命令记录

env 列出所有的环境变量
set 列出所有变量
tar zcppf /保存路径 /文件路径
less 查看分页
netstat 列出所有的tcp连接信息

安装工具
yum groupinstall "Base" -y
yum groupinstall "Development tools" -y
yum groupinstall "Compatibility libraries" -y
yum groupinstall "Debugging tools" -y


删除linux自带jdk
rpm -qa | grep jdk
java-1.7.0-openjdk-1.7.0.45-2.4.3.3.el6.i686
java-1.6.0-openjdk-1.6.0.0-1.66.1.13.0.el6.i686

rpm -qa | grep gcj
libgcj-4.4.7-4.el6.i686

rpm -e --nodeps java-1.7.0-openjdk-1.7.0.45-2.4.3.3.el6.i686



编译
make PREFIX=/application/hadoop/cache/redis install