独立模式错误:权限被拒绝

Question

在独立模式下运行代码时，

laxmikant@laxmikant-Inspiron-1464:~/Work/hadoop-0.21.0$ bin/hadoop jar hadoop-mapred examples-0.21.0.jar grep input output '[a-z.]+'
bash: /home/laxmikant/java/jdk1.7.0_04/bin/java: Permission denied
bash: /home/laxmikant/java/jdk1.7.0_04/bin/java: Permission denied`

如何消除这些错误?我设置了java_home &正确的路径。我试着在网上搜索，但是找不到。你能发送分配权限所需的命令吗?具体步骤?

Answer 1

进入/home/laxmikant/java/jdk1.7.0_04/bin/文件夹，执行命令:

$ ls -lh | grep java

查看Java是否有执行权限。如果没有，运行命令:

$ chmod +x java