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check Check for problems in the rpmdb
check-update Check for available package updates
clean Remove cached data #清空缓存信息
deplist List a package's dependencies
distribution-synchronization Synchronize installed packages to the latest available versions
downgrade downgrade a package
erase Remove a package or packages from your system #卸载安装包
groupinfo Display details about a package group #查看包组信息
groupinstall Install the packages in a group on your system #安装包组
grouplist List available package groups #查看包组列表信息
groupremove Remove the packages in a group from your system #卸载包组
help Display a helpful usage message
history Display, or use, the transaction history
info Display details about a package or group of packages #查看包或者包组的信息
install Install a package or packages on your system #安装包
list List a package or groups of packages #列出YUM仓库包列表
load-transaction load a saved transaction from filename
makecache Generate the metadata cache #重新生成元数据缓存(去YUM服务器更新)
provides Find what package provides the given value
reinstall reinstall a package #重新安装程序
repolist Display the configured software repositories #列出可用的YUM仓库源
resolvedep Determine which package provides the given dependency
search Search package details for the given string #搜索YUM仓库特定的包
shell Run an interactive yum shell
update Update a package or packages on your system #更新包或这包组
upgrade Update packages taking obsoletes into account
version Display a version for the machine and/or available repos.
========选项========
Options:
-h, --help show this help message and exit
-t, --tolerant be tolerant of errors
-C, --cacheonly run entirely from system cache, don't update cache
-c [config file], --config=[config file]
config file location
-R [minutes], --randomwait=[minutes]
maximum command wait time
-d [debug level], --debuglevel=[debug level]
debugging output level
--showduplicates show duplicates, in repos, in list/search commands
-e [error level], --errorlevel=[error level]
error output level
--rpmverbosity=[debug level name]
debugging output level for rpm
-q, --quiet quiet operation
-v, --verbose verbose operation
-y, --assumeyes answer yes for all questions
--assumeno answer no for all questions
--version show Yum version and exit
--installroot=[path] set install root
--enablerepo=[repo] enable one or more repositories (wildcards allowed)
--disablerepo=[repo] disable one or more repositories (wildcards allowed)
-x [package], --exclude=[package]
exclude package(s) by name or glob
--disableexcludes=[repo]
disable exclude from main, for a repo or for
everything
--obsoletes enable obsoletes processing during updates
--noplugins disable Yum plugins
--nogpgcheck disable gpg signature checking
--disableplugin=[plugin]
disable plugins by name
--enableplugin=[plugin]
enable plugins by name
--skip-broken skip packages with depsolving problems
--color=COLOR control whether color is used
--releasever=RELEASEVER
set value of $releasever in yum config and repo files
--downloadonly don't update, just download
--downloaddir=DLDIR specifies an alternate directory to store packages
--setopt=SETOPTS set arbitrary config and repo options
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