输入的命令：bin/hdfs dfs -put ~/input
提示信息：Java HotSpot(TM) Server VM warning: You have loaded library /home/ubuntu/下载/hadoop-2.7.2/lib/native/libhadoop.so.1.0.0 which might have disabled stack guard. The VM will try to fix the stack guard now.
It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.
16/04/09 10:50:16 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
put: `.': No such file or directory