내용 |
[hadoop@master ~]$ hdfs dfs -ls -R /output
drwxr-xr-x - hadoop supergroup 0 2017-07-17 01:18 /output/word_count
-rw-r--r-- 2 hadoop supergroup 0 2017-07-17 01:18 /output/word_count/_SUCCESS
-rw-r--r-- 2 hadoop supergroup 49110 2017-07-17 01:18 /output/word_count/part-r-00000
[hadoop@master ~]$ hadoop fs -lsr /output
lsr: DEPRECATED: Please use 'ls -R' instead.
drwxr-xr-x - hadoop supergroup 0 2017-07-17 01:18 /output/word_count
-rw-r--r-- 2 hadoop supergroup 0 2017-07-17 01:18 /output/word_count/_SUCCESS
-rw-r--r-- 2 hadoop supergroup 49110 2017-07-17 01:18 /output/word_count/part-r-00000
[hadoop@master ~]$ clear
[hadoop@master ~]$ hdfs dfs -du /
689413344 /airline
65 /hello.txt
49110 /output
174734 /speech
253215 /tmp
[hadoop@master ~]$ hdfs dfs -cat /hello.txt
1234567890qwertyuioasdfghjk
123456789qwertyuiop
sdfghjk
edrtyuio
[hadoop@master ~]$ hdfs dfs -text /hello.txt
1234567890qwertyuioasdfghjk
123456789qwertyuiop
sdfghjk
edrtyuio
[hadoop@master ~]$ hdfs dfs -mkdir -p /user/hadoop
[hadoop@master ~]$ hdfs dfs -ls
[hadoop@master ~]$ hdfs dfs -mkdir test
[hadoop@master ~]$ hdfs dfs -ls /user/hadoop
Found 1 items
drwxr-xr-x - hadoop supergroup 0 2017-07-17 19:02 /user/hadoop/test
[hadoop@master ~]$ hdfs dfs -put hello.txt test/
[hadoop@master ~]$ hdfs dfs -ls test
Found 1 items
-rw-r--r-- 2 hadoop supergroup 65 2017-07-17 19:03 test/hello.txt
[hadoop@master ~]$ rm hello.txt
[hadoop@master ~]$ cat hello.txt
cat: hello.txt: No such file or directory
[hadoop@master ~]$ hdfs dfs -get test/hello.txt
[hadoop@master ~]$ cat hello.txt
1234567890qwertyuioasdfghjk
123456789qwertyuiop
sdfghjk
edrtyuio
[hadoop@master ~]$
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