shell脚本之判断当前内核主版本是否为3，且次版本是否大于10

[root@localhost ~]# cat uname.sh
#!/bin/bash
main=`uname -r | awk -F . '{print $1}'`
minor=`uname -r | awk -F . '{print $2}'`
if [ "$main" -eq 3 ] && [ "$minor" -ge 10 ]
    then 
      echo "main version is :$main  
minor version is :$minor"
    else
      echo "main version is not 3"
fi

[root@localhost ~]# uname -r
3.10.0-1062.el7.x86_64

[root@localhost ~]# sh uname.sh 
main version is :3  
minor version is :10