hadoop的hdfs命令

[root@ldy conf]# hadoop fs -ls / ls和linux命令差不多

Warning: $HADOOP_HOME is deprecated.

Found 1 items

drwxr-xr-x - root supergroup 0 2016-07-05 15:55 /user

[root@ldy conf]#

[root@ldy conf]# hadoop fs -mkdir /user/root/zby 创建一个目录和linux命令差不多

Warning: $HADOOP_HOME is deprecated.

[root@ldy conf]# hadoop fs -ls /user/root/

Warning: $HADOOP_HOME is deprecated.

Found 4 items

-rw-r--r-- 1 root supergroup 2052 2016-07-05 16:01 /user/root/hadoop-metrics2.properties

-rw-r--r-- 1 root supergroup 2460 2016-07-05 15:55 /user/root/input

drwxr-xr-x - root supergroup 0 2016-07-05 15:57 /user/root/input1

drwxr-xr-x - root supergroup 0 2016-07-05 16:13 /user/root/zby

[root@ldy conf]#

[root@ldy conf]hadoop fs -put hadoop-env.sh /user/root/ 把文件上传到指定目录

Warning: $HADOOP_HOME is deprecated.

[root@ldy conf]#

[root@ldy conf]# hadoop fs -cat /user/root/hadoop-env.sh 查看上传的文件

Warning: $HADOOP_HOME is deprecated.

# Set Hadoop-specific environment variables here.

# The only required environment variable is JAVA_HOME. All others are

# optional. When running a distributed configuration it is best to

# set JAVA_HOME in this file, so that it is correctly defined on

[root@ldy conf]# hadoop fs -get /user/root/hadoop-env.sh hadoop-env.sh3 下载指定文件

Warning: $HADOOP_HOME is deprecated.

[root@ldy conf]# ls hadoop-env.sh3 查看下载下来的文件

hadoop-env.sh3

[root@ldy conf]#