下列哪个命令可以下载HDFS目录/user/root/live.txt
A: hdfsdfs-get /user/root/live.txt
B: hdfsdfs-download/user/root/live.txt
C: hdfsdfs-put/user/root/live.txt
D: hdfsdfs-move/user/root/live.txt
A: hdfsdfs-get /user/root/live.txt
B: hdfsdfs-download/user/root/live.txt
C: hdfsdfs-put/user/root/live.txt
D: hdfsdfs-move/user/root/live.txt
举一反三
- 下列哪个命令可以下载HDFS目录/user/root/live.txt
- 下列( )命令可以显示出HDFS目录/user/root中的内容。 A: hdfsdfs-dir/user/root/ B: hdfsdfs-report/user/root/ C: hdfsdfs-ls/user/root/ D: hdfsdfs-display/user/root/
- 将root用户的密码设置为“123456”,下列语句正确的是( )。 A: MODIFY USER 'root'@'%' IDENTIFIED BY '123456' B: MODIFY USER 'root'@'%' PASSWORD '123456' C: ALTER USER 'root'@'%' IDENTIFIED BY '123456' D: ALTER USER 'root'@'%' PASSWORD '123456'
- 实现将root用户的密码修改为'1111'的语句，正确的是（） A: alter user 'root'@'localhost' identified by ‘1111’; B: alter user 'root'@'localhost' identified by 1111; C: alter user 'root'@'localhost' =‘1111’; D: set user 'root'@'localhost' =‘1111’;
- 默认情况下，root用户属于以下哪个用户组？ A: user B: admin C: root D: system