查看操作系统类型---返回结果Linux 适合与字符比较
cat /proc/sys/kernel/ostype
cat /proc/version
shell :
www.jb51.net/article/51574.htm
president.blog.51cto.com/4990508/854647/
president.blog.51cto.com/4990508/854249
linux interview :
blog.csdn.net/wh211212/article/details/52856240
402753795.blog.51cto.com/10788998/1732305/
docker:
http://blog.csdn.net/wh211212/article/details/53208960