| 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 | <arg> |
| 58 | <option>-a=</option> |
| 59 | <arg choice='plain'> |
| 60 | <replaceable>default_architecture</replaceable> |
| 61 | </arg> |
| 62 | </arg> |
| 63 | |
| 64 | |
| 65 | <group choice="req"> |
| 66 | <arg choice='plain'>update</arg> |
| 67 | <arg choice='plain'>upgrade</arg> |
| 68 | <arg choice='plain'>dselect-upgrade</arg> |
| 69 | <arg choice='plain'>dist-upgrade</arg> |
| 70 | <arg choice='plain'>install |
| 71 | <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable> |
| 72 | <arg> |
| 73 | <group choice='req'> |
| 74 | <arg choice='plain'> |
| 75 | =<replaceable>pkg_version_number</replaceable> |
| 76 | </arg> |
| 77 | <arg choice='plain'> |
| 78 | /<replaceable>target_release</replaceable> |
| 79 | </arg> |
| 80 | </group> |
| 81 | </arg> |
| 82 | </arg> |
| 83 | </arg> |
| 84 | <arg choice='plain'>remove <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg> |
| 85 | <arg choice='plain'>purge <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg> |
| 86 | <arg choice='plain'>source |
| 87 | <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable> |
| 88 | <arg> |
| 89 | <group choice='req'> |
| 90 | <arg choice='plain'> |
| 91 | =<replaceable>pkg_version_number</replaceable> |
| 92 | </arg> |
| 93 | <arg choice='plain'> |
| 94 | /<replaceable>target_release</replaceable> |
| 95 | </arg> |
| 96 | </group> |
| 97 | </arg> |
| 98 | </arg> |
| 99 | </arg> |
| 100 | <arg choice='plain'>build-dep <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg> |
| 101 | <arg choice='plain'>check</arg> |
| 102 | <arg choice='plain'>clean</arg> |
| 103 | <arg choice='plain'>autoclean</arg> |
| 104 | <arg choice='plain'>autoremove</arg> |
| 105 | <arg choice='plain'> |
| 106 | <group choice='req'> |
| 107 | <arg choice='plain'>-v</arg> |
| 108 | <arg choice='plain'>--version</arg> |
| 109 | </group> |
| 110 | </arg> |
| 111 | <arg choice='plain'> |
| 112 | <group choice='req'> |
| 113 | <arg choice='plain'>-h</arg> |
| 114 | <arg choice='plain'>--help</arg> |
| 115 | </group> |
| 116 | </arg> |
| 117 | </group> |
| 118 | </cmdsynopsis> |
| 119 | </refsynopsisdiv> |
| 120 | |
| 121 | <refsect1><title>Description</title> |
| 122 | <para><command>apt-get</command> is the command-line tool for handling packages, and may be |
| 123 | considered the user's "back-end" to other tools using the APT |
| 124 | library. Several "front-end" interfaces exist, such as &dselect;, |
| 125 | &aptitude;, &synaptic; and &wajig;.</para> |
| 126 | |
| 127 | <para>Unless the <option>-h</option>, or <option>--help</option> option is given, one of the |
| 128 | commands below must be present.</para> |
| 129 | |
| 130 | <variablelist> |
| 131 | <varlistentry><term>update</term> |
| 132 | <listitem><para><literal>update</literal> is used to resynchronize the package index files from |
| 133 | their sources. The indexes of available packages are fetched from the |
| 134 | location(s) specified in <filename>/etc/apt/sources.list</filename>. |
| 135 | For example, when using a Debian archive, this command retrieves and |
| 136 | scans the <filename>Packages.gz</filename> files, so that information about new |
| 137 | and updated packages is available. An <literal>update</literal> should always be |
| 138 | performed before an <literal>upgrade</literal> or <literal>dist-upgrade</literal>. Please |
| 139 | be aware that the overall progress meter will be incorrect as the size |
| 140 | of the package files cannot be known in advance.</para></listitem> |
| 141 | </varlistentry> |
| 142 | |
| 143 | <varlistentry><term>upgrade</term> |
| 144 | <listitem><para><literal>upgrade</literal> is used to install the newest versions of all packages |
| 145 | currently installed on the system from the sources enumerated in |
| 146 | <filename>/etc/apt/sources.list</filename>. Packages currently installed with |
| 147 | new versions available are retrieved and upgraded; under no circumstances |
| 148 | are currently installed packages removed, or packages not already installed |
| 149 | retrieved and installed. New versions of currently installed packages that |
| 150 | cannot be upgraded without changing the install status of another package |
| 151 | will be left at their current version. An <literal>update</literal> must be |
| 152 | performed first so that <command>apt-get</command> knows that new versions of packages are |
| 153 | available.</para></listitem> |
| 154 | </varlistentry> |
| 155 | |
| 156 | <varlistentry><term>dselect-upgrade</term> |
| 157 | <listitem><para><literal>dselect-upgrade</literal> |
| 158 | is used in conjunction with the traditional Debian packaging |
| 159 | front-end, &dselect;. <literal>dselect-upgrade</literal> |
| 160 | follows the changes made by &dselect; to the <literal>Status</literal> |
| 161 | field of available packages, and performs the actions necessary to realize |
| 162 | that state (for instance, the removal of old and the installation of new |
| 163 | packages).</para></listitem> |
| 164 | </varlistentry> |
| 165 | |
| 166 | <varlistentry><term>dist-upgrade</term> |
| 167 | <listitem><para><literal>dist-upgrade</literal> in addition to performing the function of |
| 168 | <literal>upgrade</literal>, also intelligently handles changing dependencies |
| 169 | with new versions of packages; <command>apt-get</command> has a "smart" conflict |
| 170 | resolution system, and it will attempt to upgrade the most important |
| 171 | packages at the expense of less important ones if necessary. |
| 172 | So, <literal>dist-upgrade</literal> command may remove some packages. |
| 173 | The <filename>/etc/apt/sources.list</filename> file contains a list of locations |
| 174 | from which to retrieve desired package files. |
| 175 | See also &apt-preferences; for a mechanism for |
| 176 | overriding the general settings for individual packages.</para></listitem> |
| 177 | </varlistentry> |
| 178 | |
| 179 | <varlistentry><term>install</term> |
| 180 | <listitem> |
| 181 | <para><literal>install</literal> is followed by one or more |
| 182 | packages desired for installation or upgrading. |
| 183 | Each package is a package name, not a fully qualified |
| 184 | filename (for instance, in a Debian GNU/Linux system, |
| 185 | libc6 would be the argument provided, not |
| 186 | <literal>libc6_1.9.6-2.deb</literal>). All packages required |
| 187 | by the package(s) specified for installation will also |
| 188 | be retrieved and installed. |
| 189 | The <filename>/etc/apt/sources.list</filename> file is |
| 190 | used to locate the desired packages. If a hyphen is |
| 191 | appended to the package name (with no intervening space), |
| 192 | the identified package will be removed if it is installed. |
| 193 | Similarly a plus sign can be used to designate a |
| 194 | package to install. These latter features may be used |
| 195 | to override decisions made by apt-get's conflict |
| 196 | resolution system. |
| 197 | </para> |
| 198 | |
| 199 | <para>A specific version of a package can be selected for installation by |
| 200 | following the package name with an equals and the version of the package |
| 201 | to select. This will cause that version to be located and selected for |
| 202 | install. Alternatively a specific distribution can be selected by |
| 203 | following the package name with a slash and the version of the |
| 204 | distribution or the Archive name (stable, testing, unstable).</para> |
| 205 | |
| 206 | <para>Both of the version selection mechanisms can downgrade packages and must |
| 207 | be used with care.</para> |
| 208 | |
| 209 | <para>This is also the target to use if you want to upgrade one or |
| 210 | more already-installed packages without upgrading every package |
| 211 | you have on your system. Unlike the "upgrade" target, which |
| 212 | installs the newest version of all currently installed packages, |
| 213 | "install" will install the newest version of only the package(s) |
| 214 | specified. Simply provide the name of the package(s) you wish |
| 215 | to upgrade, and if a newer version is available, it (and its |
| 216 | dependencies, as described above) will be downloaded and |
| 217 | installed. |
| 218 | </para> |
| 219 | |
| 220 | <para>Finally, the &apt-preferences; mechanism allows you to |
| 221 | create an alternative installation policy for |
| 222 | individual packages.</para> |
| 223 | |
| 224 | <para>If no package matches the given expression and the expression contains one |
| 225 | of '.', '?' or '*' then it is assumed to be a POSIX regular expression, |
| 226 | and it is applied |
| 227 | to all package names in the database. Any matches are then installed (or |
| 228 | removed). Note that matching is done by substring so 'lo.*' matches 'how-lo' |
| 229 | and 'lowest'. If this is undesired, anchor the regular expression |
| 230 | with a '^' or '$' character, or create a more specific regular expression.</para></listitem> |
| 231 | </varlistentry> |
| 232 | |
| 233 | <varlistentry><term>remove</term> |
| 234 | <listitem><para><literal>remove</literal> is identical to <literal>install</literal> except that packages are |
| 235 | removed instead of installed. Note the removing a package leaves its |
| 236 | configuration files in system. If a plus sign is appended to the package |
| 237 | name (with no intervening space), the identified package will be |
| 238 | installed instead of removed.</para></listitem> |
| 239 | </varlistentry> |
| 240 | |
| 241 | <varlistentry><term>purge</term> |
| 242 | <listitem><para><literal>purge</literal> is identical to <literal>remove</literal> except that packages are |
| 243 | removed and purged (any configuration files are deleted too).</para></listitem> |
| 244 | </varlistentry> |
| 245 | |
| 246 | <varlistentry><term>source</term> |
| 247 | <listitem><para><literal>source</literal> causes <command>apt-get</command> to fetch source packages. APT |
| 248 | will examine the available packages to decide which source package to |
| 249 | fetch. It will then find and download into the current directory the |
| 250 | newest available version of that source package while respect the |
| 251 | default release, set with the option <literal>APT::Default-Release</literal>, |
| 252 | the <option>-t</option> option or per package with the |
| 253 | <literal>pkg/release</literal> syntax, if possible.</para> |
| 254 | |
| 255 | <para>Source packages are tracked separately |
| 256 | from binary packages via <literal>deb-src</literal> type lines |
| 257 | in the &sources-list; file. This means that you will need to add such a line |
| 258 | for each repository you want to get sources from. If you don't do this |
| 259 | you will properly get another (newer, older or none) source version than |
| 260 | the one you have installed or could install.</para> |
| 261 | |
| 262 | <para>If the <option>--compile</option> option is specified |
| 263 | then the package will be compiled to a binary .deb using |
| 264 | <command>dpkg-buildpackage</command> for the architecture as |
| 265 | defined by the <command>--host-architecture</command> option. |
| 266 | If <option>--download-only</option> is specified then the source package |
| 267 | will not be unpacked.</para> |
| 268 | |
| 269 | <para>A specific source version can be retrieved by postfixing the source name |
| 270 | with an equals and then the version to fetch, similar to the mechanism |
| 271 | used for the package files. This enables exact matching of the source |
| 272 | package name and version, implicitly enabling the |
| 273 | <literal>APT::Get::Only-Source</literal> option.</para> |
| 274 | |
| 275 | <para>Note that source packages are not tracked like binary packages, they |
| 276 | exist only in the current directory and are similar to downloading source |
| 277 | tar balls.</para></listitem> |
| 278 | </varlistentry> |
| 279 | |
| 280 | <varlistentry><term>build-dep</term> |
| 281 | <listitem><para><literal>build-dep</literal> causes apt-get to install/remove packages in an |
| 282 | attempt to satisfy the build dependencies for a source package. By default the dependencies are |
| 283 | satisfied to build the package nativly. If desired a host-architecture can be specified |
| 284 | with the <option>--host-architecture</option> option instead.</para></listitem> |
| 285 | </varlistentry> |
| 286 | |
| 287 | <varlistentry><term>check</term> |
| 288 | <listitem><para><literal>check</literal> is a diagnostic tool; it updates the package cache and checks |
| 289 | for broken dependencies.</para></listitem> |
| 290 | </varlistentry> |
| 291 | |
| 292 | <varlistentry><term>download</term> |
| 293 | <listitem><para><literal>download</literal> will download the given |
| 294 | binary package into the current directory. |
| 295 | </para></listitem> |
| 296 | </varlistentry> |
| 297 | |
| 298 | <varlistentry><term>clean</term> |
| 299 | <listitem><para><literal>clean</literal> clears out the local repository of retrieved package |
| 300 | files. It removes everything but the lock file from |
| 301 | <filename>&cachedir;/archives/</filename> and |
| 302 | <filename>&cachedir;/archives/partial/</filename>. When APT is used as a |
| 303 | &dselect; method, <literal>clean</literal> is run automatically. |
| 304 | Those who do not use dselect will likely want to run <literal>apt-get clean</literal> |
| 305 | from time to time to free up disk space.</para></listitem> |
| 306 | </varlistentry> |
| 307 | |
| 308 | <varlistentry><term>autoclean</term> |
| 309 | <listitem><para>Like <literal>clean</literal>, <literal>autoclean</literal> clears out the local |
| 310 | repository of retrieved package files. The difference is that it only |
| 311 | removes package files that can no longer be downloaded, and are largely |
| 312 | useless. This allows a cache to be maintained over a long period without |
| 313 | it growing out of control. The configuration option |
| 314 | <literal>APT::Clean-Installed</literal> will prevent installed packages from being |
| 315 | erased if it is set to off.</para></listitem> |
| 316 | </varlistentry> |
| 317 | |
| 318 | <varlistentry><term>autoremove</term> |
| 319 | <listitem><para><literal>autoremove</literal> is used to remove packages that were automatically |
| 320 | installed to satisfy dependencies for some package and that are no more needed.</para></listitem> |
| 321 | </varlistentry> |
| 322 | |
| 323 | <varlistentry><term>changelog</term> |
| 324 | <listitem><para><literal>changelog</literal> downloads a package changelog and displays |
| 325 | it through <command>sensible-pager</command>. The server name and base |
| 326 | directory is defined in the <literal>APT::Changelogs::Server</literal> |
| 327 | variable (e. g. <ulink>http://packages.debian.org/changelogs</ulink> for |
| 328 | Debian or <ulink>http://changelogs.ubuntu.com/changelogs</ulink> for |
| 329 | Ubuntu). |
| 330 | By default it displays the changelog for the version that is |
| 331 | installed. However, you can specify the same options as for |
| 332 | the <option>install</option> command. |
| 333 | </para> |
| 334 | </listitem> |
| 335 | </varlistentry> |
| 336 | |
| 337 | |
| 338 | |
| 339 | </variablelist> |
| 340 | </refsect1> |
| 341 | |
| 342 | <refsect1><title>options</title> |
| 343 | &apt-cmdblurb; |
| 344 | |
| 345 | <variablelist> |
| 346 | <varlistentry><term><option>--no-install-recommends</option></term> |
| 347 | <listitem><para>Do not consider recommended packages as a dependency for installing. |
| 348 | Configuration Item: <literal>APT::Install-Recommends</literal>.</para></listitem> |
| 349 | </varlistentry> |
| 350 | |
| 351 | <varlistentry><term><option>--install-suggests</option></term> |
| 352 | <listitem><para>Consider suggested packages as a dependency for installing. |
| 353 | Configuration Item: <literal>APT::Install-Suggests</literal>.</para></listitem> |
| 354 | </varlistentry> |
| 355 | |
| 356 | <varlistentry><term><option>-d</option></term><term><option>--download-only</option></term> |
| 357 | <listitem><para>Download only; package files are only retrieved, not unpacked or installed. |
| 358 | Configuration Item: <literal>APT::Get::Download-Only</literal>.</para></listitem> |
| 359 | </varlistentry> |
| 360 | |
| 361 | <varlistentry><term><option>-f</option></term><term><option>--fix-broken</option></term> |
| 362 | <listitem><para>Fix; attempt to correct a system with broken dependencies in |
| 363 | place. This option, when used with install/remove, can omit any packages |
| 364 | to permit APT to deduce a likely solution. If packages are specified, |
| 365 | these have to completely correct the problem. The option is sometimes necessary when |
| 366 | running APT for the first time; APT itself does not allow broken package |
| 367 | dependencies to exist on a system. It is possible that a system's |
| 368 | dependency structure can be so corrupt as to require manual intervention |
| 369 | (which usually means using &dselect; or <command>dpkg --remove</command> to eliminate some of |
| 370 | the offending packages). Use of this option together with <option>-m</option> may produce an |
| 371 | error in some situations. |
| 372 | Configuration Item: <literal>APT::Get::Fix-Broken</literal>.</para></listitem> |
| 373 | </varlistentry> |
| 374 | |
| 375 | <varlistentry><term><option>-m</option></term><term><option>--ignore-missing</option></term> |
| 376 | <term><option>--fix-missing</option></term> |
| 377 | <listitem><para>Ignore missing packages; If packages cannot be retrieved or fail the |
| 378 | integrity check after retrieval (corrupted package files), hold back |
| 379 | those packages and handle the result. Use of this option together with |
| 380 | <option>-f</option> may produce an error in some situations. If a package is |
| 381 | selected for installation (particularly if it is mentioned on the |
| 382 | command line) and it could not be downloaded then it will be silently |
| 383 | held back. |
| 384 | Configuration Item: <literal>APT::Get::Fix-Missing</literal>.</para></listitem> |
| 385 | </varlistentry> |
| 386 | |
| 387 | <varlistentry><term><option>--no-download</option></term> |
| 388 | <listitem><para>Disables downloading of packages. This is best used with |
| 389 | <option>--ignore-missing</option> to force APT to use only the .debs it has |
| 390 | already downloaded. |
| 391 | Configuration Item: <literal>APT::Get::Download</literal>.</para></listitem> |
| 392 | </varlistentry> |
| 393 | |
| 394 | <varlistentry><term><option>-q</option></term><term><option>--quiet</option></term> |
| 395 | <listitem><para>Quiet; produces output suitable for logging, omitting progress indicators. |
| 396 | More q's will produce more quiet up to a maximum of 2. You can also use |
| 397 | <option>-q=#</option> to set the quiet level, overriding the configuration file. |
| 398 | Note that quiet level 2 implies <option>-y</option>, you should never use -qq |
| 399 | without a no-action modifier such as -d, --print-uris or -s as APT may |
| 400 | decided to do something you did not expect. |
| 401 | Configuration Item: <literal>quiet</literal>.</para></listitem> |
| 402 | </varlistentry> |
| 403 | |
| 404 | <varlistentry><term><option>-s</option></term> |
| 405 | <term><option>--simulate</option></term> |
| 406 | <term><option>--just-print</option></term> |
| 407 | <term><option>--dry-run</option></term> |
| 408 | <term><option>--recon</option></term> |
| 409 | <term><option>--no-act</option></term> |
| 410 | <listitem><para>No action; perform a simulation of events that would occur but do not |
| 411 | actually change the system. |
| 412 | Configuration Item: <literal>APT::Get::Simulate</literal>.</para> |
| 413 | |
| 414 | <para>Simulation run as user will deactivate locking (<literal>Debug::NoLocking</literal>) |
| 415 | automatic. Also a notice will be displayed indicating that this is only a simulation, |
| 416 | if the option <literal>APT::Get::Show-User-Simulation-Note</literal> is set (Default: true). |
| 417 | Neither NoLocking nor the notice will be triggered if run as root (root should know what |
| 418 | he is doing without further warnings by <literal>apt-get</literal>).</para> |
| 419 | |
| 420 | <para>Simulate prints out |
| 421 | a series of lines each one representing a dpkg operation, Configure (Conf), |
| 422 | Remove (Remv), Unpack (Inst). Square brackets indicate broken packages |
| 423 | and empty set of square brackets meaning breaks that are of no consequence |
| 424 | (rare).</para></listitem> |
| 425 | </varlistentry> |
| 426 | |
| 427 | <varlistentry><term><option>-y</option></term><term><option>--yes</option></term> |
| 428 | <term><option>--assume-yes</option></term> |
| 429 | <listitem><para>Automatic yes to prompts; assume "yes" as answer to all prompts and run |
| 430 | non-interactively. If an undesirable situation, such as changing a held |
| 431 | package, trying to install a unauthenticated package or removing an essential package |
| 432 | occurs then <literal>apt-get</literal> will abort. |
| 433 | Configuration Item: <literal>APT::Get::Assume-Yes</literal>.</para></listitem> |
| 434 | </varlistentry> |
| 435 | |
| 436 | <varlistentry><term><option>-u</option></term><term><option>--show-upgraded</option></term> |
| 437 | <listitem><para>Show upgraded packages; Print out a list of all packages that are to be |
| 438 | upgraded. |
| 439 | Configuration Item: <literal>APT::Get::Show-Upgraded</literal>.</para></listitem> |
| 440 | </varlistentry> |
| 441 | |
| 442 | <varlistentry><term><option>-V</option></term><term><option>--verbose-versions</option></term> |
| 443 | <listitem><para>Show full versions for upgraded and installed packages. |
| 444 | Configuration Item: <literal>APT::Get::Show-Versions</literal>.</para></listitem> |
| 445 | </varlistentry> |
| 446 | |
| 447 | <varlistentry><term><option>-a</option></term> |
| 448 | <term><option>--host-architecture</option></term> |
| 449 | <listitem><para>This option controls the architecture packages are built for |
| 450 | by <command>apt-get source --compile</command> and how cross-builddependencies |
| 451 | are satisfied. By default is not set which means that the host architecture |
| 452 | is the same as the build architecture (which is defined by <literal>APT::Architecture</literal>) |
| 453 | Configuration Item: <literal>APT::Get::Host-Architecture</literal> |
| 454 | </para></listitem> |
| 455 | </varlistentry> |
| 456 | |
| 457 | <varlistentry><term><option>-b</option></term><term><option>--compile</option></term> |
| 458 | <term><option>--build</option></term> |
| 459 | <listitem><para>Compile source packages after downloading them. |
| 460 | Configuration Item: <literal>APT::Get::Compile</literal>.</para></listitem> |
| 461 | </varlistentry> |
| 462 | |
| 463 | <varlistentry><term><option>--ignore-hold</option></term> |
| 464 | <listitem><para>Ignore package Holds; This causes <command>apt-get</command> to ignore a hold |
| 465 | placed on a package. This may be useful in conjunction with |
| 466 | <literal>dist-upgrade</literal> to override a large number of undesired holds. |
| 467 | Configuration Item: <literal>APT::Ignore-Hold</literal>.</para></listitem> |
| 468 | </varlistentry> |
| 469 | |
| 470 | <varlistentry><term><option>--no-upgrade</option></term> |
| 471 | <listitem><para>Do not upgrade packages; When used in conjunction with <literal>install</literal>, |
| 472 | <literal>no-upgrade</literal> will prevent packages on the command line |
| 473 | from being upgraded if they are already installed. |
| 474 | Configuration Item: <literal>APT::Get::Upgrade</literal>.</para></listitem> |
| 475 | </varlistentry> |
| 476 | |
| 477 | <varlistentry><term><option>--only-upgrade</option></term> |
| 478 | <listitem><para>Do not install new packages; When used in conjunction with <literal>install</literal>, |
| 479 | <literal>only-upgrade</literal> will prevent packages on the command line |
| 480 | from being upgraded if they are not already installed. |
| 481 | Configuration Item: <literal>APT::Get::Only-Upgrade</literal>.</para></listitem> |
| 482 | </varlistentry> |
| 483 | |
| 484 | <varlistentry><term><option>--force-yes</option></term> |
| 485 | <listitem><para>Force yes; This is a dangerous option that will cause apt to continue |
| 486 | without prompting if it is doing something potentially harmful. It |
| 487 | should not be used except in very special situations. Using |
| 488 | <literal>force-yes</literal> can potentially destroy your system! |
| 489 | Configuration Item: <literal>APT::Get::force-yes</literal>.</para></listitem> |
| 490 | </varlistentry> |
| 491 | |
| 492 | <varlistentry><term><option>--print-uris</option></term> |
| 493 | <listitem><para>Instead of fetching the files to install their URIs are printed. Each |
| 494 | URI will have the path, the destination file name, the size and the expected |
| 495 | md5 hash. Note that the file name to write to will not always match |
| 496 | the file name on the remote site! This also works with the |
| 497 | <literal>source</literal> and <literal>update</literal> commands. When used with the |
| 498 | <literal>update</literal> command the MD5 and size are not included, and it is |
| 499 | up to the user to decompress any compressed files. |
| 500 | Configuration Item: <literal>APT::Get::Print-URIs</literal>.</para></listitem> |
| 501 | </varlistentry> |
| 502 | |
| 503 | <varlistentry><term><option>--purge</option></term> |
| 504 | <listitem><para>Use purge instead of remove for anything that would be removed. |
| 505 | An asterisk ("*") will be displayed next to packages which are |
| 506 | scheduled to be purged. <option>remove --purge</option> is equivalent to the |
| 507 | <option>purge</option> command. |
| 508 | Configuration Item: <literal>APT::Get::Purge</literal>.</para></listitem> |
| 509 | </varlistentry> |
| 510 | |
| 511 | <varlistentry><term><option>--reinstall</option></term> |
| 512 | <listitem><para>Re-Install packages that are already installed and at the newest version. |
| 513 | Configuration Item: <literal>APT::Get::ReInstall</literal>.</para></listitem> |
| 514 | </varlistentry> |
| 515 | |
| 516 | <varlistentry><term><option>--list-cleanup</option></term> |
| 517 | <listitem><para>This option defaults to on, use <literal>--no-list-cleanup</literal> to turn it |
| 518 | off. When on <command>apt-get</command> will automatically manage the contents of |
| 519 | <filename>&statedir;/lists</filename> to ensure that obsolete files are erased. |
| 520 | The only reason to turn it off is if you frequently change your source |
| 521 | list. |
| 522 | Configuration Item: <literal>APT::Get::List-Cleanup</literal>.</para></listitem> |
| 523 | </varlistentry> |
| 524 | |
| 525 | <varlistentry><term><option>-t</option></term> |
| 526 | <term><option>--target-release</option></term> |
| 527 | <term><option>--default-release</option></term> |
| 528 | <listitem><para>This option controls the default input to the policy engine, it creates |
| 529 | a default pin at priority 990 using the specified release string. |
| 530 | This overrides the general settings in <filename>/etc/apt/preferences</filename>. |
| 531 | Specifically pinned packages are not affected by the value |
| 532 | of this option. In short, this option |
| 533 | lets you have simple control over which distribution packages will be |
| 534 | retrieved from. Some common examples might be |
| 535 | <option>-t '2.1*'</option>, <option>-t unstable</option> |
| 536 | or <option>-t sid</option>. |
| 537 | Configuration Item: <literal>APT::Default-Release</literal>; |
| 538 | see also the &apt-preferences; manual page.</para></listitem> |
| 539 | </varlistentry> |
| 540 | |
| 541 | <varlistentry><term><option>--trivial-only</option></term> |
| 542 | <listitem><para> |
| 543 | Only perform operations that are 'trivial'. Logically this can be considered |
| 544 | related to <option>--assume-yes</option>, where <option>--assume-yes</option> will answer |
| 545 | yes to any prompt, <option>--trivial-only</option> will answer no. |
| 546 | Configuration Item: <literal>APT::Get::Trivial-Only</literal>.</para></listitem> |
| 547 | </varlistentry> |
| 548 | |
| 549 | <varlistentry><term><option>--no-remove</option></term> |
| 550 | <listitem><para>If any packages are to be removed apt-get immediately aborts without |
| 551 | prompting. |
| 552 | Configuration Item: <literal>APT::Get::Remove</literal>.</para></listitem> |
| 553 | </varlistentry> |
| 554 | |
| 555 | <varlistentry><term><option>--auto-remove</option></term> |
| 556 | <listitem><para>If the command is either <literal>install</literal> or <literal>remove</literal>, |
| 557 | then this option acts like running <literal>autoremove</literal> command, removing the unused |
| 558 | dependency packages. Configuration Item: <literal>APT::Get::AutomaticRemove</literal>. |
| 559 | </para></listitem> |
| 560 | </varlistentry> |
| 561 | |
| 562 | <varlistentry><term><option>--only-source</option></term> |
| 563 | <listitem><para>Only has meaning for the |
| 564 | <literal>source</literal> and <literal>build-dep</literal> |
| 565 | commands. Indicates that the given source names are not to be |
| 566 | mapped through the binary table. This means that if this option |
| 567 | is specified, these commands will only accept source package |
| 568 | names as arguments, rather than accepting binary package names |
| 569 | and looking up the corresponding source package. Configuration |
| 570 | Item: <literal>APT::Get::Only-Source</literal>.</para></listitem> |
| 571 | </varlistentry> |
| 572 | |
| 573 | <varlistentry><term><option>--diff-only</option></term><term><option>--dsc-only</option></term><term><option>--tar-only</option></term> |
| 574 | <listitem><para>Download only the diff, dsc, or tar file of a source archive. |
| 575 | Configuration Item: <literal>APT::Get::Diff-Only</literal>, <literal>APT::Get::Dsc-Only</literal>, and |
| 576 | <literal>APT::Get::Tar-Only</literal>.</para></listitem> |
| 577 | </varlistentry> |
| 578 | |
| 579 | <varlistentry><term><option>--arch-only</option></term> |
| 580 | <listitem><para>Only process architecture-dependent build-dependencies. |
| 581 | Configuration Item: <literal>APT::Get::Arch-Only</literal>.</para></listitem> |
| 582 | </varlistentry> |
| 583 | |
| 584 | <varlistentry><term><option>--allow-unauthenticated</option></term> |
| 585 | <listitem><para>Ignore if packages can't be authenticated and don't prompt about it. |
| 586 | This is useful for tools like pbuilder. |
| 587 | Configuration Item: <literal>APT::Get::AllowUnauthenticated</literal>.</para></listitem> |
| 588 | </varlistentry> |
| 589 | |
| 590 | |
| 591 | &apt-commonoptions; |
| 592 | |
| 593 | </variablelist> |
| 594 | </refsect1> |
| 595 | |
| 596 | <refsect1><title>Files</title> |
| 597 | <variablelist> |
| 598 | &file-sourceslist; |
| 599 | &file-aptconf; |
| 600 | &file-preferences; |
| 601 | &file-cachearchives; |
| 602 | &file-statelists; |
| 603 | </variablelist> |
| 604 | </refsect1> |
| 605 | |
| 606 | <refsect1><title>See Also</title> |
| 607 | <para>&apt-cache;, &apt-cdrom;, &dpkg;, &dselect;, &sources-list;, |
| 608 | &apt-conf;, &apt-config;, &apt-secure;, |
| 609 | The APT User's guide in &guidesdir;, &apt-preferences;, the APT Howto.</para> |
| 610 | </refsect1> |
| 611 | |
| 612 | <refsect1><title>Diagnostics</title> |
| 613 | <para><command>apt-get</command> returns zero on normal operation, decimal 100 on error.</para> |
| 614 | </refsect1> |
| 615 | <refsect1> |
| 616 | <title>ORIGINAL AUTHORS</title> |
| 617 | <para>&apt-author.jgunthorpe;</para> |
| 618 | </refsect1> |
| 619 | <refsect1> |
| 620 | <title>CURRENT AUTHORS</title> |
| 621 | <para> |
| 622 | &apt-author.team; |
| 623 | </para> |
| 624 | &apt-qapage; |
| 625 | </refsect1> |
| 626 | &manbugs; |
| 627 | </refentry> |