检查PATH是为了确保路径中列出的所有目录都是绝对路径，而且所有者及其所在组以外的人无法执行写入操作。

The path is checked to ensure that each directory listed in the path is absolute and not writable by people other than the owner and group.

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首先我们更改.ssh目录的访问权，只允许所有者拥有读取、写入和执行的权限。

First, we change the access rights for the.ssh directory so that only the owner has read, write, and execute privileges.

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如果rpc具有写入权限(由图5中的acl列出)，则它是可以写入的dekihost ACL所有者。

If RPC has write privileges, by virtue of being listed in the Figure 5 ACL, then it is the dekihost ACL owner to which he can write.

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如果rpc具有写入权限(由图5中的acl列出)，则它是可以写入的dekihost ACL所有者。

If RPC has write privileges, by virtue of being listed in the Figure 5 ACL, then it is the dekihost ACL owner to which he can write.

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