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【单选题】下列哪个命令可以下载HDFS目录/user/root/live.txt
A.hdfs dfs -get /user/root/live.txt
B.hdfs dfs -download /user/root/live.txt
C.hdfs dfs -put /user/root/live.txt
D.hdfs dfs -move /user/root/live.txt
参考答案和解析
hdfs dfs -get /hdfstest/test.txt
更多 “【单选题】下列哪个命令可以下载HDFS目录/user/root/live.txtA.hdfs dfs -get /user/root/live.txtB.hdfs dfs -download /user/root/live.txtC.hdfs dfs -put /user/root/live.txtD.hdfs dfs -move /user/root/live.txt” 相关考题
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A non-root user can run rsh commands from serverA to serverB, but attempts to run rsh commands by the root user return with apermission error message.What action will resolve the problem?()
A.Add root user to the /etc/hosts.equiv on serverBB.Create $HOME/.rhosts file for the root user on serverBC.Restart the rshd daemon with root enabled option on serverBD.Add entry to allow root user from serverA to the /etc/hosts.allow on serverB
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Pig 支持多种文件命令,下面几个文件名能够令的描述中哪个是错误的()
A. cat,将一个或多个文件的内容输出到屏幕上B.cd,将当前目录修改为其他目录C.cp,从本地系统拷贝文件或目录到HDFs中D. mkdir,创建一个新目录
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下列关于版本类型和用途所述正确的是()A、版本测试用的是release版本,自带root权限,无需要刷rootB、User版本默认不带root权限,需刷boot后才可用adb调试命令C、每个项目的出货版本是user版本D、每个项目的出货版本是release版本
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A non-root user can run rsh commands from serverA to serverB, but attempts to run rsh commands by the root user return with a permission error message. What action will resolve the problem?()A、Add root user to the /etc/hosts.equiv on serverB .B、Create $HOME/.rhosts file for the root user on serverB .C、Restart the rshd daemon with root enabled option on serverB .D、Add entry to allow root user from serverA to the /etc/hosts.allow on serverB .
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单选题在linux中,设置以后新建用户的主目录均放在/user目录下的命令是()。A
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useradd -b /userD
useradd -D、-b /user
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单选题A non-root user can run rsh commands from serverA to serverB, but attempts to run rsh commands by the root user return with apermission error message. What action will resolve the problem?()A
Add root user to the /etc/hosts.equiv on serverBB
Create $HOME/.rhosts file for the root user on serverBC
Restart the rshd daemon with root enabled option on serverBD
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