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/