yum的一些不太常用的命令

使用yum了解软件的主要功能

比如你想知道httpd这个软件是干吗的，可以输入下面的的命令： yum provides httpd

[root@ zhetenger ~]# yum provides nginx
Loaded plugins: priorities
nginx-.0.5-3.el6.i686 : A high performance web server and reverse proxy server
Repo        : epel

 

使用YUM查看软件包的基本信息

>[root@zhetenger ~]#  yum info samba
Loaded plugins: priorities
Installed Packages
Name        : samba
Arch        : i686
Version     : 3.5.0
Release     : 25.el6
Size        : 7 M
Repo        : installed
From repo   : base
Summary     : Server and Client software to interoperate with Windows machines
URL         : http://www.samba.org/
License     : GPLv3+ and LGPLv3+
Description :
: Samba is the suite of programs by which a lot of PC-related

: machines share files, printers, and other information (such as
: lists of available files and printers). The Windows NT, OS/2, and
: Linux operating systems support this natively, and add-on packages
: can enable the same thing for DOS, Windows, VMS, UNIX of all
: kinds, MVS, and more. This package provides an SMB/CIFS server
: that can be used to provide network services to SMB/CIFS clients.
: Samba uses NetBIOS over TCP/IP (NetBT) protocols and does NOT
: need the NetBEUI (Microsoft Raw NetBIOS frame) protocol.

 

怎么清除YUM缓存和下载包文件

每安装一个软件包，YUM都是先下载一个RPM软件包然后再安装，安装完后并不会自动删除。时间长了，这些文件占很多空间的。所以，需要定时清理： yum clean all



安装yum软件集合

yum groupinstall 'Development Tools'

卸载yum软件集合

yum groupremove 'Development Tools'