hadoop学习笔记之三：hadoop hdfs fs 指令学习

3ewsd

　　查看指令参数：


[iyunv@bigdata2 bin]# ./hadoop fs --help
[-lsr <path>]
[-du <path>]
[-dus <path>]
[-count[-q] <path>]
[-mv <src> <dst>]
[-cp <src> <dst>]
[-rm [-skipTrash] <path>]
[-rmr [-skipTrash] <path>]
[-expunge]
[-put <localsrc> ... <dst>]
[-copyFromLocal <localsrc> ... <dst>]
[-moveFromLocal <localsrc> ... <dst>]
[-get [-ignoreCrc] [-crc] <src> <localdst>]
[-getmerge <src> <localdst> [addnl]]
[-cat <src>]
[-text <src>]
[-copyToLocal [-ignoreCrc] [-crc] <src> <localdst>]
[-moveToLocal [-crc] <src> <localdst>]
[-mkdir <path>]
[-setrep [-R] [-w] <rep> <path/file>]
[-touchz <path>]
[-test -[ezd] <path>]
[-stat [format] <path>]
[-tail [-f] <file>]
[-chmod [-R] <MODE[,MODE]... | OCTALMODE> PATH...]
[-chown [-R] [OWNER][:[GROUP]] PATH...]
[-chgrp [-R] GROUP PATH...]
[-help [cmd]]
　　做一些尝试

[iyunv@bigdata2 bin]# ./hadoop fs -ls
Warning: $HADOOP_HOME is deprecated.
Found 1 items
drwxr-xr-x   - root supergroup          0 2014-11-27 16:20 /user/root/testhdfs
[iyunv@bigdata2 bin]# ./hadoop fs -mkdir in
Warning: $HADOOP_HOME is deprecated.
[iyunv@bigdata2 bin]# ./hadoop fs -lsr
Warning: $HADOOP_HOME is deprecated.
drwxr-xr-x   - root supergroup          0 2014-11-27 17:07 /user/root/in
-rw-r--r--   3 root supergroup         12 2014-11-27 17:07 /user/root/in/helloword.txt
drwxr-xr-x   - root supergroup          0 2014-11-27 17:09 /user/root/out
drwxr-xr-x   - root supergroup          0 2014-11-27 17:08 /user/root/out/helloword_20141127170832
-rw-r--r--   3 root supergroup          0 2014-11-27 17:08 /user/root/out/helloword_20141127170832/_SUCCESS
-rw-r--r--   3 root supergroup         12 2014-11-27 17:08 /user/root/out/helloword_20141127170832/part-r-00000
drwxr-xr-x   - root supergroup          0 2014-11-27 17:09 /user/root/out/helloword_20141127170921
-rw-r--r--   3 root supergroup          0 2014-11-27 17:09 /user/root/out/helloword_20141127170921/_SUCCESS
-rw-r--r--   3 root supergroup         12 2014-11-27 17:09 /user/root/out/helloword_20141127170921/part-r-00000
drwxr-xr-x   - root supergroup          0 2014-11-27 16:20 /user/root/testhdfs

[iyunv@bigdata2 bin]# ./hadoop fs -du
Warning: $HADOOP_HOME is deprecated.
Found 3 items
12          hdfs://bigdata2:9000/user/root/in
24          hdfs://bigdata2:9000/user/root/out
0           hdfs://bigdata2:9000/user/root/testhdfs

[iyunv@bigdata2 bin]# ./hadoop fs -dus
Warning: $HADOOP_HOME is deprecated.
hdfs://bigdata2:9000/user/root  36
[iyunv@bigdata2 bin]# ./hadoop fs -mv /ussr/root/testhdfs  /user/root/out
Warning: $HADOOP_HOME is deprecated.
mv: /ussr/root/testhdfs: No such file or directory
[iyunv@bigdata2 bin]# ./hadoop fs -mv hdfs://bigdata2:9000/user/root/testhdfs hdfs://bigdata2:9000/user/root/out
Warning: $HADOOP_HOME is deprecated.
[iyunv@bigdata2 bin]# ./hadoop fs -lsr
Warning: $HADOOP_HOME is deprecated.
drwxr-xr-x   - root supergroup          0 2014-11-27 17:07 /user/root/in
-rw-r--r--   3 root supergroup         12 2014-11-27 17:07 /user/root/in/helloword.txt
drwxr-xr-x   - root supergroup          0 2014-11-27 17:15 /user/root/out
drwxr-xr-x   - root supergroup          0 2014-11-27 17:08 /user/root/out/helloword_20141127170832
-rw-r--r--   3 root supergroup          0 2014-11-27 17:08 /user/root/out/helloword_20141127170832/_SUCCESS
-rw-r--r--   3 root supergroup         12 2014-11-27 17:08 /user/root/out/helloword_20141127170832/part-r-00000
drwxr-xr-x   - root supergroup          0 2014-11-27 17:09 /user/root/out/helloword_20141127170921
-rw-r--r--   3 root supergroup          0 2014-11-27 17:09 /user/root/out/helloword_20141127170921/_SUCCESS
-rw-r--r--   3 root supergroup         12 2014-11-27 17:09 /user/root/out/helloword_20141127170921/part-r-00000
drwxr-xr-x   - root supergroup          0 2014-11-27 16:20 /user/root/out/testhdfs

[iyunv@bigdata2 bin]# ./hadoop fs -cp  hdfs://bigdata2:9000/user/root/out/testhdfs hdfs://bigdata2:9000/user/root/
Warning: $HADOOP_HOME is deprecated.
[iyunv@bigdata2 bin]# ./hadoop fs -lsr
Warning: $HADOOP_HOME is deprecated.
drwxr-xr-x   - root supergroup          0 2014-11-27 17:07 /user/root/in
-rw-r--r--   3 root supergroup         12 2014-11-27 17:07 /user/root/in/helloword.txt
drwxr-xr-x   - root supergroup          0 2014-11-27 17:15 /user/root/out
drwxr-xr-x   - root supergroup          0 2014-11-27 17:08 /user/root/out/helloword_20141127170832
-rw-r--r--   3 root supergroup          0 2014-11-27 17:08 /user/root/out/helloword_20141127170832/_SUCCESS
-rw-r--r--   3 root supergroup         12 2014-11-27 17:08 /user/root/out/helloword_20141127170832/part-r-00000
drwxr-xr-x   - root supergroup          0 2014-11-27 17:09 /user/root/out/helloword_20141127170921
-rw-r--r--   3 root supergroup          0 2014-11-27 17:09 /user/root/out/helloword_20141127170921/_SUCCESS
-rw-r--r--   3 root supergroup         12 2014-11-27 17:09 /user/root/out/helloword_20141127170921/part-r-00000
drwxr-xr-x   - root supergroup          0 2014-11-27 16:20 /user/root/out/testhdfs
drwxr-xr-x   - root supergroup          0 2014-11-27 17:16 /user/root/testhdfs

[iyunv@bigdata2 bin]# ./hadoop fs -rmr /user/root/testhdfs
Warning: $HADOOP_HOME is deprecated.
Deleted hdfs://bigdata2:9000/user/root/testhdfs
[iyunv@bigdata2 bin]#
[iyunv@bigdata2 bin]# ./hadoop fs -copyFromLocal  /root/software/hadoop-1.0.1/bin/start-all.sh  /user/root/out/testhdfs
Warning: $HADOOP_HOME is deprecated.
[iyunv@bigdata2 bin]# ./hadoop fs -lsr
Warning: $HADOOP_HOME is deprecated.
drwxr-xr-x   - root supergroup          0 2014-11-27 17:07 /user/root/in
-rw-r--r--   3 root supergroup         12 2014-11-27 17:07 /user/root/in/helloword.txt
drwxr-xr-x   - root supergroup          0 2014-11-27 17:15 /user/root/out
drwxr-xr-x   - root supergroup          0 2014-11-27 17:08 /user/root/out/helloword_20141127170832
-rw-r--r--   3 root supergroup          0 2014-11-27 17:08 /user/root/out/helloword_20141127170832/_SUCCESS
-rw-r--r--   3 root supergroup         12 2014-11-27 17:08 /user/root/out/helloword_20141127170832/part-r-00000
drwxr-xr-x   - root supergroup          0 2014-11-27 17:09 /user/root/out/helloword_20141127170921
-rw-r--r--   3 root supergroup          0 2014-11-27 17:09 /user/root/out/helloword_20141127170921/_SUCCESS
-rw-r--r--   3 root supergroup         12 2014-11-27 17:09 /user/root/out/helloword_20141127170921/part-r-00000
drwxr-xr-x   - root supergroup          0 2014-11-27 17:19 /user/root/out/testhdfs
-rw-r--r--   1 root supergroup       1166 2014-11-27 17:19 /user/root/out/testhdfs/start-all.sh
[iyunv@bigdata2 bin]# ./hadoop fs -copyToLocal  /user/root/in/helloword.txt /root/
Warning: $HADOOP_HOME is deprecated.
[iyunv@bigdata2 bin]# ls -l /root
total 128
-rw-------. 1 root root  1556 Feb 22  2014 anaconda-ks.cfg
drwxr-xr-x. 2 root root  4096 Mar 10  2014 bea
drwxr-xr-x. 2 root root  4096 Feb 23  2014 Desktop
drwxr-xr-x. 2 root root  4096 Feb 22  2014 Documents
drwxr-xr-x. 2 root root  4096 Feb 23  2014 Downloads
-rw-r--r--  1 root root    12 Nov 27 17:21 helloword.txt
-rw-r--r--. 1 root root 49565 Feb 22  2014 install.log
-rw-r--r--. 1 root root 10033 Feb 22  2014 install.log.syslog
drwxr-xr-x. 2 root root  4096 Feb 22  2014 Music
drwxr-xr-x. 3 root root  4096 Mar 10  2014 Oracle
drwxr-xr-x. 2 root root  4096 Feb 22  2014 Pictures
drwxr-xr-x. 2 root root  4096 Feb 22  2014 Public
drwxr-xr-x. 6 root root  4096 Nov 27 16:07 software
drwxr-xr-x. 2 root root  4096 Feb 22  2014 Templates
drwxr-xr-x  3 root root  4096 Nov 26 17:25 u
drwxr-xr-x. 2 root root  4096 Feb 22  2014 Videos
drwxr-xr-x  5 root root  4096 Nov 27 15:57 workspace
[iyunv@bigdata2 bin]#