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1 | <?xml version="1.0" encoding="utf-8" standalone="no"?> | |
2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" | |
3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ | |
4 | ||
5 | <!ENTITY % aptent SYSTEM "apt.ent"> | |
6 | %aptent; | |
7 | ||
8 | <!ENTITY % aptverbatiment SYSTEM "apt-verbatim.ent"> | |
9 | %aptverbatiment; | |
10 | ||
11 | <!ENTITY % aptvendor SYSTEM "apt-vendor.ent"> | |
12 | %aptvendor; | |
13 | ]> | |
14 | ||
15 | <refentry> | |
16 | ||
17 | <refentryinfo> | |
18 | &apt-author.jgunthorpe; | |
19 | &apt-author.team; | |
20 | &apt-email; | |
21 | &apt-product; | |
22 | <!-- The last update date --> | |
23 | <date>2012-06-09T00:00:00Z</date> | |
24 | </refentryinfo> | |
25 | ||
26 | <refmeta> | |
27 | <refentrytitle>apt-get</refentrytitle> | |
28 | <manvolnum>8</manvolnum> | |
29 | <refmiscinfo class="manual">APT</refmiscinfo> | |
30 | </refmeta> | |
31 | ||
32 | <!-- Man page title --> | |
33 | <refnamediv> | |
34 | <refname>apt-get</refname> | |
35 | <refpurpose>APT package handling utility -- command-line interface</refpurpose> | |
36 | </refnamediv> | |
37 | ||
38 | &synopsis-command-apt-get; | |
39 | ||
40 | <refsect1><title>Description</title> | |
41 | <para><command>apt-get</command> is the command-line tool for handling packages, and may be | |
42 | considered the user's "back-end" to other tools using the APT | |
43 | library. Several "front-end" interfaces exist, such as &dselect;, | |
44 | &aptitude;, &synaptic; and &wajig;.</para> | |
45 | ||
46 | <para>Unless the <option>-h</option>, or <option>--help</option> option is given, one of the | |
47 | commands below must be present.</para> | |
48 | ||
49 | <variablelist> | |
50 | <varlistentry><term><option>update</option></term> | |
51 | <listitem><para><literal>update</literal> is used to resynchronize the package index files from | |
52 | their sources. The indexes of available packages are fetched from the | |
53 | location(s) specified in <filename>/etc/apt/sources.list</filename>. | |
54 | For example, when using a Debian archive, this command retrieves and | |
55 | scans the <filename>Packages.gz</filename> files, so that information about new | |
56 | and updated packages is available. An <literal>update</literal> should always be | |
57 | performed before an <literal>upgrade</literal> or <literal>dist-upgrade</literal>. Please | |
58 | be aware that the overall progress meter will be incorrect as the size | |
59 | of the package files cannot be known in advance.</para></listitem> | |
60 | </varlistentry> | |
61 | ||
62 | <varlistentry><term><option>upgrade</option></term> | |
63 | <listitem><para><literal>upgrade</literal> is used to install the newest versions of all packages | |
64 | currently installed on the system from the sources enumerated in | |
65 | <filename>/etc/apt/sources.list</filename>. Packages currently installed with | |
66 | new versions available are retrieved and upgraded; under no circumstances | |
67 | are currently installed packages removed, or packages not already installed | |
68 | retrieved and installed. New versions of currently installed packages that | |
69 | cannot be upgraded without changing the install status of another package | |
70 | will be left at their current version. An <literal>update</literal> must be | |
71 | performed first so that <command>apt-get</command> knows that new versions of packages are | |
72 | available.</para></listitem> | |
73 | </varlistentry> | |
74 | ||
75 | <varlistentry><term><option>dist-upgrade</option></term> | |
76 | <listitem><para><literal>dist-upgrade</literal> in addition to performing the function of | |
77 | <literal>upgrade</literal>, also intelligently handles changing dependencies | |
78 | with new versions of packages; <command>apt-get</command> has a "smart" conflict | |
79 | resolution system, and it will attempt to upgrade the most important | |
80 | packages at the expense of less important ones if necessary. | |
81 | The <literal>dist-upgrade</literal> command may therefore remove some packages. | |
82 | The <filename>/etc/apt/sources.list</filename> file contains a list of locations | |
83 | from which to retrieve desired package files. | |
84 | See also &apt-preferences; for a mechanism for | |
85 | overriding the general settings for individual packages.</para></listitem> | |
86 | </varlistentry> | |
87 | ||
88 | <varlistentry><term><option>dselect-upgrade</option></term> | |
89 | <listitem><para><literal>dselect-upgrade</literal> | |
90 | is used in conjunction with the traditional Debian packaging | |
91 | front-end, &dselect;. <literal>dselect-upgrade</literal> | |
92 | follows the changes made by &dselect; to the <literal>Status</literal> | |
93 | field of available packages, and performs the actions necessary to realize | |
94 | that state (for instance, the removal of old and the installation of new | |
95 | packages).</para></listitem> | |
96 | </varlistentry> | |
97 | ||
98 | <varlistentry><term><option>install</option></term> | |
99 | <listitem> | |
100 | <para><literal>install</literal> is followed by one or more | |
101 | packages desired for installation or upgrading. | |
102 | Each package is a package name, not a fully qualified | |
103 | filename (for instance, in a Debian system, | |
104 | <package>apt-utils</package> would be the argument provided, not | |
105 | <filename>apt-utils_&apt-product-version;_amd64.deb</filename>). All packages required | |
106 | by the package(s) specified for installation will also | |
107 | be retrieved and installed. | |
108 | The <filename>/etc/apt/sources.list</filename> file is | |
109 | used to locate the desired packages. If a hyphen is | |
110 | appended to the package name (with no intervening space), | |
111 | the identified package will be removed if it is installed. | |
112 | Similarly a plus sign can be used to designate a | |
113 | package to install. These latter features may be used | |
114 | to override decisions made by apt-get's conflict | |
115 | resolution system. | |
116 | </para> | |
117 | ||
118 | <para>A specific version of a package can be selected for installation by | |
119 | following the package name with an equals and the version of the package | |
120 | to select. This will cause that version to be located and selected for | |
121 | install. Alternatively a specific distribution can be selected by | |
122 | following the package name with a slash and the version of the | |
123 | distribution or the Archive name (stable, testing, unstable).</para> | |
124 | ||
125 | <para>Both of the version selection mechanisms can downgrade packages and must | |
126 | be used with care.</para> | |
127 | ||
128 | <para>This is also the target to use if you want to upgrade one or | |
129 | more already-installed packages without upgrading every package | |
130 | you have on your system. Unlike the "upgrade" target, which | |
131 | installs the newest version of all currently installed packages, | |
132 | "install" will install the newest version of only the package(s) | |
133 | specified. Simply provide the name of the package(s) you wish | |
134 | to upgrade, and if a newer version is available, it (and its | |
135 | dependencies, as described above) will be downloaded and | |
136 | installed. | |
137 | </para> | |
138 | ||
139 | <para>Finally, the &apt-preferences; mechanism allows you to | |
140 | create an alternative installation policy for | |
141 | individual packages.</para> | |
142 | ||
143 | <para>If no package matches the given expression and the expression contains one | |
144 | of '.', '?' or '*' then it is assumed to be a POSIX regular expression, | |
145 | and it is applied | |
146 | to all package names in the database. Any matches are then installed (or | |
147 | removed). Note that matching is done by substring so 'lo.*' matches 'how-lo' | |
148 | and 'lowest'. If this is undesired, anchor the regular expression | |
149 | with a '^' or '$' character, or create a more specific regular expression.</para></listitem> | |
150 | </varlistentry> | |
151 | ||
152 | <varlistentry><term><option>remove</option></term> | |
153 | <listitem><para><literal>remove</literal> is identical to <literal>install</literal> except that packages are | |
154 | removed instead of installed. Note that removing a package leaves its | |
155 | configuration files on the system. If a plus sign is appended to the package | |
156 | name (with no intervening space), the identified package will be | |
157 | installed instead of removed.</para></listitem> | |
158 | </varlistentry> | |
159 | ||
160 | <varlistentry><term><option>purge</option></term> | |
161 | <listitem><para><literal>purge</literal> is identical to <literal>remove</literal> except that packages are | |
162 | removed and purged (any configuration files are deleted too).</para></listitem> | |
163 | </varlistentry> | |
164 | ||
165 | <varlistentry><term><option>source</option></term> | |
166 | <listitem><para><literal>source</literal> causes <command>apt-get</command> to fetch source packages. APT | |
167 | will examine the available packages to decide which source package to | |
168 | fetch. It will then find and download into the current directory the | |
169 | newest available version of that source package while respecting the | |
170 | default release, set with the option <literal>APT::Default-Release</literal>, | |
171 | the <option>-t</option> option or per package with the | |
172 | <literal>pkg/release</literal> syntax, if possible.</para> | |
173 | ||
174 | <para>Source packages are tracked separately | |
175 | from binary packages via <literal>deb-src</literal> lines | |
176 | in the &sources-list; file. This means that you will need to add such a line | |
177 | for each repository you want to get sources from; otherwise you will probably | |
178 | get either the wrong (too old/too new) source versions or none at all.</para> | |
179 | ||
180 | <para>If the <option>--compile</option> option is specified | |
181 | then the package will be compiled to a binary .deb using | |
182 | <command>dpkg-buildpackage</command> for the architecture as | |
183 | defined by the <command>--host-architecture</command> option. | |
184 | If <option>--download-only</option> is specified then the source package | |
185 | will not be unpacked.</para> | |
186 | ||
187 | <para>A specific source version can be retrieved by postfixing the source name | |
188 | with an equals and then the version to fetch, similar to the mechanism | |
189 | used for the package files. This enables exact matching of the source | |
190 | package name and version, implicitly enabling the | |
191 | <literal>APT::Get::Only-Source</literal> option.</para> | |
192 | ||
193 | <para>Note that source packages are not installed and tracked in the | |
194 | <command>dpkg</command> database like binary packages; they are simply downloaded | |
195 | to the current directory, like source tarballs.</para></listitem> | |
196 | </varlistentry> | |
197 | ||
198 | <varlistentry><term><option>build-dep</option></term> | |
199 | <listitem><para><literal>build-dep</literal> causes apt-get to install/remove packages in an | |
200 | attempt to satisfy the build dependencies for a source package. By default the dependencies are | |
201 | satisfied to build the package natively. If desired a host-architecture can be specified | |
202 | with the <option>--host-architecture</option> option instead.</para></listitem> | |
203 | </varlistentry> | |
204 | ||
205 | <varlistentry><term><option>check</option></term> | |
206 | <listitem><para><literal>check</literal> is a diagnostic tool; it updates the package cache and checks | |
207 | for broken dependencies.</para></listitem> | |
208 | </varlistentry> | |
209 | ||
210 | <varlistentry><term><option>download</option></term> | |
211 | <listitem><para><literal>download</literal> will download the given | |
212 | binary package into the current directory. | |
213 | </para></listitem> | |
214 | </varlistentry> | |
215 | ||
216 | <varlistentry><term><option>clean</option></term> | |
217 | <listitem><para><literal>clean</literal> clears out the local repository of retrieved package | |
218 | files. It removes everything but the lock file from | |
219 | <filename>&cachedir;/archives/</filename> and | |
220 | <filename>&cachedir;/archives/partial/</filename>. When APT is used as a | |
221 | &dselect; method, <literal>clean</literal> is run automatically. | |
222 | Those who do not use dselect will likely want to run <literal>apt-get clean</literal> | |
223 | from time to time to free up disk space.</para></listitem> | |
224 | </varlistentry> | |
225 | ||
226 | <varlistentry><term><option>autoclean</option></term> | |
227 | <listitem><para>Like <literal>clean</literal>, <literal>autoclean</literal> clears out the local | |
228 | repository of retrieved package files. The difference is that it only | |
229 | removes package files that can no longer be downloaded, and are largely | |
230 | useless. This allows a cache to be maintained over a long period without | |
231 | it growing out of control. The configuration option | |
232 | <literal>APT::Clean-Installed</literal> will prevent installed packages from being | |
233 | erased if it is set to off.</para></listitem> | |
234 | </varlistentry> | |
235 | ||
236 | <varlistentry><term><option>autoremove</option></term> | |
237 | <listitem><para><literal>autoremove</literal> is used to remove packages that were automatically | |
238 | installed to satisfy dependencies for other packages and are now no longer needed.</para></listitem> | |
239 | </varlistentry> | |
240 | ||
241 | <varlistentry><term><option>changelog</option></term> | |
242 | <listitem><para><literal>changelog</literal> downloads a package changelog and displays | |
243 | it through <command>sensible-pager</command>. The server name and base | |
244 | directory is defined in the <literal>APT::Changelogs::Server</literal> | |
245 | variable (e.g. <ulink url="http://packages.debian.org/changelogs">packages.debian.org/changelogs</ulink> for | |
246 | Debian or <ulink url="http://changelogs.ubuntu.com/changelogs">changelogs.ubuntu.com/changelogs</ulink> for | |
247 | Ubuntu). | |
248 | By default it displays the changelog for the version that is | |
249 | installed. However, you can specify the same options as for | |
250 | the <option>install</option> command. | |
251 | </para> | |
252 | </listitem> | |
253 | </varlistentry> | |
254 | ||
255 | ||
256 | ||
257 | </variablelist> | |
258 | </refsect1> | |
259 | ||
260 | <refsect1><title>options</title> | |
261 | &apt-cmdblurb; | |
262 | ||
263 | <variablelist> | |
264 | <varlistentry><term><option>--no-install-recommends</option></term> | |
265 | <listitem><para>Do not consider recommended packages as a dependency for installing. | |
266 | Configuration Item: <literal>APT::Install-Recommends</literal>.</para></listitem> | |
267 | </varlistentry> | |
268 | ||
269 | <varlistentry><term><option>--install-suggests</option></term> | |
270 | <listitem><para>Consider suggested packages as a dependency for installing. | |
271 | Configuration Item: <literal>APT::Install-Suggests</literal>.</para></listitem> | |
272 | </varlistentry> | |
273 | ||
274 | <varlistentry><term><option>-d</option></term><term><option>--download-only</option></term> | |
275 | <listitem><para>Download only; package files are only retrieved, not unpacked or installed. | |
276 | Configuration Item: <literal>APT::Get::Download-Only</literal>.</para></listitem> | |
277 | </varlistentry> | |
278 | ||
279 | <varlistentry><term><option>-f</option></term><term><option>--fix-broken</option></term> | |
280 | <listitem><para>Fix; attempt to correct a system with broken dependencies in | |
281 | place. This option, when used with install/remove, can omit any packages | |
282 | to permit APT to deduce a likely solution. If packages are specified, | |
283 | these have to completely correct the problem. The option is sometimes necessary when | |
284 | running APT for the first time; APT itself does not allow broken package | |
285 | dependencies to exist on a system. It is possible that a system's | |
286 | dependency structure can be so corrupt as to require manual intervention | |
287 | (which usually means using &dselect; or <command>dpkg --remove</command> to eliminate some of | |
288 | the offending packages). Use of this option together with <option>-m</option> may produce an | |
289 | error in some situations. | |
290 | Configuration Item: <literal>APT::Get::Fix-Broken</literal>.</para></listitem> | |
291 | </varlistentry> | |
292 | ||
293 | <varlistentry><term><option>-m</option></term><term><option>--ignore-missing</option></term> | |
294 | <term><option>--fix-missing</option></term> | |
295 | <listitem><para>Ignore missing packages; if packages cannot be retrieved or fail the | |
296 | integrity check after retrieval (corrupted package files), hold back | |
297 | those packages and handle the result. Use of this option together with | |
298 | <option>-f</option> may produce an error in some situations. If a package is | |
299 | selected for installation (particularly if it is mentioned on the | |
300 | command line) and it could not be downloaded then it will be silently | |
301 | held back. | |
302 | Configuration Item: <literal>APT::Get::Fix-Missing</literal>.</para></listitem> | |
303 | </varlistentry> | |
304 | ||
305 | <varlistentry><term><option>--no-download</option></term> | |
306 | <listitem><para>Disables downloading of packages. This is best used with | |
307 | <option>--ignore-missing</option> to force APT to use only the .debs it has | |
308 | already downloaded. | |
309 | Configuration Item: <literal>APT::Get::Download</literal>.</para></listitem> | |
310 | </varlistentry> | |
311 | ||
312 | <varlistentry><term><option>-q</option></term><term><option>--quiet</option></term> | |
313 | <listitem><para>Quiet; produces output suitable for logging, omitting progress indicators. | |
314 | More q's will produce more quiet up to a maximum of 2. You can also use | |
315 | <option>-q=#</option> to set the quiet level, overriding the configuration file. | |
316 | Note that quiet level 2 implies <option>-y</option>; you should never use -qq | |
317 | without a no-action modifier such as -d, --print-uris or -s as APT may | |
318 | decide to do something you did not expect. | |
319 | Configuration Item: <literal>quiet</literal>.</para></listitem> | |
320 | </varlistentry> | |
321 | ||
322 | <varlistentry><term><option>-s</option></term> | |
323 | <term><option>--simulate</option></term> | |
324 | <term><option>--just-print</option></term> | |
325 | <term><option>--dry-run</option></term> | |
326 | <term><option>--recon</option></term> | |
327 | <term><option>--no-act</option></term> | |
328 | <listitem><para>No action; perform a simulation of events that would occur but do not | |
329 | actually change the system. | |
330 | Configuration Item: <literal>APT::Get::Simulate</literal>.</para> | |
331 | ||
332 | <para>Simulated runs performed as a user will automatically deactivate locking | |
333 | (<literal>Debug::NoLocking</literal>), and if the option | |
334 | <literal>APT::Get::Show-User-Simulation-Note</literal> is set | |
335 | (as it is by default) a notice will also be displayed indicating that | |
336 | this is only a simulation. Runs performed as root do not trigger either | |
337 | NoLocking or the notice - superusers should know what they are doing | |
338 | without further warnings from <literal>apt-get</literal>.</para> | |
339 | ||
340 | <para>Simulated runs print out a series of lines, each representing a <command>dpkg</command> | |
341 | operation: configure (<literal>Conf</literal>), remove (<literal>Remv</literal>) | |
342 | or unpack (<literal>Inst</literal>). Square brackets indicate broken packages, and | |
343 | empty square brackets indicate breaks that are of no consequence (rare).</para></listitem> | |
344 | </varlistentry> | |
345 | ||
346 | <varlistentry><term><option>-y</option></term><term><option>--yes</option></term> | |
347 | <term><option>--assume-yes</option></term> | |
348 | <listitem><para>Automatic yes to prompts; assume "yes" as answer to all prompts and run | |
349 | non-interactively. If an undesirable situation, such as changing a held | |
350 | package, trying to install a unauthenticated package or removing an essential package | |
351 | occurs then <literal>apt-get</literal> will abort. | |
352 | Configuration Item: <literal>APT::Get::Assume-Yes</literal>.</para></listitem> | |
353 | </varlistentry> | |
354 | ||
355 | <varlistentry><term><option>--assume-no</option></term> | |
356 | <listitem><para>Automatic "no" to all prompts. | |
357 | Configuration Item: <literal>APT::Get::Assume-No</literal>.</para></listitem> | |
358 | </varlistentry> | |
359 | ||
360 | <varlistentry><term><option>-u</option></term><term><option>--show-upgraded</option></term> | |
361 | <listitem><para>Show upgraded packages; print out a list of all packages that are to be | |
362 | upgraded. | |
363 | Configuration Item: <literal>APT::Get::Show-Upgraded</literal>.</para></listitem> | |
364 | </varlistentry> | |
365 | ||
366 | <varlistentry><term><option>-V</option></term><term><option>--verbose-versions</option></term> | |
367 | <listitem><para>Show full versions for upgraded and installed packages. | |
368 | Configuration Item: <literal>APT::Get::Show-Versions</literal>.</para></listitem> | |
369 | </varlistentry> | |
370 | ||
371 | <varlistentry><term><option>-a</option></term> | |
372 | <term><option>--host-architecture</option></term> | |
373 | <listitem><para>This option controls the architecture packages are built for | |
374 | by <command>apt-get source --compile</command> and how cross-builddependencies | |
375 | are satisfied. By default is it not set which means that the host architecture | |
376 | is the same as the build architecture (which is defined by <literal>APT::Architecture</literal>). | |
377 | Configuration Item: <literal>APT::Get::Host-Architecture</literal> | |
378 | </para></listitem> | |
379 | </varlistentry> | |
380 | ||
381 | <varlistentry><term><option>-b</option></term><term><option>--compile</option></term> | |
382 | <term><option>--build</option></term> | |
383 | <listitem><para>Compile source packages after downloading them. | |
384 | Configuration Item: <literal>APT::Get::Compile</literal>.</para></listitem> | |
385 | </varlistentry> | |
386 | ||
387 | <varlistentry><term><option>--ignore-hold</option></term> | |
388 | <listitem><para>Ignore package holds; this causes <command>apt-get</command> to ignore a hold | |
389 | placed on a package. This may be useful in conjunction with | |
390 | <literal>dist-upgrade</literal> to override a large number of undesired holds. | |
391 | Configuration Item: <literal>APT::Ignore-Hold</literal>.</para></listitem> | |
392 | </varlistentry> | |
393 | ||
394 | <varlistentry><term><option>--with-new-pkgs</option></term> | |
395 | <listitem><para>Allow installing new packages when used in | |
396 | conjunction with <literal>upgrade</literal>. This is useful if | |
397 | the update of a installed package requires new dependencies to be | |
398 | installed. Instead of holding the package back <literal>upgrade</literal> | |
399 | will upgrade the package and install the new dependencies. Note that | |
400 | <literal>upgrade</literal> with this option will never remove packages, | |
401 | only allow adding new ones. | |
402 | Configuration Item: <literal>APT::Get::Upgrade-Allow-New</literal>. | |
403 | </para></listitem> | |
404 | </varlistentry> | |
405 | ||
406 | <varlistentry><term><option>--no-upgrade</option></term> | |
407 | <listitem><para>Do not upgrade packages; when used in conjunction with <literal>install</literal>, | |
408 | <literal>no-upgrade</literal> will prevent packages on the command line | |
409 | from being upgraded if they are already installed. | |
410 | Configuration Item: <literal>APT::Get::Upgrade</literal>.</para></listitem> | |
411 | </varlistentry> | |
412 | ||
413 | <varlistentry><term><option>--only-upgrade</option></term> | |
414 | <listitem><para>Do not install new packages; when used in conjunction | |
415 | with <literal>install</literal>, <literal>only-upgrade</literal> will | |
416 | install upgrades for already installed packages only and ignore requests | |
417 | to install new packages. | |
418 | Configuration Item: <literal>APT::Get::Only-Upgrade</literal>.</para></listitem> | |
419 | </varlistentry> | |
420 | ||
421 | <varlistentry><term><option>--force-yes</option></term> | |
422 | <listitem><para>Force yes; this is a dangerous option that will cause apt to continue | |
423 | without prompting if it is doing something potentially harmful. It | |
424 | should not be used except in very special situations. Using | |
425 | <literal>force-yes</literal> can potentially destroy your system! | |
426 | Configuration Item: <literal>APT::Get::force-yes</literal>.</para></listitem> | |
427 | </varlistentry> | |
428 | ||
429 | <varlistentry><term><option>--print-uris</option></term> | |
430 | <listitem><para>Instead of fetching the files to install their URIs are printed. Each | |
431 | URI will have the path, the destination file name, the size and the expected | |
432 | MD5 hash. Note that the file name to write to will not always match | |
433 | the file name on the remote site! This also works with the | |
434 | <literal>source</literal> and <literal>update</literal> commands. When used with the | |
435 | <literal>update</literal> command the MD5 and size are not included, and it is | |
436 | up to the user to decompress any compressed files. | |
437 | Configuration Item: <literal>APT::Get::Print-URIs</literal>.</para></listitem> | |
438 | </varlistentry> | |
439 | ||
440 | <varlistentry><term><option>--purge</option></term> | |
441 | <listitem><para>Use purge instead of remove for anything that would be removed. | |
442 | An asterisk ("*") will be displayed next to packages which are | |
443 | scheduled to be purged. <option>remove --purge</option> is equivalent to the | |
444 | <option>purge</option> command. | |
445 | Configuration Item: <literal>APT::Get::Purge</literal>.</para></listitem> | |
446 | </varlistentry> | |
447 | ||
448 | <varlistentry><term><option>--reinstall</option></term> | |
449 | <listitem><para>Re-install packages that are already installed and at the newest version. | |
450 | Configuration Item: <literal>APT::Get::ReInstall</literal>.</para></listitem> | |
451 | </varlistentry> | |
452 | ||
453 | <varlistentry><term><option>--list-cleanup</option></term> | |
454 | <listitem><para>This option is on by default; use <literal>--no-list-cleanup</literal> to turn | |
455 | it off. When it is on, <command>apt-get</command> will automatically manage the contents | |
456 | of <filename>&statedir;/lists</filename> to ensure that obsolete files are erased. | |
457 | The only reason to turn it off is if you frequently change your sources list. | |
458 | Configuration Item: <literal>APT::Get::List-Cleanup</literal>.</para></listitem> | |
459 | </varlistentry> | |
460 | ||
461 | <varlistentry><term><option>-t</option></term> | |
462 | <term><option>--target-release</option></term> | |
463 | <term><option>--default-release</option></term> | |
464 | <listitem><para>This option controls the default input to the policy engine; it creates | |
465 | a default pin at priority 990 using the specified release string. | |
466 | This overrides the general settings in <filename>/etc/apt/preferences</filename>. | |
467 | Specifically pinned packages are not affected by the value | |
468 | of this option. In short, this option | |
469 | lets you have simple control over which distribution packages will be | |
470 | retrieved from. Some common examples might be | |
471 | <option>-t '2.1*'</option>, <option>-t unstable</option> | |
472 | or <option>-t sid</option>. | |
473 | Configuration Item: <literal>APT::Default-Release</literal>; | |
474 | see also the &apt-preferences; manual page.</para></listitem> | |
475 | </varlistentry> | |
476 | ||
477 | <varlistentry><term><option>--trivial-only</option></term> | |
478 | <listitem><para> | |
479 | Only perform operations that are 'trivial'. Logically this can be considered | |
480 | related to <option>--assume-yes</option>; where <option>--assume-yes</option> will answer | |
481 | yes to any prompt, <option>--trivial-only</option> will answer no. | |
482 | Configuration Item: <literal>APT::Get::Trivial-Only</literal>.</para></listitem> | |
483 | </varlistentry> | |
484 | ||
485 | <varlistentry><term><option>--no-remove</option></term> | |
486 | <listitem><para>If any packages are to be removed apt-get immediately aborts without | |
487 | prompting. | |
488 | Configuration Item: <literal>APT::Get::Remove</literal>.</para></listitem> | |
489 | </varlistentry> | |
490 | ||
491 | <varlistentry><term><option>--auto-remove</option></term> | |
492 | <listitem><para>If the command is either <literal>install</literal> or <literal>remove</literal>, | |
493 | then this option acts like running the <literal>autoremove</literal> command, removing unused | |
494 | dependency packages. Configuration Item: <literal>APT::Get::AutomaticRemove</literal>. | |
495 | </para></listitem> | |
496 | </varlistentry> | |
497 | ||
498 | <varlistentry><term><option>--only-source</option></term> | |
499 | <listitem><para>Only has meaning for the | |
500 | <literal>source</literal> and <literal>build-dep</literal> | |
501 | commands. Indicates that the given source names are not to be | |
502 | mapped through the binary table. This means that if this option | |
503 | is specified, these commands will only accept source package | |
504 | names as arguments, rather than accepting binary package names | |
505 | and looking up the corresponding source package. Configuration | |
506 | Item: <literal>APT::Get::Only-Source</literal>.</para></listitem> | |
507 | </varlistentry> | |
508 | ||
509 | <varlistentry><term><option>--diff-only</option></term><term><option>--dsc-only</option></term><term><option>--tar-only</option></term> | |
510 | <listitem><para>Download only the diff, dsc, or tar file of a source archive. | |
511 | Configuration Item: <literal>APT::Get::Diff-Only</literal>, <literal>APT::Get::Dsc-Only</literal>, and | |
512 | <literal>APT::Get::Tar-Only</literal>.</para></listitem> | |
513 | </varlistentry> | |
514 | ||
515 | <varlistentry><term><option>--arch-only</option></term> | |
516 | <listitem><para>Only process architecture-dependent build-dependencies. | |
517 | Configuration Item: <literal>APT::Get::Arch-Only</literal>.</para></listitem> | |
518 | </varlistentry> | |
519 | ||
520 | <varlistentry><term><option>--allow-unauthenticated</option></term> | |
521 | <listitem><para>Ignore if packages can't be authenticated and don't prompt about it. | |
522 | This is useful for tools like pbuilder. | |
523 | Configuration Item: <literal>APT::Get::AllowUnauthenticated</literal>.</para></listitem> | |
524 | </varlistentry> | |
525 | ||
526 | <varlistentry><term><option>--show-progress</option></term> | |
527 | <listitem><para>Show user friendly progress information in the | |
528 | terminal window when packages are installed, upgraded or | |
529 | removed. For a machine parsable version of this data see | |
530 | README.progress-reporting in the apt doc directory. | |
531 | Configuration Item: <literal>DpkgPM::Progress</literal> and <literal>Dpkg::Progress-Fancy</literal>.</para></listitem> | |
532 | </varlistentry> | |
533 | ||
534 | ||
535 | &apt-commonoptions; | |
536 | ||
537 | </variablelist> | |
538 | </refsect1> | |
539 | ||
540 | <refsect1><title>Files</title> | |
541 | <variablelist> | |
542 | &file-sourceslist; | |
543 | &file-aptconf; | |
544 | &file-preferences; | |
545 | &file-cachearchives; | |
546 | &file-statelists; | |
547 | </variablelist> | |
548 | </refsect1> | |
549 | ||
550 | <refsect1><title>See Also</title> | |
551 | <para>&apt-cache;, &apt-cdrom;, &dpkg;, &dselect;, &sources-list;, | |
552 | &apt-conf;, &apt-config;, &apt-secure;, | |
553 | The APT User's guide in &guidesdir;, &apt-preferences;, the APT Howto.</para> | |
554 | </refsect1> | |
555 | ||
556 | <refsect1><title>Diagnostics</title> | |
557 | <para><command>apt-get</command> returns zero on normal operation, decimal 100 on error.</para> | |
558 | </refsect1> | |
559 | &manbugs; | |
560 | </refentry> |