linux查看版本和内核命令
1. 查看内核

lsb_release -aLSB Version:    :core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarchDistributor ID: CentOSDescription:    CentOS release 5.6 (Final)Release:        5.6Codename:       Final