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分类: LINUX
2019-10-15 15:38:53
导读 |
yum( Yellow dog Updater, Modified)是一个在Fedora和RedHat以及SUSE中的前端软件包管理器。 基於RPM包管理,能够从指定的服务器自动下载RPM包并且安装,可以自动处理依赖性关系,并且一次安装所有依赖的软体包,无须繁琐地一次次下载、安装。 yum提供了查找、安装、删除某一个、一组甚至全部软件包的,而且简洁而又好记。 |
yum [options] [command] [package ...]
options:可选,选项包括-h(帮助),-y(当安装过程提示选择全部为"yes"),-q(不显示安装的过程)等等。
command:要进行的操作。
package:操作的对象。
1.列出所有可更新的软件清单命令:yum check-update
2.更新所有软件命令:yum update
3.仅安装指定的软件命令:yum install 4.仅更新指定的软件命令:yum update 5.列出所有可安裝的软件清单命令:yum list
6.删除软件包命令:yum remove 7.查找软件包 命令:yum search
8.清除缓存命令:
安装 pam-devel
[root@www ~]# yum install pam-devel Setting up Install Process Parsing package install arguments Resolving Dependencies < ==先检查软件的属性相依问题 --> Running transaction check ---> Package pam-devel.i386 0:0.99.6.2-4.el5 set to be updated --> Processing Dependency: pam = 0.99.6.2-4.el5 for package: pam-devel --> Running transaction check ---> Package pam.i386 0:0.99.6.2-4.el5 set to be updated filelists.xml.gz 100% |=========================| 1.6 MB 00:05 filelists.xml.gz 100% |=========================| 138 kB 00:00 -> Finished Dependency Resolution ……(省略)
移除 pam-devel
[root@www ~]# yum remove pam-devel Setting up Remove Process Resolving Dependencies < ==同样的,先解决属性相依的问题 --> Running transaction check ---> Package pam-devel.i386 0:0.99.6.2-4.el5 set to be erased --> Finished Dependency Resolution Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Removing: pam-devel i386 0.99.6.2-4.el5 installed 495 k Transaction Summary ============================================================================= Install 0 Package(s) Update 0 Package(s) Remove 1 Package(s) < ==还好,并没有属性相依的问题,单纯移除一个软件 Is this ok [y/N]: y Downloading Packages: Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Erasing : pam-devel ######################### [1/1] Removed: pam-devel.i386 0:0.99.6.2-4.el5 Complete!
利用 yum 的功能,找出以 pam 为开头的软件名称有哪些?
[root@www ~]# yum list pam* Installed Packages pam.i386 0.99.6.2-3.27.el5 installed pam_ccreds.i386 3-5 installed pam_krb5.i386 2.2.14-1 installed pam_passwdqc.i386 1.0.2-1.2.2 installed pam_pkcs11.i386 0.5.3-23 installed pam_smb.i386 1.1.7-7.2.1 installed Available Packages < ==底下则是『可升级』的或『未安装』的 pam.i386 0.99.6.2-4.el5 base pam-devel.i386 0.99.6.2-4.el5 base pam_krb5.i386 2.2.14-10 base