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1<?xml version="1.0" encoding="utf-8" standalone="no"?>
2<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
3 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
4
5<!ENTITY % aptent SYSTEM "apt.ent">
6%aptent;
7
8]>
9
10<refentry>
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11
12 <refentryinfo>
13 &apt-author.jgunthorpe;
14 &apt-author.team;
15 &apt-email;
16 &apt-product;
17 <!-- The last update date -->
2f0b4b14 18 <date>08 November 2008</date>
5e80de29 19 </refentryinfo>
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20
21 <refmeta>
22 <refentrytitle>apt-get</refentrytitle>
23 <manvolnum>8</manvolnum>
f0599b9c 24 <refmiscinfo class="manual">APT</refmiscinfo>
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25 </refmeta>
26
27 <!-- Man page title -->
28 <refnamediv>
29 <refname>apt-get</refname>
30 <refpurpose>APT package handling utility -- command-line interface</refpurpose>
31 </refnamediv>
32
33 <!-- Arguments -->
34 <refsynopsisdiv>
35 <cmdsynopsis>
36 <command>apt-get</command>
2f0b4b14 37 <arg><option>-sqdyfmubV</option></arg>
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38 <arg>
39 <option>-o=
4a09fd30 40 <replaceable>config_string</replaceable>
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41 </option>
42 </arg>
43 <arg>
44 <option>-c=
45 <replaceable>config_file</replaceable>
46 </option>
47 </arg>
48 <arg>
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49 <option>-t=</option>
50 <arg choice='plain'>
51 <replaceable>target_release</replaceable>
52 </arg>
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53 </arg>
54
24f6490f 55 <group choice="req">
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56 <arg choice='plain'>update</arg>
57 <arg choice='plain'>upgrade</arg>
58 <arg choice='plain'>dselect-upgrade</arg>
2a7f6e97 59 <arg choice='plain'>dist-upgrade</arg>
c74e6100 60 <arg choice='plain'>install
ef48e3ae 61 <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
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62 <arg>
63 <group choice='req'>
64 <arg choice='plain'>
65 =<replaceable>pkg_version_number</replaceable>
66 </arg>
67 <arg choice='plain'>
4fd5ef42 68 /<replaceable>target_release</replaceable>
efc487fb 69 </arg>
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70 </group>
71 </arg>
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72 </arg>
73 </arg>
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74 <arg choice='plain'>remove <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
75 <arg choice='plain'>purge <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
76 <arg choice='plain'>source
ef48e3ae 77 <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
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78 <arg>
79 <group choice='req'>
80 <arg choice='plain'>
81 =<replaceable>pkg_version_number</replaceable>
82 </arg>
83 <arg choice='plain'>
4fd5ef42 84 /<replaceable>target_release</replaceable>
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85 </arg>
86 </group>
87 </arg>
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88 </arg>
89 </arg>
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90 <arg choice='plain'>build-dep <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
91 <arg choice='plain'>check</arg>
92 <arg choice='plain'>clean</arg>
93 <arg choice='plain'>autoclean</arg>
94 <arg choice='plain'>autoremove</arg>
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95 <arg choice='plain'>
96 <group choice='req'>
97 <arg choice='plain'>-v</arg>
98 <arg choice='plain'>--version</arg>
99 </group>
100 </arg>
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101 <arg choice='plain'>
102 <group choice='req'>
103 <arg choice='plain'>-h</arg>
104 <arg choice='plain'>--help</arg>
105 </group>
106 </arg>
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107 </group>
108 </cmdsynopsis>
109 </refsynopsisdiv>
110
111 <refsect1><title>Description</title>
112 <para><command>apt-get</command> is the command-line tool for handling packages, and may be
113 considered the user's "back-end" to other tools using the APT
007aba92 114 library. Several "front-end" interfaces exist, such as &dselect;,
9233ef0d 115 &aptitude;, &synaptic; and &wajig;.</para>
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116
117 <para>Unless the <option>-h</option>, or <option>--help</option> option is given, one of the
118 commands below must be present.</para>
119
120 <variablelist>
121 <varlistentry><term>update</term>
122 <listitem><para><literal>update</literal> is used to resynchronize the package index files from
123 their sources. The indexes of available packages are fetched from the
124 location(s) specified in <filename>/etc/apt/sources.list</filename>.
125 For example, when using a Debian archive, this command retrieves and
126 scans the <filename>Packages.gz</filename> files, so that information about new
127 and updated packages is available. An <literal>update</literal> should always be
128 performed before an <literal>upgrade</literal> or <literal>dist-upgrade</literal>. Please
129 be aware that the overall progress meter will be incorrect as the size
130 of the package files cannot be known in advance.</para></listitem>
131 </varlistentry>
132
133 <varlistentry><term>upgrade</term>
134 <listitem><para><literal>upgrade</literal> is used to install the newest versions of all packages
135 currently installed on the system from the sources enumerated in
136 <filename>/etc/apt/sources.list</filename>. Packages currently installed with
137 new versions available are retrieved and upgraded; under no circumstances
138 are currently installed packages removed, or packages not already installed
139 retrieved and installed. New versions of currently installed packages that
140 cannot be upgraded without changing the install status of another package
141 will be left at their current version. An <literal>update</literal> must be
142 performed first so that <command>apt-get</command> knows that new versions of packages are
143 available.</para></listitem>
144 </varlistentry>
145
146 <varlistentry><term>dselect-upgrade</term>
147 <listitem><para><literal>dselect-upgrade</literal>
148 is used in conjunction with the traditional Debian packaging
149 front-end, &dselect;. <literal>dselect-upgrade</literal>
150 follows the changes made by &dselect; to the <literal>Status</literal>
151 field of available packages, and performs the actions necessary to realize
152 that state (for instance, the removal of old and the installation of new
153 packages).</para></listitem>
154 </varlistentry>
155
156 <varlistentry><term>dist-upgrade</term>
157 <listitem><para><literal>dist-upgrade</literal> in addition to performing the function of
158 <literal>upgrade</literal>, also intelligently handles changing dependencies
159 with new versions of packages; <command>apt-get</command> has a "smart" conflict
160 resolution system, and it will attempt to upgrade the most important
161 packages at the expense of less important ones if necessary.
087a772e 162 So, <literal>dist-upgrade</literal> command may remove some packages.
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163 The <filename>/etc/apt/sources.list</filename> file contains a list of locations
164 from which to retrieve desired package files.
165 See also &apt-preferences; for a mechanism for
166 overriding the general settings for individual packages.</para></listitem>
167 </varlistentry>
168
169 <varlistentry><term>install</term>
2b0de496 170 <listitem>
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171 <para><literal>install</literal> is followed by one or more
172 packages desired for installation or upgrading.
173 Each package is a package name, not a fully qualified
174 filename (for instance, in a Debian GNU/Linux system,
175 libc6 would be the argument provided, not
176 <literal>libc6_1.9.6-2.deb</literal>). All packages required
177 by the package(s) specified for installation will also
178 be retrieved and installed.
179 The <filename>/etc/apt/sources.list</filename> file is
180 used to locate the desired packages. If a hyphen is
181 appended to the package name (with no intervening space),
182 the identified package will be removed if it is installed.
183 Similarly a plus sign can be used to designate a
184 package to install. These latter features may be used
185 to override decisions made by apt-get's conflict
186 resolution system.
187 </para>
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188
189 <para>A specific version of a package can be selected for installation by
190 following the package name with an equals and the version of the package
191 to select. This will cause that version to be located and selected for
192 install. Alternatively a specific distribution can be selected by
193 following the package name with a slash and the version of the
194 distribution or the Archive name (stable, testing, unstable).</para>
195
196 <para>Both of the version selection mechanisms can downgrade packages and must
197 be used with care.</para>
198
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199 <para>This is also the target to use if you want to upgrade one or
200 more already-installed packages without upgrading every package
201 you have on your system. Unlike the "upgrade" target, which
202 installs the newest version of all currently installed packages,
203 "install" will install the newest version of only the package(s)
204 specified. Simply provide the name of the package(s) you wish
205 to upgrade, and if a newer version is available, it (and its
206 dependencies, as described above) will be downloaded and
207 installed.
208 </para>
209
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210 <para>Finally, the &apt-preferences; mechanism allows you to
211 create an alternative installation policy for
212 individual packages.</para>
213
214 <para>If no package matches the given expression and the expression contains one
215 of '.', '?' or '*' then it is assumed to be a POSIX regular expression,
216 and it is applied
217 to all package names in the database. Any matches are then installed (or
218 removed). Note that matching is done by substring so 'lo.*' matches 'how-lo'
219 and 'lowest'. If this is undesired, anchor the regular expression
220 with a '^' or '$' character, or create a more specific regular expression.</para></listitem>
221 </varlistentry>
222
223 <varlistentry><term>remove</term>
224 <listitem><para><literal>remove</literal> is identical to <literal>install</literal> except that packages are
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225 removed instead of installed. Note the removing a package leaves its
226 configuration files in system. If a plus sign is appended to the package
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227 name (with no intervening space), the identified package will be
228 installed instead of removed.</para></listitem>
229 </varlistentry>
230
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231 <varlistentry><term>purge</term>
232 <listitem><para><literal>purge</literal> is identical to <literal>remove</literal> except that packages are
861aa1bd 233 removed and purged (any configuration files are deleted too).</para></listitem>
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234 </varlistentry>
235
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236 <varlistentry><term>source</term>
237 <listitem><para><literal>source</literal> causes <command>apt-get</command> to fetch source packages. APT
238 will examine the available packages to decide which source package to
239 fetch. It will then find and download into the current directory the
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240 newest available version of that source package while respect the
241 default release, set with the option <literal>APT::Default-Release</literal>,
7fa2e810 242 the <option>-t</option> option or per package with the
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243 <literal>pkg/release</literal> syntax, if possible.</para>
244
245 <para>Source packages are tracked separately
246 from binary packages via <literal>deb-src</literal> type lines
247 in the &sources-list; file. This means that you will need to add such a line
248 for each repository you want to get sources from. If you don't do this
249 you will properly get another (newer, older or none) source version than
250 the one you have installed or could install.</para>
251
5f4331c4 252 <para>If the <option>--compile</option> option is specified
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253 then the package will be compiled to a binary .deb using
254 <command>dpkg-buildpackage</command>, if <option>--download-only</option>
255 is specified then the source package will not be unpacked.</para>
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256
257 <para>A specific source version can be retrieved by postfixing the source name
258 with an equals and then the version to fetch, similar to the mechanism
259 used for the package files. This enables exact matching of the source
260 package name and version, implicitly enabling the
261 <literal>APT::Get::Only-Source</literal> option.</para>
262
263 <para>Note that source packages are not tracked like binary packages, they
264 exist only in the current directory and are similar to downloading source
265 tar balls.</para></listitem>
266 </varlistentry>
267
268 <varlistentry><term>build-dep</term>
269 <listitem><para><literal>build-dep</literal> causes apt-get to install/remove packages in an
270 attempt to satisfy the build dependencies for a source package.</para></listitem>
271 </varlistentry>
272
273 <varlistentry><term>check</term>
274 <listitem><para><literal>check</literal> is a diagnostic tool; it updates the package cache and checks
275 for broken dependencies.</para></listitem>
276 </varlistentry>
277
278 <varlistentry><term>clean</term>
279 <listitem><para><literal>clean</literal> clears out the local repository of retrieved package
280 files. It removes everything but the lock file from
281 <filename>&cachedir;/archives/</filename> and
282 <filename>&cachedir;/archives/partial/</filename>. When APT is used as a
283 &dselect; method, <literal>clean</literal> is run automatically.
284 Those who do not use dselect will likely want to run <literal>apt-get clean</literal>
285 from time to time to free up disk space.</para></listitem>
286 </varlistentry>
287
288 <varlistentry><term>autoclean</term>
289 <listitem><para>Like <literal>clean</literal>, <literal>autoclean</literal> clears out the local
290 repository of retrieved package files. The difference is that it only
291 removes package files that can no longer be downloaded, and are largely
292 useless. This allows a cache to be maintained over a long period without
293 it growing out of control. The configuration option
294 <literal>APT::Clean-Installed</literal> will prevent installed packages from being
295 erased if it is set to off.</para></listitem>
296 </varlistentry>
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297
298 <varlistentry><term>autoremove</term>
299 <listitem><para><literal>autoremove</literal> is used to remove packages that were automatically
300 installed to satisfy dependencies for some package and that are no more needed.</para></listitem>
301 </varlistentry>
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302 </variablelist>
303 </refsect1>
304
305 <refsect1><title>options</title>
306 &apt-cmdblurb;
307
308 <variablelist>
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309 <varlistentry><term><option>--no-install-recommends</option></term>
310 <listitem><para>Do not consider recommended packages as a dependency for installing.
311 Configuration Item: <literal>APT::Install-Recommends</literal>.</para></listitem>
312 </varlistentry>
313
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314 <varlistentry><term><option>-d</option></term><term><option>--download-only</option></term>
315 <listitem><para>Download only; package files are only retrieved, not unpacked or installed.
316 Configuration Item: <literal>APT::Get::Download-Only</literal>.</para></listitem>
317 </varlistentry>
318
319 <varlistentry><term><option>-f</option></term><term><option>--fix-broken</option></term>
320 <listitem><para>Fix; attempt to correct a system with broken dependencies in
321 place. This option, when used with install/remove, can omit any packages
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322 to permit APT to deduce a likely solution. If packages are specified,
323 these have to completely correct the problem. The option is sometimes necessary when
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324 running APT for the first time; APT itself does not allow broken package
325 dependencies to exist on a system. It is possible that a system's
326 dependency structure can be so corrupt as to require manual intervention
327 (which usually means using &dselect; or <command>dpkg --remove</command> to eliminate some of
328 the offending packages). Use of this option together with <option>-m</option> may produce an
329 error in some situations.
330 Configuration Item: <literal>APT::Get::Fix-Broken</literal>.</para></listitem>
331 </varlistentry>
332
333 <varlistentry><term><option>-m</option></term><term><option>--ignore-missing</option></term>
334 <term><option>--fix-missing</option></term>
335 <listitem><para>Ignore missing packages; If packages cannot be retrieved or fail the
336 integrity check after retrieval (corrupted package files), hold back
337 those packages and handle the result. Use of this option together with
338 <option>-f</option> may produce an error in some situations. If a package is
339 selected for installation (particularly if it is mentioned on the
340 command line) and it could not be downloaded then it will be silently
341 held back.
342 Configuration Item: <literal>APT::Get::Fix-Missing</literal>.</para></listitem>
343 </varlistentry>
344
345 <varlistentry><term><option>--no-download</option></term>
346 <listitem><para>Disables downloading of packages. This is best used with
347 <option>--ignore-missing</option> to force APT to use only the .debs it has
348 already downloaded.
349 Configuration Item: <literal>APT::Get::Download</literal>.</para></listitem>
350 </varlistentry>
351
352 <varlistentry><term><option>-q</option></term><term><option>--quiet</option></term>
353 <listitem><para>Quiet; produces output suitable for logging, omitting progress indicators.
354 More q's will produce more quiet up to a maximum of 2. You can also use
355 <option>-q=#</option> to set the quiet level, overriding the configuration file.
356 Note that quiet level 2 implies <option>-y</option>, you should never use -qq
357 without a no-action modifier such as -d, --print-uris or -s as APT may
358 decided to do something you did not expect.
359 Configuration Item: <literal>quiet</literal>.</para></listitem>
360 </varlistentry>
361
362 <varlistentry><term><option>-s</option></term>
363 <term><option>--simulate</option></term>
364 <term><option>--just-print</option></term>
365 <term><option>--dry-run</option></term>
366 <term><option>--recon</option></term>
367 <term><option>--no-act</option></term>
368 <listitem><para>No action; perform a simulation of events that would occur but do not
369 actually change the system.
370 Configuration Item: <literal>APT::Get::Simulate</literal>.</para>
371
55a5a46c 372 <para>Simulation run as user will deactivate locking (<literal>Debug::NoLocking</literal>)
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373 automatic. Also a notice will be displayed indicating that this is only a simulation,
374 if the option <literal>APT::Get::Show-User-Simulation-Note</literal> is set (Default: true).
375 Neither NoLocking nor the notice will be triggered if run as root (root should know what
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376 he is doing without further warnings by <literal>apt-get</literal>).</para>
377
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378 <para>Simulate prints out
379 a series of lines each one representing a dpkg operation, Configure (Conf),
5f4331c4 380 Remove (Remv), Unpack (Inst). Square brackets indicate broken packages
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381 and empty set of square brackets meaning breaks that are of no consequence
382 (rare).</para></listitem>
383 </varlistentry>
384
385 <varlistentry><term><option>-y</option></term><term><option>--yes</option></term>
386 <term><option>--assume-yes</option></term>
387 <listitem><para>Automatic yes to prompts; assume "yes" as answer to all prompts and run
388 non-interactively. If an undesirable situation, such as changing a held
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389 package, trying to install a unauthenticated package or removing an essential package
390 occurs then <literal>apt-get</literal> will abort.
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391 Configuration Item: <literal>APT::Get::Assume-Yes</literal>.</para></listitem>
392 </varlistentry>
393
394 <varlistentry><term><option>-u</option></term><term><option>--show-upgraded</option></term>
395 <listitem><para>Show upgraded packages; Print out a list of all packages that are to be
396 upgraded.
397 Configuration Item: <literal>APT::Get::Show-Upgraded</literal>.</para></listitem>
398 </varlistentry>
399
400 <varlistentry><term><option>-V</option></term><term><option>--verbose-versions</option></term>
401 <listitem><para>Show full versions for upgraded and installed packages.
402 Configuration Item: <literal>APT::Get::Show-Versions</literal>.</para></listitem>
403 </varlistentry>
404
405 <varlistentry><term><option>-b</option></term><term><option>--compile</option></term>
406 <term><option>--build</option></term>
407 <listitem><para>Compile source packages after downloading them.
408 Configuration Item: <literal>APT::Get::Compile</literal>.</para></listitem>
409 </varlistentry>
410
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411 <varlistentry><term><option>--install-recommends</option></term>
412 <listitem><para>Also install recommended packages.</para></listitem>
413 </varlistentry>
414
415 <varlistentry><term><option>--no-install-recommends</option></term>
416 <listitem><para>Do not install recommended packages.</para></listitem>
417 </varlistentry>
418
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419 <varlistentry><term><option>--ignore-hold</option></term>
420 <listitem><para>Ignore package Holds; This causes <command>apt-get</command> to ignore a hold
421 placed on a package. This may be useful in conjunction with
422 <literal>dist-upgrade</literal> to override a large number of undesired holds.
423 Configuration Item: <literal>APT::Ignore-Hold</literal>.</para></listitem>
424 </varlistentry>
425
426 <varlistentry><term><option>--no-upgrade</option></term>
427 <listitem><para>Do not upgrade packages; When used in conjunction with <literal>install</literal>,
428 <literal>no-upgrade</literal> will prevent packages on the command line
429 from being upgraded if they are already installed.
430 Configuration Item: <literal>APT::Get::Upgrade</literal>.</para></listitem>
431 </varlistentry>
432
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433 <varlistentry><term><option>--only-upgrade</option></term>
434 <listitem><para>Do not install new packages; When used in conjunction with <literal>install</literal>,
435 <literal>only-upgrade</literal> will prevent packages on the command line
436 from being upgraded if they are not already installed.
437 Configuration Item: <literal>APT::Get::Only-Upgrade</literal>.</para></listitem>
438 </varlistentry>
439
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440 <varlistentry><term><option>--force-yes</option></term>
441 <listitem><para>Force yes; This is a dangerous option that will cause apt to continue
442 without prompting if it is doing something potentially harmful. It
443 should not be used except in very special situations. Using
444 <literal>force-yes</literal> can potentially destroy your system!
445 Configuration Item: <literal>APT::Get::force-yes</literal>.</para></listitem>
446 </varlistentry>
447
448 <varlistentry><term><option>--print-uris</option></term>
449 <listitem><para>Instead of fetching the files to install their URIs are printed. Each
450 URI will have the path, the destination file name, the size and the expected
451 md5 hash. Note that the file name to write to will not always match
452 the file name on the remote site! This also works with the
453 <literal>source</literal> and <literal>update</literal> commands. When used with the
454 <literal>update</literal> command the MD5 and size are not included, and it is
455 up to the user to decompress any compressed files.
456 Configuration Item: <literal>APT::Get::Print-URIs</literal>.</para></listitem>
457 </varlistentry>
458
459 <varlistentry><term><option>--purge</option></term>
460 <listitem><para>Use purge instead of remove for anything that would be removed.
461 An asterisk ("*") will be displayed next to packages which are
5d70f74c 462 scheduled to be purged. <option>remove --purge</option> is equivalent to the
861aa1bd 463 <option>purge</option> command.
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464 Configuration Item: <literal>APT::Get::Purge</literal>.</para></listitem>
465 </varlistentry>
466
467 <varlistentry><term><option>--reinstall</option></term>
468 <listitem><para>Re-Install packages that are already installed and at the newest version.
469 Configuration Item: <literal>APT::Get::ReInstall</literal>.</para></listitem>
470 </varlistentry>
471
472 <varlistentry><term><option>--list-cleanup</option></term>
473 <listitem><para>This option defaults to on, use <literal>--no-list-cleanup</literal> to turn it
474 off. When on <command>apt-get</command> will automatically manage the contents of
475 <filename>&statedir;/lists</filename> to ensure that obsolete files are erased.
476 The only reason to turn it off is if you frequently change your source
477 list.
478 Configuration Item: <literal>APT::Get::List-Cleanup</literal>.</para></listitem>
479 </varlistentry>
480
481 <varlistentry><term><option>-t</option></term>
482 <term><option>--target-release</option></term>
483 <term><option>--default-release</option></term>
484 <listitem><para>This option controls the default input to the policy engine, it creates
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485 a default pin at priority 990 using the specified release string.
486 This overrides the general settings in <filename>/etc/apt/preferences</filename>.
487 Specifically pinned packages are not affected by the value
488 of this option. In short, this option
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489 lets you have simple control over which distribution packages will be
490 retrieved from. Some common examples might be
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491 <option>-t '2.1*'</option>, <option>-t unstable</option>
492 or <option>-t sid</option>.
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493 Configuration Item: <literal>APT::Default-Release</literal>;
494 see also the &apt-preferences; manual page.</para></listitem>
495 </varlistentry>
496
497 <varlistentry><term><option>--trivial-only</option></term>
498 <listitem><para>
499 Only perform operations that are 'trivial'. Logically this can be considered
500 related to <option>--assume-yes</option>, where <option>--assume-yes</option> will answer
501 yes to any prompt, <option>--trivial-only</option> will answer no.
502 Configuration Item: <literal>APT::Get::Trivial-Only</literal>.</para></listitem>
503 </varlistentry>
504
505 <varlistentry><term><option>--no-remove</option></term>
506 <listitem><para>If any packages are to be removed apt-get immediately aborts without
507 prompting.
508 Configuration Item: <literal>APT::Get::Remove</literal>.</para></listitem>
509 </varlistentry>
510
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511 <varlistentry><term><option>--auto-remove</option></term>
512 <listitem><para>If the command is either <literal>install</literal> or <literal>remove</literal>,
513 then this option acts like running <literal>autoremove</literal> command, removing the unused
514 dependency packages. Configuration Item: <literal>APT::Get::AutomaticRemove</literal>.
515 </para></listitem>
516 </varlistentry>
517
24f6490f 518 <varlistentry><term><option>--only-source</option></term>
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519 <listitem><para>Only has meaning for the
520 <literal>source</literal> and <literal>build-dep</literal>
521 commands. Indicates that the given source names are not to be
522 mapped through the binary table. This means that if this option
523 is specified, these commands will only accept source package
524 names as arguments, rather than accepting binary package names
525 and looking up the corresponding source package. Configuration
526 Item: <literal>APT::Get::Only-Source</literal>.</para></listitem>
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527 </varlistentry>
528
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529 <varlistentry><term><option>--diff-only</option></term><term><option>--dsc-only</option></term><term><option>--tar-only</option></term>
530 <listitem><para>Download only the diff, dsc, or tar file of a source archive.
531 Configuration Item: <literal>APT::Get::Diff-Only</literal>, <literal>APT::Get::Dsc-Only</literal>, and
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532 <literal>APT::Get::Tar-Only</literal>.</para></listitem>
533 </varlistentry>
534
535 <varlistentry><term><option>--arch-only</option></term>
536 <listitem><para>Only process architecture-dependent build-dependencies.
537 Configuration Item: <literal>APT::Get::Arch-Only</literal>.</para></listitem>
538 </varlistentry>
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539
540 <varlistentry><term><option>--allow-unauthenticated</option></term>
541 <listitem><para>Ignore if packages can't be authenticated and don't prompt about it.
e3a1f08d 542 This is useful for tools like pbuilder.
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543 Configuration Item: <literal>APT::Get::AllowUnauthenticated</literal>.</para></listitem>
544 </varlistentry>
24f6490f 545
b3d44315 546
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547 &apt-commonoptions;
548
549 </variablelist>
550 </refsect1>
551
552 <refsect1><title>Files</title>
553 <variablelist>
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554 &file-sourceslist;
555 &file-aptconf;
556 &file-preferences;
557 &file-cachearchives;
558 &file-statelists;
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559 </variablelist>
560 </refsect1>
561
562 <refsect1><title>See Also</title>
563 <para>&apt-cache;, &apt-cdrom;, &dpkg;, &dselect;, &sources-list;,
65d71b38 564 &apt-conf;, &apt-config;, &apt-secure;,
4d9fb6b0 565 The APT User's guide in &guidesdir;, &apt-preferences;, the APT Howto.</para>
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566 </refsect1>
567
568 <refsect1><title>Diagnostics</title>
569 <para><command>apt-get</command> returns zero on normal operation, decimal 100 on error.</para>
570 </refsect1>
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571 <refsect1>
572 <title>ORIGINAL AUTHORS</title>
4a09fd30 573 <para>&apt-author.jgunthorpe;</para>
77c9def7 574 </refsect1>
4a09fd30 575 <refsect1>
77c9def7 576 <title>CURRENT AUTHORS</title>
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577 <para>
578 &apt-author.team;
4a09fd30 579 </para>
651001f7 580 &apt-qapage;
4a09fd30 581 </refsect1>
24f6490f 582 &manbugs;
24f6490f 583</refentry>