(centos)yum配置保存package包

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（centos7）linux yum 配置保存下载package

1. 配置yum.conf

   vi /etc/yum.conf 
   

2. yum.conf如下：把 keepcache=0 改为 keepcache=1即可

   [main]
   cachedir=/var/cache/yum/$basearch/$releasever
   keepcache=0
   debuglevel=2
   logfile=/var/log/yum.log
   exactarch=1
   obsoletes=1
   gpgcheck=1
   plugins=1
   installonly_limit=5
   bugtracker_url=http://bugs.centos.org/set_project.php?project_id=23&ref=http://bugs.centos.org/bug_report_page.php?category=yum
   distroverpkg=centos-release
   
   
   #  This is the default, if you make this bigger yum won't see if the metadata
   # is newer on the remote and so you'll "gain" the bandwidth of not having to
   # download the new metadata and "pay" for it by yum not having correct
   # information.
   #  It is esp. important, to have correct metadata, for distributions like
   # Fedora which don't keep old packages around. If you don't like this checking
   # interupting your command line usage, it's much better to have something
   # manually check the metadata once an hour (yum-updatesd will do this).
   # metadata_expire=90m
   
   # PUT YOUR REPOS HERE OR IN separate files named file.repo
   # in /etc/yum.repos.d
   
   

3. 保存的包存放在/var/cache/ 下

4. yum安装本地包命令

   yum localinstall
   

   如果是rpm包，直接使用

   rpm -ivh 包名