doc/apt-get.8.xml

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   5 <!ENTITY % aptent SYSTEM "apt.ent">
   6 %aptent;
   7
   8 <!ENTITY % aptverbatiment SYSTEM "apt-verbatim.ent">
   9 %aptverbatiment;
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  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>