentry><term><option>--purge</option></term>
419 <listitem><para>Use purge instead of remove for anything that would be removed.
420 An asterisk ("*") will be displayed next to packages which are
421 scheduled to be purged.
422 Configuration Item: <literal>APT::Get::Purge</literal>.</para></listitem>
423 </varlistentry>
424
425 <varlistentry><term><option>--reinstall</option></term>
426 <listitem><para>Re-Install packages that are already installed and at the newest version.
427 Configuration Item: <literal>APT::Get::ReInstall</literal>.</para></listitem>
428 </varlistentry>
429
430 <varlistentry><term><option>--list-cleanup</option></term>
431 <listitem><para>This option defaults to on, use <literal>--no-list-cleanup</literal> to turn it
432 off. When on <command>apt-get</command> will automatically manage the contents of
433 <filename>&statedir;/lists</filename> to ensure that obsolete files are erased.
434 The only reason to turn it off is if you frequently change your source
435 list.
436 Configuration Item: <literal>APT::Get::List-Cleanup</literal>.</para></listitem>
437 </varlistentry>
438
439 <varlistentry><term><option>-t</option></term>
440 <term><option>--target-release</option></term>
441 <term><option>--default-release</option></term>
442 <listitem><para>This option controls the default input to the policy engine, it creates
99fc3e08
LB
443 a default pin at priority 990 using the specified release string.
444 This overrides the general settings in <filename>/etc/apt/preferences</filename>.
445 Specifically pinned packages are not affected by the value
446 of this option. In short, this option
24f6490f
AL
447 lets you have simple control over which distribution packages will be
448 retrieved from. Some common examples might be
449 <option>-t '2.1*'</option> or <option>-t unstable</option>.
450 Configuration Item: <literal>APT::Default-Release</literal>;
451 see also the &apt-preferences; manual page.</para></listitem>
452 </varlistentry>
453
454 <varlistentry><term><option>--trivial-only</option></term>
455 <listitem><para>
456 Only perform operations that are 'trivial'. Logically this can be considered
457 related to <option>--assume-yes</option>, where <option>--assume-yes</option> will answer
458 yes to any prompt, <option>--trivial-only</option> will answer no.
459 Configuration Item: <literal>APT::Get::Trivial-Only</literal>.</para></listitem>
460 </varlistentry>
461
462 <varlistentry><term><option>--no-remove</option></term>
463 <listitem><para>If any packages are to be removed apt-get immediately aborts without
464 prompting.
465 Configuration Item: <literal>APT::Get::Remove</literal>.</para></listitem>
466 </varlistentry>
467
0e4fe941
MV
468 <varlistentry><term><option>--auto-remove</option></term>
469 <listitem><para>If the command is either <literal>install</literal> or <literal>remove</literal>,
470 then this option acts like running <literal>autoremove</literal> command, removing the unused
471 dependency packages. Configuration Item: <literal>APT::Get::AutomaticRemove</literal>.
472 </para></listitem>
473 </varlistentry>
474
24f6490f 475 <varlistentry><term><option>--only-source</option></term>
9dbed7ac
AL
476 <listitem><para>Only has meaning for the
477 <literal>source</literal> and <literal>build-dep</literal>
478 commands. Indicates that the given source names are not to be
479 mapped through the binary table. This means that if this option
480 is specified, these commands will only accept source package
481 names as arguments, rather than accepting binary package names
482 and looking up the corresponding source package. Configuration
483 Item: <literal>APT::Get::Only-Source</literal>.</para></listitem>
24f6490f
AL
484 </varlistentry>
485
1979e742
MV
486 <varlistentry><term><option>--diff-only</option></term><term><option>--dsc-only</option></term><term><option>--tar-only</option></term>
487 <listitem><para>Download only the diff, dsc, or tar file of a source archive.
488 Configuration Item: <literal>APT::Get::Diff-Only</literal>, <literal>APT::Get::Dsc-Only</literal>, and
24f6490f
AL
489 <literal>APT::Get::Tar-Only</literal>.</para></listitem>
490 </varlistentry>
491
492 <varlistentry><term><option>--arch-only</option></term>
493 <listitem><para>Only process architecture-dependent build-dependencies.
494 Configuration Item: <literal>APT::Get::Arch-Only</literal>.</para></listitem>
495 </varlistentry>
b3d44315
MV
496
497 <varlistentry><term><option>--allow-unauthenticated</option></term>
498 <listitem><para>Ignore if packages can't be authenticated and don't prompt about it.
e3a1f08d 499 This is useful for tools like pbuilder.
b3d44315
MV
500 Configuration Item: <literal>APT::Get::AllowUnauthenticated</literal>.</para></listitem>
501 </varlistentry>
24f6490f 502
b3d44315 503
24f6490f
AL
504 &apt-commonoptions;
505
506 </variablelist>
507 </refsect1>
508
509 <refsect1><title>Files</title>
510 <variablelist>
511 <varlistentry><term><filename>/etc/apt/sources.list</filename></term>
512 <listitem><para>Locations to fetch packages from.
513 Configuration Item: <literal>Dir::Etc::SourceList</literal>.</para></listitem>
514 </varlistentry>
515
516 <varlistentry><term><filename>/etc/apt/apt.conf</filename></term>
517 <listitem><para>APT configuration file.
518 Configuration Item: <literal>Dir::Etc::Main</literal>.</para></listitem>
519 </varlistentry>
520
521 <varlistentry><term><filename>/etc/apt/apt.conf.d/</filename></term>
763f9549 522 <listitem><para>APT configuration file fragments.
24f6490f
AL
523 Configuration Item: <literal>Dir::Etc::Parts</literal>.</para></listitem>
524 </varlistentry>
525
526 <varlistentry><term><filename>/etc/apt/preferences</filename></term>
527 <listitem><para>Version preferences file.
528 This is where you would specify "pinning",
529 i.e. a preference to get certain packages
530 from a separate source
531 or from a different version of a distribution.
532 Configuration Item: <literal>Dir::Etc::Preferences</literal>.</para></listitem>
533 </varlistentry>
534
535 <varlistentry><term><filename>&cachedir;/archives/</filename></term>
536 <listitem><para>Storage area for retrieved package files.
537 Configuration Item: <literal>Dir::Cache::Archives</literal>.</para></listitem>
538 </varlistentry>
539
540 <varlistentry><term><filename>&cachedir;/archives/partial/</filename></term>
541 <listitem><para>Storage area for package files in transit.
542 Configuration Item: <literal>Dir::Cache::Archives</literal> (implicit partial). </para></listitem>
543 </varlistentry>
544
545 <varlistentry><term><filename>&statedir;/lists/</filename></term>
546 <listitem><para>Storage area for state information for each package resource specified in
547 &sources-list;
548 Configuration Item: <literal>Dir::State::Lists</literal>.</para></listitem>
549 </varlistentry>
550
551 <varlistentry><term><filename>&statedir;/lists/partial/</filename></term>
552 <listitem><para> Storage area for state information in transit.
553 Configuration Item: <literal>Dir::State::Lists</literal> (implicit partial).</para></listitem>
554 </varlistentry>
555 </variablelist>
556 </refsect1>
557
558 <refsect1><title>See Also</title>
559 <para>&apt-cache;, &apt-cdrom;, &dpkg;, &dselect;, &sources-list;,
65d71b38 560 &apt-conf;, &apt-config;, &apt-secure;,
4d9fb6b0 561 The APT User's guide in &guidesdir;, &apt-preferences;, the APT Howto.</para>
24f6490f
AL
562 </refsect1>
563
564 <refsect1><title>Diagnostics</title>
565 <para><command>apt-get</command> returns zero on normal operation, decimal 100 on error.</para>
566 </refsect1>
77c9def7
EL
567 <refsect1>
568 <title>ORIGINAL AUTHORS</title>
4a09fd30 569 <para>&apt-author.jgunthorpe;</para>
77c9def7 570 </refsect1>
4a09fd30 571 <refsect1>
77c9def7 572 <title>CURRENT AUTHORS</title>
4a09fd30
EL
573 <para>
574 &apt-author.team;
575 &apt-qapage;
576 </para>
577 </refsect1>
24f6490f 578 &manbugs;
24f6490f 579</refentry>