安装vim

 yum provides vim  查看安装指定内容软件包

39 sodu yum install vim-enhanced-7.4.629-7.el7.x86_64 -y

40 sudo yum install vim-enhanced-7.4.629-7.el7.x86_64 -y
41 vim /etc/profile    查看语法有没有高亮