常用HDFS及SHELL命令

常用HDFS及SHELL命令

1.查看目录所占空间

$ hdfs dfs -du -s -h /user/hive/warehouse/xx
1.7 G  /user/hive/warehouse/xx

2.查看存储使用情况

$ hdfs dfsadmin -report
Configured Capacity: 0(0 PB)
Present Capacity: 0(0 PB)
DFS Remaining: 0(0 TB)
DFS Used: 0(0 PB)
DFS Used%: 0%
Under replicated blocks: 0
Blocks with corrupt replicas: 1
Missing blocks: 0
Missing blocks (with replication factor 1): 0

3.vim

shift+g(G):最后一行 gg:第一行 也可:0

4.查找文件或含某字符串的文件

find /opt/edw/ -name xx* # 根据文件名查找文件
grep -rn "xx" /opt/edw/ # 查看含某字符串的文件