apt-get.8.xml 28 KB

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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. <!ENTITY % aptent SYSTEM "apt.ent">
  5. %aptent;
  6. ]>
  7. <refentry>
  8. <refentryinfo>
  9. &apt-author.jgunthorpe;
  10. &apt-author.team;
  11. &apt-email;
  12. &apt-product;
  13. <!-- The last update date -->
  14. <date>08 November 2008</date>
  15. </refentryinfo>
  16. <refmeta>
  17. <refentrytitle>apt-get</refentrytitle>
  18. <manvolnum>8</manvolnum>
  19. <refmiscinfo class="manual">APT</refmiscinfo>
  20. </refmeta>
  21. <!-- Man page title -->
  22. <refnamediv>
  23. <refname>apt-get</refname>
  24. <refpurpose>APT package handling utility -- command-line interface</refpurpose>
  25. </refnamediv>
  26. <!-- Arguments -->
  27. <refsynopsisdiv>
  28. <cmdsynopsis>
  29. <command>apt-get</command>
  30. <arg><option>-sqdyfmubV</option></arg>
  31. <arg>
  32. <option>-o=
  33. <replaceable>config_string</replaceable>
  34. </option>
  35. </arg>
  36. <arg>
  37. <option>-c=
  38. <replaceable>config_file</replaceable>
  39. </option>
  40. </arg>
  41. <arg>
  42. <option>-t=</option>
  43. <group choice='req'>
  44. <arg choice='plain'>
  45. <replaceable>target_release_name</replaceable>
  46. </arg>
  47. <arg choice='plain'>
  48. <replaceable>target_release_number_expression</replaceable>
  49. </arg>
  50. <arg choice='plain'>
  51. <replaceable>target_release_codename</replaceable>
  52. </arg>
  53. </group>
  54. </arg>
  55. <group choice="req">
  56. <arg choice='plain'>update</arg>
  57. <arg choice='plain'>upgrade</arg>
  58. <arg choice='plain'>dselect-upgrade</arg>
  59. <arg choice='plain'>dist-upgrade</arg>
  60. <arg choice='plain'>install
  61. <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
  62. <arg>
  63. <group choice='req'>
  64. <arg choice='plain'>
  65. =<replaceable>pkg_version_number</replaceable>
  66. </arg>
  67. <arg choice='plain'>
  68. /<replaceable>target_release_name</replaceable>
  69. </arg>
  70. <arg choice='plain'>
  71. /<replaceable>target_release_codename</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_name</replaceable>
  88. </arg>
  89. <arg choice='plain'>
  90. /<replaceable>target_release_codename</replaceable>
  91. </arg>
  92. </group>
  93. </arg>
  94. </arg>
  95. </arg>
  96. <arg choice='plain'>build-dep <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
  97. <arg choice='plain'>check</arg>
  98. <arg choice='plain'>clean</arg>
  99. <arg choice='plain'>autoclean</arg>
  100. <arg choice='plain'>autoremove</arg>
  101. <arg choice='plain'>
  102. <group choice='req'>
  103. <arg choice='plain'>-v</arg>
  104. <arg choice='plain'>--version</arg>
  105. </group>
  106. </arg>
  107. <arg choice='plain'>
  108. <group choice='req'>
  109. <arg choice='plain'>-h</arg>
  110. <arg choice='plain'>--help</arg>
  111. </group>
  112. </arg>
  113. </group>
  114. </cmdsynopsis>
  115. </refsynopsisdiv>
  116. <refsect1><title>Description</title>
  117. <para><command>apt-get</command> is the command-line tool for handling packages, and may be
  118. considered the user's "back-end" to other tools using the APT
  119. library. Several "front-end" interfaces exist, such as &dselect;,
  120. &aptitude;, &synaptic;, &gnome-apt; and &wajig;.</para>
  121. <para>Unless the <option>-h</option>, or <option>--help</option> option is given, one of the
  122. commands below must be present.</para>
  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. <varlistentry><term>upgrade</term>
  136. <listitem><para><literal>upgrade</literal> is used to install the newest versions of all packages
  137. currently installed on the system from the sources enumerated in
  138. <filename>/etc/apt/sources.list</filename>. Packages currently installed with
  139. new versions available are retrieved and upgraded; under no circumstances
  140. are currently installed packages removed, or packages not already installed
  141. retrieved and installed. New versions of currently installed packages that
  142. cannot be upgraded without changing the install status of another package
  143. will be left at their current version. An <literal>update</literal> must be
  144. performed first so that <command>apt-get</command> knows that new versions of packages are
  145. available.</para></listitem>
  146. </varlistentry>
  147. <varlistentry><term>dselect-upgrade</term>
  148. <listitem><para><literal>dselect-upgrade</literal>
  149. is used in conjunction with the traditional Debian packaging
  150. front-end, &dselect;. <literal>dselect-upgrade</literal>
  151. follows the changes made by &dselect; to the <literal>Status</literal>
  152. field of available packages, and performs the actions necessary to realize
  153. that state (for instance, the removal of old and the installation of new
  154. packages).</para></listitem>
  155. </varlistentry>
  156. <varlistentry><term>dist-upgrade</term>
  157. <listitem><para><literal>dist-upgrade</literal> in addition to performing the function of
  158. <literal>upgrade</literal>, also intelligently handles changing dependencies
  159. with new versions of packages; <command>apt-get</command> has a "smart" conflict
  160. resolution system, and it will attempt to upgrade the most important
  161. packages at the expense of less important ones if necessary.
  162. So, <literal>dist-upgrade</literal> command may remove some packages.
  163. The <filename>/etc/apt/sources.list</filename> file contains a list of locations
  164. from which to retrieve desired package files.
  165. See also &apt-preferences; for a mechanism for
  166. overriding the general settings for individual packages.</para></listitem>
  167. </varlistentry>
  168. <varlistentry><term>install</term>
  169. <listitem>
  170. <para><literal>install</literal> is followed by one or more
  171. packages desired for installation or upgrading.
  172. Each package is a package name, not a fully qualified
  173. filename (for instance, in a Debian GNU/Linux system,
  174. libc6 would be the argument provided, not
  175. <literal>libc6_1.9.6-2.deb</literal>). All packages required
  176. by the package(s) specified for installation will also
  177. be retrieved and installed.
  178. The <filename>/etc/apt/sources.list</filename> file is
  179. used to locate the desired packages. If a hyphen is
  180. appended to the package name (with no intervening space),
  181. the identified package will be removed if it is installed.
  182. Similarly a plus sign can be used to designate a
  183. package to install. These latter features may be used
  184. to override decisions made by apt-get's conflict
  185. resolution system.
  186. </para>
  187. <para>A specific version of a package can be selected for installation by
  188. following the package name with an equals and the version of the package
  189. to select. This will cause that version to be located and selected for
  190. install. Alternatively a specific distribution can be selected by
  191. following the package name with a slash and the version of the
  192. distribution or the Archive name (stable, testing, unstable).</para>
  193. <para>Both of the version selection mechanisms can downgrade packages and must
  194. be used with care.</para>
  195. <para>This is also the target to use if you want to upgrade one or
  196. more already-installed packages without upgrading every package
  197. you have on your system. Unlike the "upgrade" target, which
  198. installs the newest version of all currently installed packages,
  199. "install" will install the newest version of only the package(s)
  200. specified. Simply provide the name of the package(s) you wish
  201. to upgrade, and if a newer version is available, it (and its
  202. dependencies, as described above) will be downloaded and
  203. installed.
  204. </para>
  205. <para>Finally, the &apt-preferences; mechanism allows you to
  206. create an alternative installation policy for
  207. individual packages.</para>
  208. <para>If no package matches the given expression and the expression contains one
  209. of '.', '?' or '*' then it is assumed to be a POSIX regular expression,
  210. and it is applied
  211. to all package names in the database. Any matches are then installed (or
  212. removed). Note that matching is done by substring so 'lo.*' matches 'how-lo'
  213. and 'lowest'. If this is undesired, anchor the regular expression
  214. with a '^' or '$' character, or create a more specific regular expression.</para></listitem>
  215. </varlistentry>
  216. <varlistentry><term>remove</term>
  217. <listitem><para><literal>remove</literal> is identical to <literal>install</literal> except that packages are
  218. removed instead of installed. Note the removing a package leaves its
  219. configuration files in system. If a plus sign is appended to the package
  220. name (with no intervening space), the identified package will be
  221. installed instead of removed.</para></listitem>
  222. </varlistentry>
  223. <varlistentry><term>purge</term>
  224. <listitem><para><literal>purge</literal> is identical to <literal>remove</literal> except that packages are
  225. removed and purged (any configuration files are deleted too).</para></listitem>
  226. </varlistentry>
  227. <varlistentry><term>source</term>
  228. <listitem><para><literal>source</literal> causes <command>apt-get</command> to fetch source packages. APT
  229. will examine the available packages to decide which source package to
  230. fetch. It will then find and download into the current directory the
  231. newest available version of that source package while respect the
  232. default release, set with the option <literal>APT::Default-Release</literal>,
  233. the <option>-t</option> option or per package with the
  234. <literal>pkg/release</literal> syntax, if possible.</para>
  235. <para>Source packages are tracked separately
  236. from binary packages via <literal>deb-src</literal> type lines
  237. in the &sources-list; file. This means that you will need to add such a line
  238. for each repository you want to get sources from. If you don't do this
  239. you will properly get another (newer, older or none) source version than
  240. the one you have installed or could install.</para>
  241. <para>If the <option>--compile</option> option is specified
  242. then the package will be compiled to a binary .deb using
  243. <command>dpkg-buildpackage</command>, if <option>--download-only</option>
  244. is specified then the source package will not be unpacked.</para>
  245. <para>A specific source version can be retrieved by postfixing the source name
  246. with an equals and then the version to fetch, similar to the mechanism
  247. used for the package files. This enables exact matching of the source
  248. package name and version, implicitly enabling the
  249. <literal>APT::Get::Only-Source</literal> option.</para>
  250. <para>Note that source packages are not tracked like binary packages, they
  251. exist only in the current directory and are similar to downloading source
  252. tar balls.</para></listitem>
  253. </varlistentry>
  254. <varlistentry><term>build-dep</term>
  255. <listitem><para><literal>build-dep</literal> causes apt-get to install/remove packages in an
  256. attempt to satisfy the build dependencies for a source package.</para></listitem>
  257. </varlistentry>
  258. <varlistentry><term>check</term>
  259. <listitem><para><literal>check</literal> is a diagnostic tool; it updates the package cache and checks
  260. for broken dependencies.</para></listitem>
  261. </varlistentry>
  262. <varlistentry><term>clean</term>
  263. <listitem><para><literal>clean</literal> clears out the local repository of retrieved package
  264. files. It removes everything but the lock file from
  265. <filename>&cachedir;/archives/</filename> and
  266. <filename>&cachedir;/archives/partial/</filename>. When APT is used as a
  267. &dselect; method, <literal>clean</literal> is run automatically.
  268. Those who do not use dselect will likely want to run <literal>apt-get clean</literal>
  269. from time to time to free up disk space.</para></listitem>
  270. </varlistentry>
  271. <varlistentry><term>autoclean</term>
  272. <listitem><para>Like <literal>clean</literal>, <literal>autoclean</literal> clears out the local
  273. repository of retrieved package files. The difference is that it only
  274. removes package files that can no longer be downloaded, and are largely
  275. useless. This allows a cache to be maintained over a long period without
  276. it growing out of control. The configuration option
  277. <literal>APT::Clean-Installed</literal> will prevent installed packages from being
  278. erased if it is set to off.</para></listitem>
  279. </varlistentry>
  280. <varlistentry><term>autoremove</term>
  281. <listitem><para><literal>autoremove</literal> is used to remove packages that were automatically
  282. installed to satisfy dependencies for some package and that are no more needed.</para></listitem>
  283. </varlistentry>
  284. </variablelist>
  285. </refsect1>
  286. <refsect1><title>options</title>
  287. &apt-cmdblurb;
  288. <variablelist>
  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. <varlistentry><term><option>-d</option></term><term><option>--download-only</option></term>
  294. <listitem><para>Download only; package files are only retrieved, not unpacked or installed.
  295. Configuration Item: <literal>APT::Get::Download-Only</literal>.</para></listitem>
  296. </varlistentry>
  297. <varlistentry><term><option>-f</option></term><term><option>--fix-broken</option></term>
  298. <listitem><para>Fix; attempt to correct a system with broken dependencies in
  299. place. This option, when used with install/remove, can omit any packages
  300. to permit APT to deduce a likely solution. Any Package that are specified
  301. must completely correct the problem. The option is sometimes necessary when
  302. running APT for the first time; APT itself does not allow broken package
  303. dependencies to exist on a system. It is possible that a system's
  304. dependency structure can be so corrupt as to require manual intervention
  305. (which usually means using &dselect; or <command>dpkg --remove</command> to eliminate some of
  306. the offending packages). Use of this option together with <option>-m</option> may produce an
  307. error in some situations.
  308. Configuration Item: <literal>APT::Get::Fix-Broken</literal>.</para></listitem>
  309. </varlistentry>
  310. <varlistentry><term><option>-m</option></term><term><option>--ignore-missing</option></term>
  311. <term><option>--fix-missing</option></term>
  312. <listitem><para>Ignore missing packages; If packages cannot be retrieved or fail the
  313. integrity check after retrieval (corrupted package files), hold back
  314. those packages and handle the result. Use of this option together with
  315. <option>-f</option> may produce an error in some situations. If a package is
  316. selected for installation (particularly if it is mentioned on the
  317. command line) and it could not be downloaded then it will be silently
  318. held back.
  319. Configuration Item: <literal>APT::Get::Fix-Missing</literal>.</para></listitem>
  320. </varlistentry>
  321. <varlistentry><term><option>--no-download</option></term>
  322. <listitem><para>Disables downloading of packages. This is best used with
  323. <option>--ignore-missing</option> to force APT to use only the .debs it has
  324. already downloaded.
  325. Configuration Item: <literal>APT::Get::Download</literal>.</para></listitem>
  326. </varlistentry>
  327. <varlistentry><term><option>-q</option></term><term><option>--quiet</option></term>
  328. <listitem><para>Quiet; produces output suitable for logging, omitting progress indicators.
  329. More q's will produce more quiet up to a maximum of 2. You can also use
  330. <option>-q=#</option> to set the quiet level, overriding the configuration file.
  331. Note that quiet level 2 implies <option>-y</option>, you should never use -qq
  332. without a no-action modifier such as -d, --print-uris or -s as APT may
  333. decided to do something you did not expect.
  334. Configuration Item: <literal>quiet</literal>.</para></listitem>
  335. </varlistentry>
  336. <varlistentry><term><option>-s</option></term>
  337. <term><option>--simulate</option></term>
  338. <term><option>--just-print</option></term>
  339. <term><option>--dry-run</option></term>
  340. <term><option>--recon</option></term>
  341. <term><option>--no-act</option></term>
  342. <listitem><para>No action; perform a simulation of events that would occur but do not
  343. actually change the system.
  344. Configuration Item: <literal>APT::Get::Simulate</literal>.</para>
  345. <para>Simulation run as user will deactivate locking (<literal>Debug::NoLocking</literal>)
  346. automatic. Also a notice will be displayed indicating that this is only a simulation,
  347. if the option <literal>APT::Get::Show-User-Simulation-Note</literal> is set (Default: true).
  348. Neither NoLocking nor the notice will be triggered if run as root (root should know what
  349. he is doing without further warnings by <literal>apt-get</literal>).</para>
  350. <para>Simulate prints out
  351. a series of lines each one representing a dpkg operation, Configure (Conf),
  352. Remove (Remv), Unpack (Inst). Square brackets indicate broken packages
  353. and empty set of square brackets meaning breaks that are of no consequence
  354. (rare).</para></listitem>
  355. </varlistentry>
  356. <varlistentry><term><option>-y</option></term><term><option>--yes</option></term>
  357. <term><option>--assume-yes</option></term>
  358. <listitem><para>Automatic yes to prompts; assume "yes" as answer to all prompts and run
  359. non-interactively. If an undesirable situation, such as changing a held
  360. package, trying to install a unauthenticated package or removing an essential package
  361. occurs then <literal>apt-get</literal> will abort.
  362. Configuration Item: <literal>APT::Get::Assume-Yes</literal>.</para></listitem>
  363. </varlistentry>
  364. <varlistentry><term><option>-u</option></term><term><option>--show-upgraded</option></term>
  365. <listitem><para>Show upgraded packages; Print out a list of all packages that are to be
  366. upgraded.
  367. Configuration Item: <literal>APT::Get::Show-Upgraded</literal>.</para></listitem>
  368. </varlistentry>
  369. <varlistentry><term><option>-V</option></term><term><option>--verbose-versions</option></term>
  370. <listitem><para>Show full versions for upgraded and installed packages.
  371. Configuration Item: <literal>APT::Get::Show-Versions</literal>.</para></listitem>
  372. </varlistentry>
  373. <varlistentry><term><option>-b</option></term><term><option>--compile</option></term>
  374. <term><option>--build</option></term>
  375. <listitem><para>Compile source packages after downloading them.
  376. Configuration Item: <literal>APT::Get::Compile</literal>.</para></listitem>
  377. </varlistentry>
  378. <varlistentry><term><option>--install-recommends</option></term>
  379. <listitem><para>Also install recommended packages.</para></listitem>
  380. </varlistentry>
  381. <varlistentry><term><option>--no-install-recommends</option></term>
  382. <listitem><para>Do not install recommended packages.</para></listitem>
  383. </varlistentry>
  384. <varlistentry><term><option>--ignore-hold</option></term>
  385. <listitem><para>Ignore package Holds; This causes <command>apt-get</command> to ignore a hold
  386. placed on a package. This may be useful in conjunction with
  387. <literal>dist-upgrade</literal> to override a large number of undesired holds.
  388. Configuration Item: <literal>APT::Ignore-Hold</literal>.</para></listitem>
  389. </varlistentry>
  390. <varlistentry><term><option>--no-upgrade</option></term>
  391. <listitem><para>Do not upgrade packages; When used in conjunction with <literal>install</literal>,
  392. <literal>no-upgrade</literal> will prevent packages on the command line
  393. from being upgraded if they are already installed.
  394. Configuration Item: <literal>APT::Get::Upgrade</literal>.</para></listitem>
  395. </varlistentry>
  396. <varlistentry><term><option>--force-yes</option></term>
  397. <listitem><para>Force yes; This is a dangerous option that will cause apt to continue
  398. without prompting if it is doing something potentially harmful. It
  399. should not be used except in very special situations. Using
  400. <literal>force-yes</literal> can potentially destroy your system!
  401. Configuration Item: <literal>APT::Get::force-yes</literal>.</para></listitem>
  402. </varlistentry>
  403. <varlistentry><term><option>--print-uris</option></term>
  404. <listitem><para>Instead of fetching the files to install their URIs are printed. Each
  405. URI will have the path, the destination file name, the size and the expected
  406. md5 hash. Note that the file name to write to will not always match
  407. the file name on the remote site! This also works with the
  408. <literal>source</literal> and <literal>update</literal> commands. When used with the
  409. <literal>update</literal> command the MD5 and size are not included, and it is
  410. up to the user to decompress any compressed files.
  411. Configuration Item: <literal>APT::Get::Print-URIs</literal>.</para></listitem>
  412. </varlistentry>
  413. <varlistentry><term><option>--purge</option></term>
  414. <listitem><para>Use purge instead of remove for anything that would be removed.
  415. An asterisk ("*") will be displayed next to packages which are
  416. scheduled to be purged. <option>remove --purge</option> is equivalent for
  417. <option>purge</option> command.
  418. Configuration Item: <literal>APT::Get::Purge</literal>.</para></listitem>
  419. </varlistentry>
  420. <varlistentry><term><option>--reinstall</option></term>
  421. <listitem><para>Re-Install packages that are already installed and at the newest version.
  422. Configuration Item: <literal>APT::Get::ReInstall</literal>.</para></listitem>
  423. </varlistentry>
  424. <varlistentry><term><option>--list-cleanup</option></term>
  425. <listitem><para>This option defaults to on, use <literal>--no-list-cleanup</literal> to turn it
  426. off. When on <command>apt-get</command> will automatically manage the contents of
  427. <filename>&statedir;/lists</filename> to ensure that obsolete files are erased.
  428. The only reason to turn it off is if you frequently change your source
  429. list.
  430. Configuration Item: <literal>APT::Get::List-Cleanup</literal>.</para></listitem>
  431. </varlistentry>
  432. <varlistentry><term><option>-t</option></term>
  433. <term><option>--target-release</option></term>
  434. <term><option>--default-release</option></term>
  435. <listitem><para>This option controls the default input to the policy engine, it creates
  436. a default pin at priority 990 using the specified release string.
  437. This overrides the general settings in <filename>/etc/apt/preferences</filename>.
  438. Specifically pinned packages are not affected by the value
  439. of this option. In short, this option
  440. lets you have simple control over which distribution packages will be
  441. retrieved from. Some common examples might be
  442. <option>-t '2.1*'</option>, <option>-t unstable</option>
  443. or <option>-t sid</option>.
  444. Configuration Item: <literal>APT::Default-Release</literal>;
  445. see also the &apt-preferences; manual page.</para></listitem>
  446. </varlistentry>
  447. <varlistentry><term><option>--trivial-only</option></term>
  448. <listitem><para>
  449. Only perform operations that are 'trivial'. Logically this can be considered
  450. related to <option>--assume-yes</option>, where <option>--assume-yes</option> will answer
  451. yes to any prompt, <option>--trivial-only</option> will answer no.
  452. Configuration Item: <literal>APT::Get::Trivial-Only</literal>.</para></listitem>
  453. </varlistentry>
  454. <varlistentry><term><option>--no-remove</option></term>
  455. <listitem><para>If any packages are to be removed apt-get immediately aborts without
  456. prompting.
  457. Configuration Item: <literal>APT::Get::Remove</literal>.</para></listitem>
  458. </varlistentry>
  459. <varlistentry><term><option>--auto-remove</option></term>
  460. <listitem><para>If the command is either <literal>install</literal> or <literal>remove</literal>,
  461. then this option acts like running <literal>autoremove</literal> command, removing the unused
  462. dependency packages. Configuration Item: <literal>APT::Get::AutomaticRemove</literal>.
  463. </para></listitem>
  464. </varlistentry>
  465. <varlistentry><term><option>--only-source</option></term>
  466. <listitem><para>Only has meaning for the
  467. <literal>source</literal> and <literal>build-dep</literal>
  468. commands. Indicates that the given source names are not to be
  469. mapped through the binary table. This means that if this option
  470. is specified, these commands will only accept source package
  471. names as arguments, rather than accepting binary package names
  472. and looking up the corresponding source package. Configuration
  473. Item: <literal>APT::Get::Only-Source</literal>.</para></listitem>
  474. </varlistentry>
  475. <varlistentry><term><option>--diff-only</option></term><term><option>--dsc-only</option></term><term><option>--tar-only</option></term>
  476. <listitem><para>Download only the diff, dsc, or tar file of a source archive.
  477. Configuration Item: <literal>APT::Get::Diff-Only</literal>, <literal>APT::Get::Dsc-Only</literal>, and
  478. <literal>APT::Get::Tar-Only</literal>.</para></listitem>
  479. </varlistentry>
  480. <varlistentry><term><option>--arch-only</option></term>
  481. <listitem><para>Only process architecture-dependent build-dependencies.
  482. Configuration Item: <literal>APT::Get::Arch-Only</literal>.</para></listitem>
  483. </varlistentry>
  484. <varlistentry><term><option>--allow-unauthenticated</option></term>
  485. <listitem><para>Ignore if packages can't be authenticated and don't prompt about it.
  486. This is useful for tools like pbuilder.
  487. Configuration Item: <literal>APT::Get::AllowUnauthenticated</literal>.</para></listitem>
  488. </varlistentry>
  489. &apt-commonoptions;
  490. </variablelist>
  491. </refsect1>
  492. <refsect1><title>Files</title>
  493. <variablelist>
  494. &file-sourceslist;
  495. &file-aptconf;
  496. &file-preferences;
  497. &file-cachearchives;
  498. &file-statelists;
  499. </variablelist>
  500. </refsect1>
  501. <refsect1><title>See Also</title>
  502. <para>&apt-cache;, &apt-cdrom;, &dpkg;, &dselect;, &sources-list;,
  503. &apt-conf;, &apt-config;, &apt-secure;,
  504. The APT User's guide in &guidesdir;, &apt-preferences;, the APT Howto.</para>
  505. </refsect1>
  506. <refsect1><title>Diagnostics</title>
  507. <para><command>apt-get</command> returns zero on normal operation, decimal 100 on error.</para>
  508. </refsect1>
  509. <refsect1>
  510. <title>ORIGINAL AUTHORS</title>
  511. <para>&apt-author.jgunthorpe;</para>
  512. </refsect1>
  513. <refsect1>
  514. <title>CURRENT AUTHORS</title>
  515. <para>
  516. &apt-author.team;
  517. </para>
  518. &apt-qapage;
  519. </refsect1>
  520. &manbugs;
  521. </refentry>