HDFS-常用命令

hadoop fs -help rmshel

hadoop fs -ls /

hadoop fs -mkdir -p /user/ha

hadoop fs -moveFromLocal ~/test.txt /home/ha/

hadoop fs -appendToFile /a.txt /b.txt

hadoop fs -cat /user/ysir/a.txt

hadoop fs -chmod 777 /a.txt
hadoop fs -chown admin:ysir /a.txt

hadoop fs -copyFromLocal a.txt /

hadoop fs -copyToLocal /a.txt ~/

hadoop fs -cp /aaa/a.txt /bbb/

hadoop fs -mv /aaa/a.txt /bbb/ 

hadoop fs -get /aaa/a.txt

hadoop fs -getmerge /logs/* ~/logs.log # 将HDFS上/logs/路径下的所有文件合并下载到本地~/logs.log文件中

hadoop fs -put ~/a.txt /

hadoop fs -tail /a.txt

hadoop fs -rm /user/ysir/a.txt

hadoop fs -mkdir /temp

hadoop fs -du -s -h /temp

hadoop fs -setrep 5 /a.txt