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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<!ENTITY % aptverbatiment SYSTEM "apt-verbatim.ent">
9%aptverbatiment;
10
11]>
12
13<refentry>
14
15 <refentryinfo>
16 &apt-author.jgunthorpe;
17 &apt-author.team;
18 &apt-email;
19 &apt-product;
20 <!-- The last update date -->
21 <date>08 November 2008</date>
22 </refentryinfo>
23
24 <refmeta>
25 <refentrytitle>apt-get</refentrytitle>
26 <manvolnum>8</manvolnum>
27 <refmiscinfo class="manual">APT</refmiscinfo>
28 </refmeta>
29
30 <!-- Man page title -->
31 <refnamediv>
32 <refname>apt-get</refname>
33 <refpurpose>APT package handling utility -- command-line interface</refpurpose>
34 </refnamediv>
35
36 <!-- Arguments -->
37 <refsynopsisdiv>
38 <cmdsynopsis>
39 <command>apt-get</command>
40 <arg><option>-sqdyfmubV</option></arg>
41 <arg>
42 <option>-o=
43 <replaceable>config_string</replaceable>
44 </option>
45 </arg>
46 <arg>
47 <option>-c=
48 <replaceable>config_file</replaceable>
49 </option>
50 </arg>
51 <arg>
52 <option>-t=</option>
53 <arg choice='plain'>
54 <replaceable>target_release</replaceable>
55 </arg>
56 </arg>
57
58 <group choice="req">
59 <arg choice='plain'>update</arg>
60 <arg choice='plain'>upgrade</arg>
61 <arg choice='plain'>dselect-upgrade</arg>
62 <arg choice='plain'>dist-upgrade</arg>
63 <arg choice='plain'>install
64 <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
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</replaceable>
72 </arg>
73 </group>
74 </arg>
75 </arg>
76 </arg>
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
80 <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
81 <arg>
82 <group choice='req'>
83 <arg choice='plain'>
84 =<replaceable>pkg_version_number</replaceable>
85 </arg>
86 <arg choice='plain'>
87 /<replaceable>target_release</replaceable>
88 </arg>
89 </group>
90 </arg>
91 </arg>
92 </arg>
93 <arg choice='plain'>build-dep <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
94 <arg choice='plain'>check</arg>
95 <arg choice='plain'>clean</arg>
96 <arg choice='plain'>autoclean</arg>
97 <arg choice='plain'>autoremove</arg>
98 <arg choice='plain'>
99 <group choice='req'>
100 <arg choice='plain'>-v</arg>
101 <arg choice='plain'>--version</arg>
102 </group>
103 </arg>
104 <arg choice='plain'>
105 <group choice='req'>
106 <arg choice='plain'>-h</arg>
107 <arg choice='plain'>--help</arg>
108 </group>
109 </arg>
110 </group>
111 </cmdsynopsis>
112 </refsynopsisdiv>
113
114 <refsect1><title>Description</title>
115 <para><command>apt-get</command> is the command-line tool for handling packages, and may be
116 considered the user's "back-end" to other tools using the APT
117 library. Several "front-end" interfaces exist, such as &dselect;,
118 &aptitude;, &synaptic; and &wajig;.</para>
119
120 <para>Unless the <option>-h</option>, or <option>--help</option> option is given, one of the
121 commands below must be present.</para>
122
123 <variablelist>
124 <varlistentry><term>update</term>
125 <listitem><para><literal>update</literal> is used to resynchronize the package index files from
126 their sources. The indexes of available packages are fetched from the
127 location(s) specified in <filename>/etc/apt/sources.list</filename>.
128 For example, when using a Debian archive, this command retrieves and
129 scans the <filename>Packages.gz</filename> files, so that information about new
130 and updated packages is available. An <literal>update</literal> should always be
131 performed before an <literal>upgrade</literal> or <literal>dist-upgrade</literal>. Please
132 be aware that the overall progress meter will be incorrect as the size
133 of the package files cannot be known in advance.</para></listitem>
134 </varlistentry>
135
136 <varlistentry><term>upgrade</term>
137 <listitem><para><literal>upgrade</literal> is used to install the newest versions of all packages
138 currently installed on the system from the sources enumerated in
139 <filename>/etc/apt/sources.list</filename>. Packages currently installed with
140 new versions available are retrieved and upgraded; under no circumstances
141 are currently installed packages removed, or packages not already installed
142 retrieved and installed. New versions of currently installed packages that
143 cannot be upgraded without changing the install status of another package
144 will be left at their current version. An <literal>update</literal> must be
145 performed first so that <command>apt-get</command> knows that new versions of packages are
146 available.</para></listitem>
147 </varlistentry>
148
149 <varlistentry><term>dselect-upgrade</term>
150 <listitem><para><literal>dselect-upgrade</literal>
151 is used in conjunction with the traditional Debian packaging
152 front-end, &dselect;. <literal>dselect-upgrade</literal>
153 follows the changes made by &dselect; to the <literal>Status</literal>
154 field of available packages, and performs the actions necessary to realize
155 that state (for instance, the removal of old and the installation of new
156 packages).</para></listitem>
157 </varlistentry>
158
159 <varlistentry><term>dist-upgrade</term>
160 <listitem><para><literal>dist-upgrade</literal> in addition to performing the function of
161 <literal>upgrade</literal>, also intelligently handles changing dependencies
162 with new versions of packages; <command>apt-get</command> has a "smart" conflict
163 resolution system, and it will attempt to upgrade the most important
164 packages at the expense of less important ones if necessary.
165 So, <literal>dist-upgrade</literal> command may remove some packages.
166 The <filename>/etc/apt/sources.list</filename> file contains a list of locations
167 from which to retrieve desired package files.
168 See also &apt-preferences; for a mechanism for
169 overriding the general settings for individual packages.</para></listitem>
170 </varlistentry>
171
172 <varlistentry><term>install</term>
173 <listitem>
174 <para><literal>install</literal> is followed by one or more
175 packages desired for installation or upgrading.
176 Each package is a package name, not a fully qualified
177 filename (for instance, in a Debian GNU/Linux system,
178 libc6 would be the argument provided, not
179 <literal>libc6_1.9.6-2.deb</literal>). All packages required
180 by the package(s) specified for installation will also
181 be retrieved and installed.
182 The <filename>/etc/apt/sources.list</filename> file is
183 used to locate the desired packages. If a hyphen is
184 appended to the package name (with no intervening space),
185 the identified package will be removed if it is installed.
186 Similarly a plus sign can be used to designate a
187 package to install. These latter features may be used
188 to override decisions made by apt-get's conflict
189 resolution system.
190 </para>
191
192 <para>A specific version of a package can be selected for installation by
193 following the package name with an equals and the version of the package
194 to select. This will cause that version to be located and selected for
195 install. Alternatively a specific distribution can be selected by
196 following the package name with a slash and the version of the
197 distribution or the Archive name (stable, testing, unstable).</para>
198
199 <para>Both of the version selection mechanisms can downgrade packages and must
200 be used with care.</para>
201
202 <para>This is also the target to use if you want to upgrade one or
203 more already-installed packages without upgrading every package
204 you have on your system. Unlike the "upgrade" target, which
205 installs the newest version of all currently installed packages,
206 "install" will install the newest version of only the package(s)
207 specified. Simply provide the name of the package(s) you wish
208 to upgrade, and if a newer version is available, it (and its
209 dependencies, as described above) will be downloaded and
210 installed.
211 </para>
212
213 <para>Finally, the &apt-preferences; mechanism allows you to
214 create an alternative installation policy for
215 individual packages.</para>
216
217 <para>If no package matches the given expression and the expression contains one
218 of '.', '?' or '*' then it is assumed to be a POSIX regular expression,
219 and it is applied
220 to all package names in the database. Any matches are then installed (or
221 removed). Note that matching is done by substring so 'lo.*' matches 'how-lo'
222 and 'lowest'. If this is undesired, anchor the regular expression
223 with a '^' or '$' character, or create a more specific regular expression.</para></listitem>
224 </varlistentry>
225
226 <varlistentry><term>remove</term>
227 <listitem><para><literal>remove</literal> is identical to <literal>install</literal> except that packages are
228 removed instead of installed. Note the removing a package leaves its
229 configuration files in system. If a plus sign is appended to the package
230 name (with no intervening space), the identified package will be
231 installed instead of removed.</para></listitem>
232 </varlistentry>
233
234 <varlistentry><term>purge</term>
235 <listitem><para><literal>purge</literal> is identical to <literal>remove</literal> except that packages are
236 removed and purged (any configuration files are deleted too).</para></listitem>
237 </varlistentry>
238
239 <varlistentry><term>source</term>
240 <listitem><para><literal>source</literal> causes <command>apt-get</command> to fetch source packages. APT
241 will examine the available packages to decide which source package to
242 fetch. It will then find and download into the current directory the
243 newest available version of that source package while respect the
244 default release, set with the option <literal>APT::Default-Release</literal>,
245 the <option>-t</option> option or per package with the
246 <literal>pkg/release</literal> syntax, if possible.</para>
247
248 <para>Source packages are tracked separately
249 from binary packages via <literal>deb-src</literal> type lines
250 in the &sources-list; file. This means that you will need to add such a line
251 for each repository you want to get sources from. If you don't do this
252 you will properly get another (newer, older or none) source version than
253 the one you have installed or could install.</para>
254
255 <para>If the <option>--compile</option> option is specified
256 then the package will be compiled to a binary .deb using
257 <command>dpkg-buildpackage</command>, if <option>--download-only</option>
258 is specified then the source package will not be unpacked.</para>
259
260 <para>A specific source version can be retrieved by postfixing the source name
261 with an equals and then the version to fetch, similar to the mechanism
262 used for the package files. This enables exact matching of the source
263 package name and version, implicitly enabling the
264 <literal>APT::Get::Only-Source</literal> option.</para>
265
266 <para>Note that source packages are not tracked like binary packages, they
267 exist only in the current directory and are similar to downloading source
268 tar balls.</para></listitem>
269 </varlistentry>
270
271 <varlistentry><term>build-dep</term>
272 <listitem><para><literal>build-dep</literal> causes apt-get to install/remove packages in an
273 attempt to satisfy the build dependencies for a source package.</para></listitem>
274 </varlistentry>
275
276 <varlistentry><term>check</term>
277 <listitem><para><literal>check</literal> is a diagnostic tool; it updates the package cache and checks
278 for broken dependencies.</para></listitem>
279 </varlistentry>
280
281 <varlistentry><term>clean</term>
282 <listitem><para><literal>clean</literal> clears out the local repository of retrieved package
283 files. It removes everything but the lock file from
284 <filename>&cachedir;/archives/</filename> and
285 <filename>&cachedir;/archives/partial/</filename>. When APT is used as a
286 &dselect; method, <literal>clean</literal> is run automatically.
287 Those who do not use dselect will likely want to run <literal>apt-get clean</literal>
288 from time to time to free up disk space.</para></listitem>
289 </varlistentry>
290
291 <varlistentry><term>autoclean</term>
292 <listitem><para>Like <literal>clean</literal>, <literal>autoclean</literal> clears out the local
293 repository of retrieved package files. The difference is that it only
294 removes package files that can no longer be downloaded, and are largely
295 useless. This allows a cache to be maintained over a long period without
296 it growing out of control. The configuration option
297 <literal>APT::Clean-Installed</literal> will prevent installed packages from being
298 erased if it is set to off.</para></listitem>
299 </varlistentry>
300
301 <varlistentry><term>autoremove</term>
302 <listitem><para><literal>autoremove</literal> is used to remove packages that were automatically
303 installed to satisfy dependencies for some package and that are no more needed.</para></listitem>
304 </varlistentry>
305 </variablelist>
306 </refsect1>
307
308 <refsect1><title>options</title>
309 &apt-cmdblurb;
310
311 <variablelist>
312 <varlistentry><term><option>--no-install-recommends</option></term>
313 <listitem><para>Do not consider recommended packages as a dependency for installing.
314 Configuration Item: <literal>APT::Install-Recommends</literal>.</para></listitem>
315 </varlistentry>
316
317 <varlistentry><term><option>-d</option></term><term><option>--download-only</option></term>
318 <listitem><para>Download only; package files are only retrieved, not unpacked or installed.
319 Configuration Item: <literal>APT::Get::Download-Only</literal>.</para></listitem>
320 </varlistentry>
321
322 <varlistentry><term><option>-f</option></term><term><option>--fix-broken</option></term>
323 <listitem><para>Fix; attempt to correct a system with broken dependencies in
324 place. This option, when used with install/remove, can omit any packages
325 to permit APT to deduce a likely solution. If packages are specified,
326 these have to completely correct the problem. The option is sometimes necessary when
327 running APT for the first time; APT itself does not allow broken package
328 dependencies to exist on a system. It is possible that a system's
329 dependency structure can be so corrupt as to require manual intervention
330 (which usually means using &dselect; or <command>dpkg --remove</command> to eliminate some of
331 the offending packages). Use of this option together with <option>-m</option> may produce an
332 error in some situations.
333 Configuration Item: <literal>APT::Get::Fix-Broken</literal>.</para></listitem>
334 </varlistentry>
335
336 <varlistentry><term><option>-m</option></term><term><option>--ignore-missing</option></term>
337 <term><option>--fix-missing</option></term>
338 <listitem><para>Ignore missing packages; If packages cannot be retrieved or fail the
339 integrity check after retrieval (corrupted package files), hold back
340 those packages and handle the result. Use of this option together with
341 <option>-f</option> may produce an error in some situations. If a package is
342 selected for installation (particularly if it is mentioned on the
343 command line) and it could not be downloaded then it will be silently
344 held back.
345 Configuration Item: <literal>APT::Get::Fix-Missing</literal>.</para></listitem>
346 </varlistentry>
347
348 <varlistentry><term><option>--no-download</option></term>
349 <listitem><para>Disables downloading of packages. This is best used with
350 <option>--ignore-missing</option> to force APT to use only the .debs it has
351 already downloaded.
352 Configuration Item: <literal>APT::Get::Download</literal>.</para></listitem>
353 </varlistentry>
354
355 <varlistentry><term><option>-q</option></term><term><option>--quiet</option></term>
356 <listitem><para>Quiet; produces output suitable for logging, omitting progress indicators.
357 More q's will produce more quiet up to a maximum of 2. You can also use
358 <option>-q=#</option> to set the quiet level, overriding the configuration file.
359 Note that quiet level 2 implies <option>-y</option>, you should never use -qq
360 without a no-action modifier such as -d, --print-uris or -s as APT may
361 decided to do something you did not expect.
362 Configuration Item: <literal>quiet</literal>.</para></listitem>
363 </varlistentry>
364
365 <varlistentry><term><option>-s</option></term>
366 <term><option>--simulate</option></term>
367 <term><option>--just-print</option></term>
368 <term><option>--dry-run</option></term>
369 <term><option>--recon</option></term>
370 <term><option>--no-act</option></term>
371 <listitem><para>No action; perform a simulation of events that would occur but do not
372 actually change the system.
373 Configuration Item: <literal>APT::Get::Simulate</literal>.</para>
374
375 <para>Simulation run as user will deactivate locking (<literal>Debug::NoLocking</literal>)
376 automatic. Also a notice will be displayed indicating that this is only a simulation,
377 if the option <literal>APT::Get::Show-User-Simulation-Note</literal> is set (Default: true).
378 Neither NoLocking nor the notice will be triggered if run as root (root should know what
379 he is doing without further warnings by <literal>apt-get</literal>).</para>
380
381 <para>Simulate prints out
382 a series of lines each one representing a dpkg operation, Configure (Conf),
383 Remove (Remv), Unpack (Inst). Square brackets indicate broken packages
384 and empty set of square brackets meaning breaks that are of no consequence
385 (rare).</para></listitem>
386 </varlistentry>
387
388 <varlistentry><term><option>-y</option></term><term><option>--yes</option></term>
389 <term><option>--assume-yes</option></term>
390 <listitem><para>Automatic yes to prompts; assume "yes" as answer to all prompts and run
391 non-interactively. If an undesirable situation, such as changing a held
392 package, trying to install a unauthenticated package or removing an essential package
393 occurs then <literal>apt-get</literal> will abort.
394 Configuration Item: <literal>APT::Get::Assume-Yes</literal>.</para></listitem>
395 </varlistentry>
396
397 <varlistentry><term><option>-u</option></term><term><option>--show-upgraded</option></term>
398 <listitem><para>Show upgraded packages; Print out a list of all packages that are to be
399 upgraded.
400 Configuration Item: <literal>APT::Get::Show-Upgraded</literal>.</para></listitem>
401 </varlistentry>
402
403 <varlistentry><term><option>-V</option></term><term><option>--verbose-versions</option></term>
404 <listitem><para>Show full versions for upgraded and installed packages.
405 Configuration Item: <literal>APT::Get::Show-Versions</literal>.</para></listitem>
406 </varlistentry>
407
408 <varlistentry><term><option>-b</option></term><term><option>--compile</option></term>
409 <term><option>--build</option></term>
410 <listitem><para>Compile source packages after downloading them.
411 Configuration Item: <literal>APT::Get::Compile</literal>.</para></listitem>
412 </varlistentry>
413
414 <varlistentry><term><option>--install-recommends</option></term>
415 <listitem><para>Also install recommended packages.</para></listitem>
416 </varlistentry>
417
418 <varlistentry><term><option>--no-install-recommends</option></term>
419 <listitem><para>Do not install recommended packages.</para></listitem>
420 </varlistentry>
421
422 <varlistentry><term><option>--ignore-hold</option></term>
423 <listitem><para>Ignore package Holds; This causes <command>apt-get</command> to ignore a hold
424 placed on a package. This may be useful in conjunction with
425 <literal>dist-upgrade</literal> to override a large number of undesired holds.
426 Configuration Item: <literal>APT::Ignore-Hold</literal>.</para></listitem>
427 </varlistentry>
428
429 <varlistentry><term><option>--no-upgrade</option></term>
430 <listitem><para>Do not upgrade packages; When used in conjunction with <literal>install</literal>,
431 <literal>no-upgrade</literal> will prevent packages on the command line
432 from being upgraded if they are already installed.
433 Configuration Item: <literal>APT::Get::Upgrade</literal>.</para></listitem>
434 </varlistentry>
435
436 <varlistentry><term><option>--only-upgrade</option></term>
437 <listitem><para>Do not install new packages; When used in conjunction with <literal>install</literal>,
438 <literal>only-upgrade</literal> will prevent packages on the command line
439 from being upgraded if they are not already installed.
440 Configuration Item: <literal>APT::Get::Only-Upgrade</literal>.</para></listitem>
441 </varlistentry>
442
443 <varlistentry><term><option>--force-yes</option></term>
444 <listitem><para>Force yes; This is a dangerous option that will cause apt to continue
445 without prompting if it is doing something potentially harmful. It
446 should not be used except in very special situations. Using
447 <literal>force-yes</literal> can potentially destroy your system!
448 Configuration Item: <literal>APT::Get::force-yes</literal>.</para></listitem>
449 </varlistentry>
450
451 <varlistentry><term><option>--print-uris</option></term>
452 <listitem><para>Instead of fetching the files to install their URIs are printed. Each
453 URI will have the path, the destination file name, the size and the expected
454 md5 hash. Note that the file name to write to will not always match
455 the file name on the remote site! This also works with the
456 <literal>source</literal> and <literal>update</literal> commands. When used with the
457 <literal>update</literal> command the MD5 and size are not included, and it is
458 up to the user to decompress any compressed files.
459 Configuration Item: <literal>APT::Get::Print-URIs</literal>.</para></listitem>
460 </varlistentry>
461
462 <varlistentry><term><option>--purge</option></term>
463 <listitem><para>Use purge instead of remove for anything that would be removed.
464 An asterisk ("*") will be displayed next to packages which are
465 scheduled to be purged. <option>remove --purge</option> is equivalent to the
466 <option>purge</option> command.
467 Configuration Item: <literal>APT::Get::Purge</literal>.</para></listitem>
468 </varlistentry>
469
470 <varlistentry><term><option>--reinstall</option></term>
471 <listitem><para>Re-Install packages that are already installed and at the newest version.
472 Configuration Item: <literal>APT::Get::ReInstall</literal>.</para></listitem>
473 </varlistentry>
474
475 <varlistentry><term><option>--list-cleanup</option></term>
476 <listitem><para>This option defaults to on, use <literal>--no-list-cleanup</literal> to turn it
477 off. When on <command>apt-get</command> will automatically manage the contents of
478 <filename>&statedir;/lists</filename> to ensure that obsolete files are erased.
479 The only reason to turn it off is if you frequently change your source
480 list.
481 Configuration Item: <literal>APT::Get::List-Cleanup</literal>.</para></listitem>
482 </varlistentry>
483
484 <varlistentry><term><option>-t</option></term>
485 <term><option>--target-release</option></term>
486 <term><option>--default-release</option></term>
487 <listitem><para>This option controls the default input to the policy engine, it creates
488 a default pin at priority 990 using the specified release string.
489 This overrides the general settings in <filename>/etc/apt/preferences</filename>.
490 Specifically pinned packages are not affected by the value
491 of this option. In short, this option
492 lets you have simple control over which distribution packages will be
493 retrieved from. Some common examples might be
494 <option>-t '2.1*'</option>, <option>-t unstable</option>
495 or <option>-t sid</option>.
496 Configuration Item: <literal>APT::Default-Release</literal>;
497 see also the &apt-preferences; manual page.</para></listitem>
498 </varlistentry>
499
500 <varlistentry><term><option>--trivial-only</option></term>
501 <listitem><para>
502 Only perform operations that are 'trivial'. Logically this can be considered
503 related to <option>--assume-yes</option>, where <option>--assume-yes</option> will answer
504 yes to any prompt, <option>--trivial-only</option> will answer no.
505 Configuration Item: <literal>APT::Get::Trivial-Only</literal>.</para></listitem>
506 </varlistentry>
507
508 <varlistentry><term><option>--no-remove</option></term>
509 <listitem><para>If any packages are to be removed apt-get immediately aborts without
510 prompting.
511 Configuration Item: <literal>APT::Get::Remove</literal>.</para></listitem>
512 </varlistentry>
513
514 <varlistentry><term><option>--auto-remove</option></term>
515 <listitem><para>If the command is either <literal>install</literal> or <literal>remove</literal>,
516 then this option acts like running <literal>autoremove</literal> command, removing the unused
517 dependency packages. Configuration Item: <literal>APT::Get::AutomaticRemove</literal>.
518 </para></listitem>
519 </varlistentry>
520
521 <varlistentry><term><option>--only-source</option></term>
522 <listitem><para>Only has meaning for the
523 <literal>source</literal> and <literal>build-dep</literal>
524 commands. Indicates that the given source names are not to be
525 mapped through the binary table. This means that if this option
526 is specified, these commands will only accept source package
527 names as arguments, rather than accepting binary package names
528 and looking up the corresponding source package. Configuration
529 Item: <literal>APT::Get::Only-Source</literal>.</para></listitem>
530 </varlistentry>
531
532 <varlistentry><term><option>--diff-only</option></term><term><option>--dsc-only</option></term><term><option>--tar-only</option></term>
533 <listitem><para>Download only the diff, dsc, or tar file of a source archive.
534 Configuration Item: <literal>APT::Get::Diff-Only</literal>, <literal>APT::Get::Dsc-Only</literal>, and
535 <literal>APT::Get::Tar-Only</literal>.</para></listitem>
536 </varlistentry>
537
538 <varlistentry><term><option>--arch-only</option></term>
539 <listitem><para>Only process architecture-dependent build-dependencies.
540 Configuration Item: <literal>APT::Get::Arch-Only</literal>.</para></listitem>
541 </varlistentry>
542
543 <varlistentry><term><option>--allow-unauthenticated</option></term>
544 <listitem><para>Ignore if packages can't be authenticated and don't prompt about it.
545 This is useful for tools like pbuilder.
546 Configuration Item: <literal>APT::Get::AllowUnauthenticated</literal>.</para></listitem>
547 </varlistentry>
548
549
550 &apt-commonoptions;
551
552 </variablelist>
553 </refsect1>
554
555 <refsect1><title>Files</title>
556 <variablelist>
557 &file-sourceslist;
558 &file-aptconf;
559 &file-preferences;
560 &file-cachearchives;
561 &file-statelists;
562 </variablelist>
563 </refsect1>
564
565 <refsect1><title>See Also</title>
566 <para>&apt-cache;, &apt-cdrom;, &dpkg;, &dselect;, &sources-list;,
567 &apt-conf;, &apt-config;, &apt-secure;,
568 The APT User's guide in &guidesdir;, &apt-preferences;, the APT Howto.</para>
569 </refsect1>
570
571 <refsect1><title>Diagnostics</title>
572 <para><command>apt-get</command> returns zero on normal operation, decimal 100 on error.</para>
573 </refsect1>
574 <refsect1>
575 <title>ORIGINAL AUTHORS</title>
576 <para>&apt-author.jgunthorpe;</para>
577 </refsect1>
578 <refsect1>
579 <title>CURRENT AUTHORS</title>
580 <para>
581 &apt-author.team;
582 </para>
583 &apt-qapage;
584 </refsect1>
585 &manbugs;
586</refentry>