doc/apt-get.8.xml

   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>download</term>
 282        <listitem><para><literal>download</literal> will download the given
 283            binary package into the current directoy.
 284        </para></listitem>
 285      </varlistentry>
 286
 287      <varlistentry><term>clean</term>
 288      <listitem><para><literal>clean</literal> clears out the local repository of retrieved package
 289      files. It removes everything but the lock file from
 290      <filename>&cachedir;/archives/</filename> and
 291      <filename>&cachedir;/archives/partial/</filename>. When APT is used as a
 292      &dselect; method, <literal>clean</literal> is run automatically.
 293      Those who do not use dselect will likely want to run <literal>apt-get clean</literal>
 294      from time to time to free up disk space.</para></listitem>
 295      </varlistentry>
 296
 297      <varlistentry><term>autoclean</term>
 298      <listitem><para>Like <literal>clean</literal>, <literal>autoclean</literal> clears out the local
 299      repository of retrieved package files. The difference is that it only
 300      removes package files that can no longer be downloaded, and are largely
 301      useless. This allows a cache to be maintained over a long period without
 302      it growing out of control. The configuration option
 303      <literal>APT::Clean-Installed</literal> will prevent installed packages from being
 304      erased if it is set to off.</para></listitem>
 305      </varlistentry>
 306
 307      <varlistentry><term>autoremove</term>
 308      <listitem><para><literal>autoremove</literal> is used to remove packages that were automatically
 309      installed to satisfy dependencies for some package and that are no more needed.</para></listitem>
 310      </varlistentry>
 311
 312      <varlistentry><term>changelog</term>
 313        <listitem><para><literal>changelog</literal> downloads a package changelog and displays
 314            it through <command>sensible-pager</command>. The server name and base
 315            directory is defined in the <literal>APT::Changelogs::Server</literal>
 316            variable (e. g. <ulink>http://packages.debian.org/changelogs</ulink> for
 317            Debian or <ulink>http://changelogs.ubuntu.com/changelogs</ulink> for
 318            Ubuntu).
 319            By default it displays the changelog for the version that is
 320            installed.  However, you can specify the same options as for
 321            the <option>install</option> command.
 322          </para>
 323        </listitem>
 324      </varlistentry>
 325
 326
 327
 328    </variablelist>
 329  </refsect1>
 330
 331  <refsect1><title>options</title>
 332    &apt-cmdblurb;
 333
 334    <variablelist>
 335      <varlistentry><term><option>--no-install-recommends</option></term>
 336      <listitem><para>Do not consider recommended packages as a dependency for installing.
 337      Configuration Item: <literal>APT::Install-Recommends</literal>.</para></listitem>
 338      </varlistentry>
 339
 340      <varlistentry><term><option>--install-suggests</option></term>
 341      <listitem><para>Consider suggested packages as a dependency for installing.
 342      Configuration Item: <literal>APT::Install-Suggests</literal>.</para></listitem>
 343      </varlistentry>
 344
 345      <varlistentry><term><option>-d</option></term><term><option>--download-only</option></term>
 346      <listitem><para>Download only; package files are only retrieved, not unpacked or installed.
 347      Configuration Item: <literal>APT::Get::Download-Only</literal>.</para></listitem>
 348      </varlistentry>
 349
 350      <varlistentry><term><option>-f</option></term><term><option>--fix-broken</option></term>
 351      <listitem><para>Fix; attempt to correct a system with broken dependencies in
 352      place. This option, when used with install/remove, can omit any packages
 353      to permit APT to deduce a likely solution. If packages are specified,
 354      these have to completely correct the problem. The option is sometimes necessary when
 355      running APT for the first time; APT itself does not allow broken package
 356      dependencies to exist on a system. It is possible that a system's
 357      dependency structure can be so corrupt as to require manual intervention
 358      (which usually means using &dselect; or <command>dpkg --remove</command> to eliminate some of
 359      the offending packages). Use of this option together with <option>-m</option> may produce an
 360      error in some situations.
 361      Configuration Item: <literal>APT::Get::Fix-Broken</literal>.</para></listitem>
 362      </varlistentry>
 363
 364      <varlistentry><term><option>-m</option></term><term><option>--ignore-missing</option></term>
 365      <term><option>--fix-missing</option></term>
 366      <listitem><para>Ignore missing packages; If packages cannot be retrieved or fail the
 367      integrity check after retrieval (corrupted package files), hold back
 368      those packages and handle the result. Use of this option together with
 369      <option>-f</option> may produce an error in some situations. If a package is
 370      selected for installation (particularly if it is mentioned on the
 371      command line) and it could not be downloaded then it will be silently
 372      held back.
 373      Configuration Item: <literal>APT::Get::Fix-Missing</literal>.</para></listitem>
 374      </varlistentry>
 375
 376      <varlistentry><term><option>--no-download</option></term>
 377      <listitem><para>Disables downloading of packages. This is best used with
 378      <option>--ignore-missing</option> to force APT to use only the .debs it has
 379      already downloaded.
 380      Configuration Item: <literal>APT::Get::Download</literal>.</para></listitem>
 381      </varlistentry>
 382
 383      <varlistentry><term><option>-q</option></term><term><option>--quiet</option></term>
 384      <listitem><para>Quiet; produces output suitable for logging, omitting progress indicators.
 385      More q's will produce more quiet up to a maximum of 2. You can also use
 386      <option>-q=#</option> to set the quiet level, overriding the configuration file.
 387      Note that quiet level 2 implies <option>-y</option>, you should never use -qq
 388      without a no-action modifier such as -d, --print-uris or -s as APT may
 389      decided to do something you did not expect.
 390      Configuration Item: <literal>quiet</literal>.</para></listitem>
 391      </varlistentry>
 392
 393      <varlistentry><term><option>-s</option></term>
 394                    <term><option>--simulate</option></term>
 395                    <term><option>--just-print</option></term>
 396                    <term><option>--dry-run</option></term>
 397                    <term><option>--recon</option></term>
 398                    <term><option>--no-act</option></term>
 399      <listitem><para>No action; perform a simulation of events that would occur but do not
 400      actually change the system.
 401      Configuration Item: <literal>APT::Get::Simulate</literal>.</para>
 402
 403      <para>Simulation run as user will deactivate locking (<literal>Debug::NoLocking</literal>)
 404      automatic. Also a notice will be displayed indicating that this is only a simulation,
 405      if the option <literal>APT::Get::Show-User-Simulation-Note</literal> is set (Default: true).
 406      Neither NoLocking nor the notice will be triggered if run as root (root should know what
 407      he is doing without further warnings by <literal>apt-get</literal>).</para>
 408
 409      <para>Simulate prints out
 410      a series of lines each one representing a dpkg operation, Configure (Conf),
 411      Remove (Remv), Unpack (Inst). Square brackets indicate broken packages
 412      and empty set of square brackets meaning breaks that are of no consequence
 413      (rare).</para></listitem>
 414      </varlistentry>
 415
 416      <varlistentry><term><option>-y</option></term><term><option>--yes</option></term>
 417                    <term><option>--assume-yes</option></term>
 418      <listitem><para>Automatic yes to prompts; assume "yes" as answer to all prompts and run
 419      non-interactively. If an undesirable situation, such as changing a held
 420      package, trying to install a unauthenticated package or removing an essential package
 421      occurs then <literal>apt-get</literal> will abort.
 422      Configuration Item: <literal>APT::Get::Assume-Yes</literal>.</para></listitem>
 423      </varlistentry>
 424
 425      <varlistentry><term><option>-u</option></term><term><option>--show-upgraded</option></term>
 426      <listitem><para>Show upgraded packages; Print out a list of all packages that are to be
 427      upgraded.
 428      Configuration Item: <literal>APT::Get::Show-Upgraded</literal>.</para></listitem>
 429      </varlistentry>
 430
 431      <varlistentry><term><option>-V</option></term><term><option>--verbose-versions</option></term>
 432      <listitem><para>Show full versions for upgraded and installed packages.
 433      Configuration Item: <literal>APT::Get::Show-Versions</literal>.</para></listitem>
 434      </varlistentry>
 435
 436      <varlistentry><term><option>-b</option></term><term><option>--compile</option></term>
 437                    <term><option>--build</option></term>
 438      <listitem><para>Compile source packages after downloading them.
 439      Configuration Item: <literal>APT::Get::Compile</literal>.</para></listitem>
 440      </varlistentry>
 441
 442      <varlistentry><term><option>--ignore-hold</option></term>
 443      <listitem><para>Ignore package Holds; This causes <command>apt-get</command> to ignore a hold
 444      placed on a package. This may be useful in conjunction with
 445      <literal>dist-upgrade</literal> to override a large number of undesired holds.
 446      Configuration Item: <literal>APT::Ignore-Hold</literal>.</para></listitem>
 447      </varlistentry>
 448
 449      <varlistentry><term><option>--no-upgrade</option></term>
 450      <listitem><para>Do not upgrade packages; When used in conjunction with <literal>install</literal>,
 451      <literal>no-upgrade</literal> will prevent packages on the command line
 452      from being upgraded if they are already installed.
 453      Configuration Item: <literal>APT::Get::Upgrade</literal>.</para></listitem>
 454      </varlistentry>
 455
 456      <varlistentry><term><option>--only-upgrade</option></term>
 457      <listitem><para>Do not install new packages; When used in conjunction with <literal>install</literal>,
 458      <literal>only-upgrade</literal> will prevent packages on the command line
 459      from being upgraded if they are not already installed.
 460      Configuration Item: <literal>APT::Get::Only-Upgrade</literal>.</para></listitem>
 461      </varlistentry>
 462
 463      <varlistentry><term><option>--force-yes</option></term>
 464      <listitem><para>Force yes; This is a dangerous option that will cause apt to continue
 465      without prompting if it is doing something potentially harmful. It
 466      should not be used except in very special situations. Using
 467      <literal>force-yes</literal> can potentially destroy your system!
 468      Configuration Item: <literal>APT::Get::force-yes</literal>.</para></listitem>
 469      </varlistentry>
 470
 471      <varlistentry><term><option>--print-uris</option></term>
 472      <listitem><para>Instead of fetching the files to install their URIs are printed. Each
 473      URI will have the path, the destination file name, the size and the expected
 474      md5 hash. Note that the file name to write to will not always match
 475      the file name on the remote site! This also works with the
 476      <literal>source</literal> and <literal>update</literal> commands. When used with the
 477      <literal>update</literal> command the MD5 and size are not included, and it is
 478      up to the user to decompress any compressed files.
 479      Configuration Item: <literal>APT::Get::Print-URIs</literal>.</para></listitem>
 480      </varlistentry>
 481
 482      <varlistentry><term><option>--purge</option></term>
 483      <listitem><para>Use purge instead of remove for anything that would be removed.
 484      An asterisk ("*") will be displayed next to packages which are
 485          scheduled to be purged. <option>remove --purge</option> is equivalent to the
 486          <option>purge</option> command.
 487      Configuration Item: <literal>APT::Get::Purge</literal>.</para></listitem>
 488      </varlistentry>
 489
 490      <varlistentry><term><option>--reinstall</option></term>
 491      <listitem><para>Re-Install packages that are already installed and at the newest version.
 492      Configuration Item: <literal>APT::Get::ReInstall</literal>.</para></listitem>
 493      </varlistentry>
 494
 495      <varlistentry><term><option>--list-cleanup</option></term>
 496      <listitem><para>This option defaults to on, use <literal>--no-list-cleanup</literal> to turn it
 497      off. When on <command>apt-get</command> will automatically manage the contents of
 498      <filename>&statedir;/lists</filename> to ensure that obsolete files are erased.
 499      The only  reason to turn it off is if you frequently change your source
 500      list.
 501      Configuration Item: <literal>APT::Get::List-Cleanup</literal>.</para></listitem>
 502      </varlistentry>
 503
 504      <varlistentry><term><option>-t</option></term>
 505                    <term><option>--target-release</option></term>
 506                    <term><option>--default-release</option></term>
 507      <listitem><para>This option controls the default input to the policy engine, it creates
 508      a default pin at priority 990 using the specified release string.
 509      This overrides the general settings in <filename>/etc/apt/preferences</filename>.
 510      Specifically pinned packages are not affected by the value
 511      of this option. In short, this option
 512      lets you have simple control over which distribution packages will be
 513      retrieved from. Some common examples might be
 514      <option>-t '2.1*'</option>, <option>-t unstable</option>
 515      or <option>-t sid</option>.
 516      Configuration Item: <literal>APT::Default-Release</literal>;
 517      see also the &apt-preferences; manual page.</para></listitem>
 518      </varlistentry>
 519
 520      <varlistentry><term><option>--trivial-only</option></term>
 521      <listitem><para>
 522      Only perform operations that are 'trivial'. Logically this can be considered
 523      related to <option>--assume-yes</option>, where <option>--assume-yes</option> will answer
 524      yes to any prompt, <option>--trivial-only</option> will answer no.
 525      Configuration Item: <literal>APT::Get::Trivial-Only</literal>.</para></listitem>
 526      </varlistentry>
 527
 528      <varlistentry><term><option>--no-remove</option></term>
 529      <listitem><para>If any packages are to be removed apt-get immediately aborts without
 530      prompting.
 531      Configuration Item: <literal>APT::Get::Remove</literal>.</para></listitem>
 532      </varlistentry>
 533
 534      <varlistentry><term><option>--auto-remove</option></term>
 535      <listitem><para>If the command is either <literal>install</literal> or <literal>remove</literal>,
 536      then this option acts like running <literal>autoremove</literal> command, removing the unused
 537      dependency packages. Configuration Item: <literal>APT::Get::AutomaticRemove</literal>.
 538      </para></listitem>
 539      </varlistentry>
 540
 541      <varlistentry><term><option>--only-source</option></term>
 542      <listitem><para>Only has meaning for the
 543      <literal>source</literal> and <literal>build-dep</literal>
 544      commands.  Indicates that the given source names are not to be
 545      mapped through the binary table.  This means that if this option
 546      is specified, these commands will only accept source package
 547      names as arguments, rather than accepting binary package names
 548      and looking up the corresponding source package.  Configuration
 549      Item: <literal>APT::Get::Only-Source</literal>.</para></listitem>
 550      </varlistentry>
 551
 552      <varlistentry><term><option>--diff-only</option></term><term><option>--dsc-only</option></term><term><option>--tar-only</option></term>
 553      <listitem><para>Download only the diff, dsc, or tar file of a source archive.
 554      Configuration Item: <literal>APT::Get::Diff-Only</literal>, <literal>APT::Get::Dsc-Only</literal>, and
 555      <literal>APT::Get::Tar-Only</literal>.</para></listitem>
 556      </varlistentry>
 557
 558      <varlistentry><term><option>--arch-only</option></term>
 559      <listitem><para>Only process architecture-dependent build-dependencies.
 560      Configuration Item: <literal>APT::Get::Arch-Only</literal>.</para></listitem>
 561      </varlistentry>
 562
 563      <varlistentry><term><option>--allow-unauthenticated</option></term>
 564      <listitem><para>Ignore if packages can't be authenticated and don't prompt about it.
 565      This is useful for tools like pbuilder.
 566      Configuration Item: <literal>APT::Get::AllowUnauthenticated</literal>.</para></listitem>
 567      </varlistentry>
 568
 569
 570      &apt-commonoptions;
 571
 572    </variablelist>
 573  </refsect1>
 574
 575  <refsect1><title>Files</title>
 576    <variablelist>
 577      &file-sourceslist;
 578      &file-aptconf;
 579      &file-preferences;
 580      &file-cachearchives;
 581      &file-statelists;
 582    </variablelist>
 583  </refsect1>
 584
 585  <refsect1><title>See Also</title>
 586    <para>&apt-cache;, &apt-cdrom;, &dpkg;, &dselect;, &sources-list;,
 587    &apt-conf;, &apt-config;, &apt-secure;,
 588    The APT User's guide in &guidesdir;, &apt-preferences;, the APT Howto.</para>
 589  </refsect1>
 590
 591  <refsect1><title>Diagnostics</title>
 592    <para><command>apt-get</command> returns zero on normal operation, decimal 100 on error.</para>
 593  </refsect1>
 594  <refsect1>
 595          <title>ORIGINAL AUTHORS</title>
 596          <para>&apt-author.jgunthorpe;</para>
 597  </refsect1>
 598  <refsect1>
 599          <title>CURRENT AUTHORS</title>
 600          <para>
 601                  &apt-author.team;
 602          </para>
 603                  &apt-qapage;
 604  </refsect1>
 605  &manbugs;
 606 </refentry>