Hadoop: copyToLocal: Copy file from hdfs to local system

“copyToLocal” command is used to copy data from HDFS to local system.

Usage
hadoop fs [generic options] -copyToLocal [-p] [-ignoreCrc] [-crc] <src> ... <localdst>

 

Example

hadoop fs -copyToLocal /user/cloudera/demo4/a.txt /home/cloudera/Desktop/dir1 

 

Above snippet copy the file '/user/cloudera/demo4/a.txt' from HDFS to your system folder '/home/cloudera/Desktop/dir1'.

 

$ls /home/cloudera/Desktop/dir1
$
$hadoop fs -ls /user/cloudera/demo4
Found 3 items
-rw-r--r--   1 cloudera cloudera          2 2022-03-23 09:03 /user/cloudera/demo4/a.txt
-rw-r--r--   1 cloudera cloudera         35 2022-03-23 09:03 /user/cloudera/demo4/b.txt
-rw-r--r--   1 cloudera cloudera         55 2022-03-23 09:03 /user/cloudera/demo4/c.txt
$
$
$hadoop fs -copyToLocal /user/cloudera/demo4/a.txt /home/cloudera/Desktop/dir1
$
$ls /home/cloudera/Desktop/dir1
a.txt

 

Referred Articles

http://hadoop.apache.org/docs/r2.7.0/hadoop-project-dist/hadoop-common/FileSystemShell.html

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