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           yum [options] [command] [package ...]


           yum is an interactive, rpm based, package manager. It can automatically
           perform system updates, including dependency analysis and obsolete pro-
           cessing  based  on "repository" metadata. It can also perform installa-
           tion of new packages, removal of old packages and  perform  queries  on
           the  installed and/or available packages among many other commands/ser-
           vices (see below). yum is similar to other high level package  managers
           like apt-get and smart.
           While  there  are  some  graphical interfaces directly to the yum code,
           more recent graphical interface development  is  happening  with  Pack-
           ageKit and the gnome-packagekit application.
           command is one of:
            * install package1 [package2] [...]
            * update [package1] [package2] [...]
            * update-to [package1] [package2] [...]
            * check-update
            * upgrade [package1] [package2] [...]
            * upgrade-to [package1] [package2] [...]
            * distribution-synchronization [package1] [package2] [...]
            * remove | erase package1 [package2] [...]
            * list [...]
            * info [...]
            * provides | whatprovides feature1 [feature2] [...]
            * clean [ packages | metadata | expire-cache | rpmdb | plugins | all ]
            * makecache
            * groupinstall group1 [group2] [...]
            * groupupdate group1 [group2] [...]
            * grouplist [hidden] [groupwildcard] [...]
            * groupremove group1 [group2] [...]
            * groupinfo group1 [...]
            * search string1 [string2] [...]
            * shell [filename]
            * resolvedep dep1 [dep2] [...]
            * localinstall rpmfile1 [rpmfile2] [...]
               (maintained for legacy reasons only - use install)
            * localupdate rpmfile1 [rpmfile2] [...]
               (maintained for legacy reasons only - use update)
            * reinstall package1 [package2] [...]
            * downgrade package1 [package2] [...]
            * deplist package1 [package2] [...]
            * repolist [all|enabled|disabled]
            * version [ all | installed | available | group-* | nogroups* |  grou-
           plist | groupinfo ]
               *   history   [info|list|packages-list|packages-info|summary|addon-
            * load-transaction [txfile]
            * check
                  starts with an @ character the rest  of  the  name  is  used  as
                  though  passed  to  the groupinstall command. If the name starts
                  with a - character, then a search is done within the transaction
                  and any matches are removed. If the name is a file, then install
                  works like localinstall. If the name doesn't  match  a  package,
                  then   package   "provides"   are   searched   (e.g.   "_sqlite-
        ") as are filelists (Eg. "/usr/bin/yum").  Also
                  note that for filelists, wildcards will match multiple packages.
           update If run without any packages, update will update every  currently
                  installed package.  If one or more packages or package globs are
                  specified, Yum will only  update  the  listed  packages.   While
                  updating  packages,  yum  will  ensure that all dependencies are
                  satisfied. (See Specifying package names for  more  information)
                  If  the  packages or globs specified match to packages which are
                  not currently installed  then  update  will  not  install  them.
                  update  operates  on  groups, files, provides and filelists just
                  like the "install" command.
                  If the main obsoletes configure option is true (default) or  the
                  --obsoletes  flag  is present yum will include package obsoletes
                  in its calculations - this makes it  better  for  distro-version
                  changes,  for example: upgrading from somelinux 8.0 to somelinux
                  Note that "update" works on installed packages first,  and  only
                  if there are no matches does it look for available packages. The
                  difference is most noticeable when you do "update foo-1-2" which
                  will  act  exactly  as "update foo" if foo-1-2 is installed. You
                  can use the "update-to" if you'd prefer that nothing  happen  in
                  the above case.
                  This  command  works like "update" but always specifies the ver-
                  sion of the package we want to update to.
                  Implemented so you could know if your machine  had  any  updates
                  that  needed  to  be  applied  without running it interactively.
                  Returns exit value of 100 if there are packages available for an
                  update.  Also  returns  a  list of the packages to be updated in
                  list format. Returns 0 if no packages are available for  update.
                  Returns  1  if  an error occurred.  Running in verbose mode also
                  shows obsoletes.
                  Is the same as the update command with the --obsoletes flag set.
                  See update for more details.
                  This  command does not perform operations on groups, local pack-
                  ages or negative selections.
           remove or erase
                  Are used to remove the specified packages  from  the  system  as
                  well  as removing any packages which depend on the package being
                  removed.  remove  operates  on  groups,  files,   provides   and
                  filelists  just like the "install" command.(See Specifying pack-
                  age names for more information)
                  Note that "yum" is included in the protected_packages configura-
                  tion,  by default.  So you can't accidentally remove yum itself.
           list   Is used to list various information  about  available  packages;
                  more  complete details are available in the List Options section
           provides or whatprovides
                  Is used to find out which package provides some feature or file.
                  Just use a specific name or a file-glob-syntax wildcards to list
                  the packages available or installed that provide that feature or
           search This  is used to find packages when you know something about the
                  package but aren't sure of it's name. By default search will try
                  searching  just package names and summaries, but if that "fails"
                  it will then try descriptions and url.
                  Yum search orders the results so that  those  packages  matching
                  more terms will appear first.
                  You  can  force  searching everything by specifying "all" as the
                  first argument.
           info   Is used to list a  description  and  summary  information  about
                  available  packages;  takes  the  same  arguments as in the List
                  Options section below.
           clean  Is used to clean up various things which accumulate in  the  yum
                  cache  directory  over time.  More complete details can be found
                  in the Clean Options section below.
                  Is used to download and make usable all  the  metadata  for  the
                  because "yum install X" and "yum update X" do  the  same  thing,
                  when X is already installed.
                  Is  used to list the available groups from all yum repos. Groups
                  are  marked  as  "installed"  if  all  mandatory  packages   are
                  installed,  or  if  a  group doesn't have any mandatory packages
                  then it is installed if any of the optional or  default  package
                  are  installed.   The  optional "hidden" argument will also list
                  groups marked as not being "user visible". If you  pass  the  -v
                  option, to enable verbose mode, then the groupids are displayed.
                  Is used to remove  all  of  the  packages  in  a  group,  unlike
                  "groupinstall"   this   will  remove  everything  regardless  of
                  group_package_types. It is worth pointing out that packages  can
                  be  in  more  than  one group, so "groupinstall X Y" followed by
                  "groupremove Y"  does  not  do  give  you  the  same  result  as
                  "groupinstall X".
                  The groupremove_leaf_only configuration changes the behaviour of
                  this command to only remove packages which  aren't  required  by
                  something else.
                  Is used to give the description and package list of a group (and
                  which type those packages are marked as). Note that you can  use
                  the  yum-filter-data  and  yum-list-data  plugins to get/use the
                  data the other way around (Ie. what  groups  own  packages  need
                  updating).  If  you  pass the -v option, to enable verbose mode,
                  then the package names are matched  against  installed/available
                  packages similar to the list command.
           shell  Is  used  to enter the 'yum shell', when a filename is specified
                  the contents of that file is executed in  yum  shell  mode.  See
                  yum-shell(8) for more info
                  Is  used  to list packages providing the specified dependencies,
                  at most one package is listed per dependency.
                  Is used to install a set of local rpm  files.  If  required  the
                  enabled  repositories will be used to resolve dependencies. Note
                  that the install command will do a local  install,  if  given  a
                  filename. This option is maintained for legacy reasons only.
                  installed.  This does not work for "installonly" packages,  like
                  Kernels.  reinstall  operates  on  groups,  files,  provides and
                  filelists just like the "install" command.
                  Will try and downgrade a  package  from  the  version  currently
                  installed  to  the  previously highest version (or the specified
                  version).  The depsolver will not necessarily work, but  if  you
                  specify  all the packages it should work (and thus. all the sim-
                  ple cases will work). Also this does not work for  "installonly"
                  packages,  like  Kernels.  downgrade  operates on groups, files,
                  provides, filelists and rpm files just like the  "install"  com-
                  Produces  a  list  of all dependencies and what packages provide
                  those dependencies for the given packages.
                  Produces a list of configured repositories. The  default  is  to
                  list all enabled repositories. If you pass -v, for verbose mode,
                  more information is listed. If the first argument is  'enabled',
                  'disabled'  or  'all'  then the command will list those types of
                  You can pass repo id or name arguments, or  wildcards  which  to
                  match  against  both of those. However if the id or name matches
                  exactly then the repo will be listed even  if  you  are  listing
                  enabled repos. and it is disabled.
                  In  non-verbose  mode  the first column will start with a '*' if
                  the repo. has metalink data  and  the  latest  metadata  is  not
                  local.  For  non-verbose  mode the last column will also display
                  the number of packages in the repo. and (if there are  any  user
                  specified excludes) the number of packages excluded.
                  One last special feature of repolist, is that if you are in non-
                  verbose mode then yum will ignore any repo errors and output the
                  information  it  can  get  (Eg. "yum clean all; yum -C repolist"
                  will output something, although the package counts/etc. will  be
                  zeroed out).
                  Produces  a "version" of the rpmdb, and of the enabled reposito-
                  ries if "all" is given as the first argument. You can also spec-
                  ify  version groups in the version-groups configuration file. If
                  you pass -v, for verbose mode, more information is  listed.  The
                  version is calculated by taking an SHA1 hash of the packages (in
                  "version  available"  -  Only  show  the version information for
                  available packages.
                  "version all" - Show the version information for  installed  and
                  available packages.
                  "version  nogroups  |  nogroups-*"  - Just show the main version
                  "version group-*" - Just show the grouped  version  information,
                  if  more  arguments  are given then only show the data for those
                  The history command allows the user to view what has happened in
                  past transactions (assuming the history_record config. option is
                  set). You can use  info/list/packages-list/packages-info/summary
                  to  view what happened, undo/redo/rollback to act on that infor-
                  mation and new to start a new history file.
                  The info/list/summary commands take either a transaction id or a
                  package  (with  wildcards,  as in Specifying package names), all
                  three can also be passed no arguments. list can  be  passed  the
                  keyword "all" to list all the transactions.
                  The info command can also take ranges of transaction ids, of the
                  form start..end, which will then display a merged history as  if
                  all the transactions in the range had happened at once.
                  Eg.  "history  info 1..4" will merge the first four transactions
                  and display them as a single transaction.
                  The packages-list/packages-info commands takes a package   (with
                  wildcards,  as  in Specifying package names). And show data from
                  the point of view of that package.
                  The undo/redo/rollback commands take either a single transaction
                  id  or  the keyword last and an offset from the last transaction
                  (Eg. if you've done 250 transactions, "last" refers to  transac-
                  tion 250, and "last-4" refers to transaction 246).
                  The   undo/redo  commands  act  on  the  specified  transaction,
                  undo'ing or repeating the work of that  transaction.  While  the
                  rollback  command  will undo all transactions up to the point of
                  the specified transaction. For example, if you have  3  transac-
                  tions,  where  package  A; B and C where installed respectively.
                  Then "undo 1" will try to remove package A, "redo 1" will try to
                  install  package A (if it is not still installed), and "rollback
                  1" will try to remove packages B and C. Note that after a "roll-
                  back  1" you will have a fourth transaction, although the ending
                  In "history list" you can change the behaviour of the 2nd column
                  via the configuration option history_list_view.
                  In  "history  list"  output  the  Altered column also gives some
                  extra information if there  was  something  not  good  with  the
                  transaction (this is also shown at the end of the package column
                  in the packages-list command).
                  > - The rpmdb was changed, outside yum, after the transaction.
                  < - The rpmdb was changed, outside yum, before the  transaction.
                  * - The transaction aborted before completion.
                  # - The transaction completed, but with a non-zero status.
                  E - The transaction completed fine, but had warning/error output
                  during the transaction.
                  P - The transaction completed fine, but problems already existed
                  in the rpmdb.
                  s  -  The  transaction  completed  fine,  but  --skip-broken was
                  enabled and had to skip some packages.
                  This command will re-load a saved  yum  transaction  file,  this
                  allows  you  to run a transaction on one machine and then use it
                  on another.  The two common ways to get a saved yum  transaction
                  file  are  from "yum -q history addon-info last saved_tx" or via
                  the automatic saves in $TMPDIR/yum_save_tx.* when a  transaction
                  is solved but not run.
           check  Checks  the local rpmdb and produces information on any problems
                  it finds. You can pass the check command the  arguments  "depen-
                  dencies",  "duplicates", "obsoletes" or "provides", to limit the
                  checking that is performed (the  default  is  "all"  which  does
           help   Produces  help,  either  for  all commands or if given a command
                  name then the help for that particular command.


           Most command line options can be set using the  configuration  file  as
           well  and  the descriptions indicate the necessary configuration option
           to set.
           -h, --help
                  Specifies  the config file location - can take HTTP and FTP URLs
                  and local file paths.
           -q, --quiet
                  Run without output.  Note that you likely also want to use -y.
           -v, --verbose
                  Run with a lot of debugging output.
           -d, --debuglevel=[number]
                  Sets the debugging level to [number] -  turns  up  or  down  the
                  amount of things that are printed. Practical range: 0 - 10
                  Configuration Option: debuglevel
           -e, --errorlevel=[number]
                  Sets the error level to [number] Practical range 0 - 10. 0 means
                  print only critical errors about which you must be told. 1 means
                  print  all  errors,  even ones that are not overly important. 1+
                  means print more errors (if any) -e 0 is good for cron jobs.
                  Configuration Option: errorlevel
                  Sets the debug level to [name] for rpm scriptlets. 'info' is the
                  default,  other  options  are: 'critical', 'emergency', 'error',
                  'warn' and 'debug'.
                  Configuration Option: rpmverbosity
           -R, --randomwait=[time in minutes]
                  Sets the maximum amount of time yum will wait before  performing
                  a command - it randomizes over the time.
           -C, --cacheonly
                  Tells  yum to run entirely from system cache - does not download
                  or update any headers unless it has to to perform the  requested
                  action.  If  you're  using  this  as a user yum will not use the
                  tempcache for the user but will only use the system cache in the
                  system cachedir.
                  Reports  the  yum  version number and installed package versions
                  for everything in history_record_packages (can be  added  to  by
                  Doesn't  limit  packages  to  their latest versions in the info,
                  list and search commands (will also affect plugins which use the
                  doPackageLists() API).
                  Specifies  an  alternative  installroot,  relative  to which all
                  packages will be installed.
                  Configuration Option: installroot
                  Configuration Option: obsoletes
           -x, --exclude=package
                  Exclude  a  specific package by name or glob from updates on all
                  repositories.  Configuration Option: exclude
                  Display colorized output automatically, depending on the  output
                  terminal,  always  (using  ANSI  codes) or never. Note that some
                  commands (Eg. list and info) will do a little  extra  work  when
                  color is enabled.  Configuration Option: color
                  Disable  the excludes defined in your config files. Takes one of
                  three options:
                  all == disable all excludes
                  main == disable excludes defined in [main] in yum.conf
                  repoid == disable excludes defined for that repo
                  Run with one or more plugins disabled, the argument is  a  comma
                  separated list of wildcards to match against plugin names.
                  Run with all plugins disabled.
                  Configuration Option: plugins
                  Run with GPG signature checking disabled.
                  Configuration Option: gpgcheck
                  Resolve  depsolve problems by removing packages that are causing
                  problems from the transaction.
                  Configuration Option: skip_broken
                  Pretend the current release version is the given string. This is
                  very useful when combined with --installroot. Note that with the
                  default upstream cachedir, of /var/cache/yum, using this  option
                  will  corrupt  your  cache  (and you can use $releasever in your
                  cachedir configuration to stop this).
           -t, --tolerant
                  This option makes  yum  go  slower,  checking  for  things  that
                  shouldn't  be  possible  making  it  more  tolerant  of external
                  Don't update, just download.
                  The format of the output of yum list is:
                  name.arch [epoch:]version-release  repo or @installed-from-repo
           yum list [all | glob_exp1] [glob_exp2] [...]
                  List all available and installed packages.
           yum list available [glob_exp1] [...]
                  List all packages  in  the  yum  repositories  available  to  be
           yum list updates [glob_exp1] [...]
                  List  all  packages  with updates available in the yum reposito-
           yum list installed [glob_exp1] [...]
                  List the packages specified by args.  If an  argument  does  not
                  match  the  name  of an available package, it is assumed to be a
                  shell-style glob and any matches are printed.
           yum list extras [glob_exp1] [...]
                  List the packages installed on the system that are not available
                  in any yum repository listed in the config file.
           yum list obsoletes [glob_exp1] [...]
                  List  the packages installed on the system that are obsoleted by
                  packages in any yum repository listed in the config file.
           yum list recent
                  List packages recently added  into  the  repositories.  This  is
                  often  not  helpful, but what you may really want to use is "yum
                  list-updateinfo new" from the security yum plugin.


           A package can be referred to for install, update,  remove,  list,  info
           etc with any of the following as well as globs of any of the following:


           The following are the ways which you can invoke yum in clean mode. Note
           that "all files" in the commands below means "all  files  in  currently
           enabled  repositories".   If  you  want to also clean any (temporarily)
           disabled repositories you need to use --enablerepo='*' option.
           yum clean expire-cache
                  Eliminate the local data  saying  when  the  metadata  and  mir-
                  rorlists  were  downloaded  for  each  repo. This means yum will
                  revalidate the cache for each repo. next time it is  used.  How-
                  ever  if  the  cache  is  still  valid,  nothing significant was
           yum clean packages
                  Eliminate any cached packages from the system.  Note that  pack-
                  ages are not automatically deleted after they are downloaded.
           yum clean headers
                  Eliminate  all  of  the  header files, which old versions of yum
                  used for dependency resolution.
           yum clean metadata
                  Eliminate all of the files  which  yum  uses  to  determine  the
                  remote  availability  of  packages. Using this option will force
                  yum to download all the metadata the next time it is run.
           yum clean dbcache
                  Eliminate the sqlite cache used for faster access  to  metadata.
                  Using this option will force yum to download the sqlite metadata
                  the next time it is run, or  recreate  the  sqlite  metadata  if
                  using an older repo.
           yum clean rpmdb
                  Eliminate any cached data from the local rpmdb.
           yum clean plugins
                  Tell any enabled plugins to eliminate their cached data.
           yum clean all
                  Does all of the above.
                  enabled = 1
           See  the  yum.conf(5)  man  page for more information on plugin related
           configuration options.




           pkcon (1)
           yum.conf (5)
           yum-updatesd (8)
           package-cleanup (1)
           repoquery (1)
           yum-complete-transaction (1)
           yumdownloader (1)
           yum-utils (1)
           yum-security (8)
           yum search yum


           See the Authors file included with this program.


           There of course aren't any bugs, but if you find any, you should  first
           consult  the  FAQ  mentioned  above  and  then  email the mailing list:
  or filed in bugzilla.

    Seth Vidal yum(8)


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