rpm 软件安装
???? 安装：
?????????? rpm -ivh jdk-1_5_0_06-linux-amd64.rpm
???? 查看已的：
?????????? rpm -qa |grep jdk
???? 卸载：
?????????? rpm -e jdk-1.6.0_45-fcs.x86_64
?
?
问题：
????
[root@PBL-BJ-U-3C1 java]# rpm -ivh jdk-1_5_0_06-linux-amd64.rpm Preparing... ########################################### [100%] package jdk-2000:1.6.0_45-fcs.x86_64 (which is newer than jdk-2000:1.5.0_06-fcs.x86_64) is already installed
?? 须要先卸载“jdk-2000:1.6.0_45-fcs.x86_64 ”
