摘要: 几种查看linux版本信息的方法:
    uname -a
    cat /proc/version
    cat /etc/issue
    lsb_release -a
详解 lsb_release -a
    登录到服务器执行 lsb_release -a ,即可列出所有版本信息,例如:
        [root@3.5.5Biz-46 ~]# lsb_release -a   
        LSB Version: 1.3   
        Distributor ID: RedHatEnterpriseAS    
        Description: Red Hat Enterprise Linux AS release 4 (Nahant Update 1)   
        Release: 4   
        Codename: NahantUpdate1    
        [root@3.5.5  
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