看例子吧：
安装screen
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# yum install screen <snip> Dependencies Resolved ================================================================================= Package Arch Version Repository Size ================================================================================= Installing: screen i686 4.0.3-16.el6 rhel-6-server-rpms 484 k <snip> Installed: screen.i686 0:4.0.3-16.el6 Complete! |
查看历史，获取编号：
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# yum history Loaded plugins: product-id, refresh-packagekit, subscription-manager Updating Red Hat repositories. ID | Login user | Date and time | Action(s) | Altered ------------------------------------------------------------------------------- 8 | root <root> | 2011-10-03 14:40 | Install | 1 7 | root <root> | 2011-09-21 04:24 | Install | 1 ## 6 | root <root> | 2011-09-21 04:23 | Install | 1 ## 5 | root <root> | 2011-09-16 13:35 | Install | 1 4 | root <root> | 2011-09-16 13:33 | Erase | 1 3 | root <root> | 2011-09-14 14:36 | Install | 1 2 | root <root> | 2011-09-12 15:48 | I, U | 80 1 | System <unset> | 2011-09-12 14:57 | Install | 1025 |
undo 撤销：
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# yum history undo 8 Loaded plugins: product-id, refresh-packagekit, subscription-manager Updating Red Hat repositories. Undoing transaction 8, from Mon Oct 3 14:40:01 2011 Install screen-4.0.3-16.el6.i686 Resolving Dependencies --> Running transaction check ---> Package screen.i686 0:4.0.3-16.el6 will be erased --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Removing: screen i686 4.0.3-16.el6 @rhel-6-server-rpms 783 k <snip> Removed: screen.i686 0:4.0.3-16.el6 Complete! |
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