This topic contains 8 replies, has 4 voices, and was last updated by bindu 8 months ago.
December 24, 2014 at 9:26 am #2745
I want know what are the important Hadoop commands we use in the command line while working in the Production environment.
Some of the commands i know are getmerge,set rep command.
NitendraDecember 24, 2014 at 4:14 pm #2767
For the list of Hadoop FS commands that are more or less frequently used in production environment can be found at http://hadooptutorial.info/hdfs-file-system-commands/
and for investigating on any other command you can use the above right corner google search box to find results on the commands.
Let me know if you want to know about any specific command that is not present on this site’s searchJune 9, 2015 at 9:49 am #3576
There are mainly five important commands that you use while accessing HDFS from command line;
put or copyFromLocal
get or copyToLocal
rm or rmrJune 12, 2015 at 10:13 am #3597
Commands are helpful us a lot in the Hadoop training. Balancer,cacheadmin,crypto,datanode,dfsadmin,haadmin are the best administration commands.
sap bi trainingJuly 2, 2016 at 3:55 pm #11458
There are many more commands in “$HADOOP_HOME/bin/hadoop fs” than are demonstrated here, although these basic operations will get you started. Running ./bin/hadoop dfs with no additional arguments will list all the commands that can be run with the FsShell system.Visit this helpful article about Hadoop commands.
I hope it will help youJuly 14, 2016 at 8:21 pm #11464
Firstly, I appreciate your effort with regards to this Website. Thanks for sharing your knowledge.
Here I am with a Very basic question on HDFS commands. When we have “COPYFROMLOCAL” why we have “PUT” is there any specific difference between these commands.
Thanks again for your time on sharing your knowledge…
Syam.August 22, 2016 at 1:35 pm #11489
ratul aroraAugust 22, 2016 at 1:37 pm #11490
hii,you can check some useful commands for hadoop by the below link.
hope, it will be helpful
happy hadoopingAugust 22, 2016 at 2:28 pm #11491
copyFromLocal is similar to put command, except that the source is restricted to a local file reference.
So, basically you can do with put, all that you do with copyFromLocal, but not vice-versa.
copyToLocal is similar to get command, except that the destination is restricted to a local file reference.
Hence, you can use get instead of copyToLocal, but not the other way round.