If you are the one who is keen to learn the technology then learn the advanced certification course from the best Hadoop training institute<\/a> who can help guide you about the course from the 0 Level to Advanced level. So don\u2019t just dream to become the certified Pro Developer Achieve it by choosing the best World classes Hadoop Training institute<\/a> which consists of World-class Trainers.<\/p>\n <\/p>\n We, Prwatech listed some of the Top Hadoop HDFS Commands which Every Hadoop Developer should know about. So follow the Below Mentioned Hadoop Basic HDFS Commands and Learn the Advanced Hadoop course from the best Hadoop Trainer like a Pro.<\/p>\n <\/p>\n ==> \/home\/training<\/p>\n <\/p>\n \u21d2\u00a0Hadoop version<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -ls \/<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -count hdfs:\/<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fsck – \/<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop balancer<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -mkdir \/user\/training\/Hadoop<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -put data\/sample.txt\/user\/training\/Hadoop<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -ls \/user\/training\/Hadoop<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -put data\/retail \/user\/training\/Hadoop<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -ls<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -rm Hadoop\/retail\/customers<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -ls Hadoop\/retail\/customers<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -rm hadoop\/retail\/*<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -expunge<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -rm -r Hadoop\/retail<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -ls Hadoop<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -copyFromLocal \/home\/training\/purchases.txt Hadoop\/<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -cat hadoop\/purchases.txt<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -copyToLocal hadoop\/purchases.txt \/home\/training\/data<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -cp \/user\/training\/*.txt \/user\/training\/Hadoop<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -get hadoop\/sample.txt \/home\/training\/<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -tail hadoop\/purchases.txt<\/p>\n <\/p>\n <\/p>\n Use ‘-chmod’ command to change permissions of a file sudo -u hdfs Hadoop fs -chmod 600 hadoop\/purchases.txt<\/p>\n <\/p>\n \u21d2 hadoop fs -ls hadoop\/purchases.txt<\/p>\n sudo -u hdfs Hadoop fs -chown root: root hadoop\/purchases.txt<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -ls hadoop\/purchases.txt<\/p>\n sudo -u hdfs Hadoop fs -chgrp training hadoop\/purchases.txt<\/p>\n <\/p>\n \u21d2 Hadoop fs -mv Hadoop apache_hadoop<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -setrep -w 2 apache_hadoop\/sample.txt<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs -expunge\u00a0sudo -u hdfs hdfs dfsadmin -safemode leave<\/p>\n <\/p>\n \u21d2\u00a0\u00a0Hadoop fs<\/p>\n \u21d2\u00a0\u00a0Hadoop fs -help<\/p>\n I hope you like Prwatech<\/a>\u00a0Hadoop Basic HDFS Commands, Get the Advanced certification from World-class Trainers of Best Hadoop Training Institute<\/a>.<\/p>\n <\/p>\n cloudera@cloudera-vm:~$ hbase shell<\/strong><\/p>\n <\/p>\n hbase(main):001:0> list<\/strong> <\/p>\n hbase(main):002:0> create ‘batch’, ‘details’<\/p>\n <\/p>\n hbase(main):003:0> put ‘batch’, ‘row1’, ‘details:name’, ‘Rhiddhiman’<\/p>\n hbase(main):004:0> put ‘batch’, ‘row2’, ‘details:name’, ‘Rohit’<\/p>\n hbase(main):005:0> put ‘batch’, ‘row3’, ‘details:name’, ‘Dipankar’<\/p>\n hbase(main):006:0> put ‘batch’, ‘row4’, ‘details:name’, ‘Kalyan’<\/p>\n <\/p>\n hbase(main):007:0> scan ‘batch’<\/strong><\/p>\n <\/p>\n hbase(main):008:0> put ‘batch’, ‘row2’, ‘details:name’, ‘Jayanta’<\/strong><\/p>\n <\/p>\n hbase(main):009:0> scan ‘batch’<\/strong><\/p>\n <\/p>\n hbase(main):010:0> put ‘batch’, ‘row3’, ‘details:name’, ‘Dhrubajyoti’<\/strong><\/p>\n <\/p>\n hbase(main):011:0> scan ‘batch’<\/strong><\/p>\n <\/p>\n hbase(main):012:0> get ‘batch’, ‘row2′, {COLUMN=>’details:name’, VERSIONS=>2}<\/strong><\/p>\n hbase(main):013:0> put ‘batch’, ‘row3’, ‘details:name’, ‘Banajit’<\/p>\n hbase(main):014:0> get ‘batch’, ‘row3′, {COLUMN=>’details:name’, VERSIONS=>3}<\/p>\n <\/p>\n hbase(main):015:0> put ‘batch’, ‘row1’, ‘details:address’, ‘Marathahalli’<\/p>\n hbase(main):016:0> put ‘batch’, ‘row1’, ‘details:age’, ’27’<\/p>\n hbase(main):017:0> put ‘batch’, ‘row1’, ‘details:course’, ‘Hadoop’<\/p>\n hbase(main):018:0> put ‘batch’, ‘row2’, ‘details:address’, ‘BTM’<\/p>\n hbase(main):019:0> put ‘batch’, ‘row3’, ‘details:address’, ‘Whitefield’<\/p>\n hbase(main):020:0> put ‘batch’, ‘row4’, ‘details:address’, ‘Electronics City’<\/p>\n <\/p>\n hbase(main):021:0> scan ‘batch’<\/strong><\/p>\n <\/p>\n hbase(main):031:0> describe ‘batch’<\/strong><\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Hadoop Basic HDFS Commands Hadoop HDFS Commands, welcome to the world of Hadoop HDFS Basic commands. Are you the one who is looking forward to knowing the apache Hadoop HDFS commands List which comes under Hadoop technology? Or the one who is very keen to explore the list of all the HDFS commands […]<\/p>\n","protected":false},"author":1,"featured_media":2900,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,1641],"tags":[44],"class_list":["post-264","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hadoop","category-hdfs","tag-hadoop-hdfs-commands"],"acf":[],"yoast_head":"\nOpen a terminal window to the current working directory.<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/1-23.png\")
<\/strong><\/p>\nPrint the Hadoop version<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/2-23.png\")
<\/strong><\/p>\nList the contents of the root directory in HDFS<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/3-22.png\")
<\/strong><\/p>\nCount the number of directories, files, and bytes under the paths<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/4-18.png\")
<\/strong><\/p>\nRun a DFS filesystem checking utility<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/5-19.png\")
<\/strong><\/p>\nRun a cluster balancing utility<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/6-18.png\")
<\/strong><\/p>\nCreate a new directory named “Hadoop” below the \/user\/training directory in HDFS.<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/7-18.png\")
<\/strong><\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/8-18.png\")
<\/strong><\/p>\nAdd a sample text file from the local directory named “data” to the new directory you created in HDFS during the previous step<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/801.png\")
<\/strong><\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/802.png\")
<\/strong><\/p>\nList the contents of this new directory in HDFS<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/9-13.png\")
<\/strong><\/p>\nAdd the entire local directory called “retail” to the \/user\/training directory in HDFS<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/10-13.png\")
<\/strong><\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/101.png\")
<\/strong><\/p>\nSince \/user\/training is your home directory in HDFS, any command that does not have an absolute path is interpreted as relative to that directory. The next command will, therefore,\u00a0list your home directory, and should show the items you’ve just added there<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/11-12.png\")
<\/strong><\/p>\nDelete a file ‘customers’ from the “retail”\u00a0 \u00a0directory<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/131.png\")
<\/strong><\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/132.png\")
<\/strong><\/p>\nEnsure this file is no longer in HDFS<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/14-12.png\")
<\/strong><\/p>\nDelete all files from the “retail” directory using a wildcard<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/151.png\")
<\/strong><\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/152.png\")
<\/strong><\/p>\nTo empty the trash<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/16-10.png\")
<\/strong><\/p>\nFinally, remove the entire retail directory and all
\nof its contents in HDFS<\/h3>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/17-10.png\")
<\/strong><\/p>\nList the Hadoop directory again<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/18-10.png\")
<\/strong><\/p>\nAdd the purchases.txt file from the local directory named “\/home\/training\/” to the Hadoop directory you created in HDFS<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/19-9.png\")
<\/strong><\/p>\nTo view the contents of your text file purchases.txt which is present in your Hadoop directory<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/20-8.png\")
<\/strong><\/p>\nAdd the purchases.txt file from “Hadoop” directory which is present in HDFS directory to the directory “data” which is present in your local directory<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/21-8.png\")
<\/strong><\/p>\ncp is used to copy files between directories present in HDFS<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/22-5.png\")
<\/strong><\/p>\n‘-get’ command can be used alternatively to ‘-copyToLocal’ command<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/23-5.png\")
<\/strong><\/p>\nDisplay last kilobyte of the file “purchases.txt” to stdout<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/24-5.png\")
<\/strong><\/p>\nDefault file permissions are 666 in HDFS<\/h3>\n
\n\u21d2\u00a0\u00a0Hadoop fs -ls hadoop\/purchases.txt<\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/25-4.png\")
<\/strong><\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/251.png\")
<\/strong><\/p>\nDefault names of owner and group are training, training\u00a0\u00a0Use ‘-chown’ to change owner name and group name simultaneously<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/261.png\")
<\/strong><\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/262.png\")
<\/strong><\/p>\nThe default\u00a0name of group is training Use ‘-chgrp’ command to change the group name<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/271.png\")
<\/strong><\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/272.png\")
<\/strong><\/p>\nMove a directory from one location to other<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/28-3.png\")
<\/strong><\/p>\nThe default replication factor to a file is 3. Use ‘-setrep’ command to change the replication factor of a\u00a0 file<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/29-2.png\")
<\/strong><\/p>\nCommand to make the name node leave safe\u00a0 mode<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/31-2.png\")
<\/strong><\/p>\nList all the Hadoop file system shell commands<\/h3>\n
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/321.png\")
<\/strong><\/p>\n![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/322.png\")
<\/p>\n![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/331.png\")
![\"Hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/332.png\")
<\/strong><\/p>\n\n
OPEN TERMINAL AND GO TO HBASE SHELL :<\/h3>\n<\/li>\n<\/ul>\n
![\"\"](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/15-3.png\")
<\/p>\n\n
CHECK WHAT TABLES EXISTS IN THE SYSTEM :<\/h3>\n<\/li>\n<\/ul>\n
\nTABLE<\/strong><\/p>\n![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/1-3.png\")
<\/p>\n\n
CREATE TABLE :<\/h3>\n<\/li>\n<\/ul>\n
![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/2-3.png\")
<\/p>\n\n
ENTER DATA INTO THE TABLE :<\/h3>\n<\/li>\n<\/ul>\n
![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/3-2.png\")
<\/p>\n\n
CHECK DATA ENTERED IN THE TABLE :<\/h3>\n<\/li>\n<\/ul>\n
![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/4-2.png\")
<\/p>\n\n
CHANGE VALUE OF A PARTICULAR COLUMN IN A ROW :<\/h3>\n<\/li>\n<\/ul>\n
![\"\"](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/5-2.png\")
<\/p>\n\n
CHECK DATA AFTER MODIFICATION<\/h3>\n<\/li>\n<\/ul>\n
![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/6-2.png\")
<\/p>\n\n
CHANGE VALUE OF A PARTICULAR COLUMN IN A ROW :<\/h3>\n<\/li>\n<\/ul>\n
![\"\"](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/7-2.png\")
<\/p>\n\n
CHECK DATA AFTER MODIFICATION :<\/h3>\n<\/li>\n<\/ul>\n
![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/8-2.png\")
<\/p>\n\n
CHECK VALUE THAT HAS BEEN CHANGED :<\/h3>\n<\/li>\n<\/ul>\n
![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/9-2.png\")
<\/p>\n![\"\"](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/10-3.png\")
<\/p>\n![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/11-3.png\")
<\/p>\n\n
ENTER REMAINING DATA :<\/h3>\n<\/li>\n<\/ul>\n
![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/12-3.png\")
<\/p>\n\n
CHECK DATA :<\/h3>\n<\/li>\n<\/ul>\n
![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/13-3.png\")
<\/p>\n\n
DESCRIPTION OF TABLE\u00a0:<\/h3>\n<\/li>\n<\/ul>\n
![\"hadoop](\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2019\/02\/14-4.png\")
<\/p>\n