Linux 为什么我无法访问此文件夹？
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Why can't I access this folder?
提问by Rick Hodgin
A while back I bought a 1TB USB external drive. I formatted it ext4 in Ubuntu and copied a bunch of files / folders to it from several machines, all to /home/machinename/whatever, respectively.
不久前，我买了一个 1TB 的 USB 外置驱动器。我在 Ubuntu 中将其格式化为 ext4，并将一堆文件/文件夹从几台机器复制到它，分别复制到 /home/machinename/whatever。
At some point I ran a chmod -R shell command on it to change the permissions. That was months ago and I don't remember what I typed but it made the drive so I could only access its /home folder as root. This wasn't a problem because I could still access everything, but today I decided to try to fix it.
在某些时候，我在其上运行了一个 chmod -R shell 命令来更改权限。那是几个月前的事了，我不记得我输入了什么，但它制作了驱动器，所以我只能以 root 身份访问它的 /home 文件夹。这不是问题，因为我仍然可以访问所有内容，但今天我决定尝试修复它。
I went to my shell as root, went to that drive and typed:
我以 root 身份进入我的 shell，进入那个驱动器并输入：
chown -R rick:rick ./
chmod -R 666 ./
It seemed to work. That home directory and everything else in it now shows up as rw for each:
它似乎奏效了。该主目录及其中的所有其他内容现在都显示为 rw：
rick@rick64:/media/aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee$ ls -l
drw-rw-rw- 7 rick rick 4096 2012-03-04 13:08 home
So, if I try to access that directory with the shell, I get:
因此，如果我尝试使用 shell 访问该目录，则会得到：
rick@rick64:/media/aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee$ ls -l
drw-rw-rw- 7 rick rick 4096 2012-03-04 13:08 home
rick@rick64:/media/aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee$ cd home
bash: cd: home: Permission denied
rick@rick64:/media/aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee$ _
When I access it with nautilus I can see the multiple machine names within the /home/ folder, but they all appear with a file icon. I can right-click on them and choose "Properties" but it won't let me see the permissions.
当我使用 nautilus 访问它时，我可以看到 /home/ 文件夹中的多个机器名称，但它们都带有一个文件图标。我可以右键单击它们并选择“属性”，但它不会让我看到权限。
Am baffled. Why can't I access that folder? I'm the owner? I'm even the group. I have r/w privileges. What am I doing wrong?
我很困惑。为什么我无法访问该文件夹？我是业主？我什至是这个群体。我有读写权限。我究竟做错了什么？
采纳答案by J?rg W Mittag
You're neither trying to read (list) nor write (create a new entry) the directory. You want to enter it, therefore you need (slightly misnamed in the case of directories) exexute permissions.
您既不尝试读取（列出）也不尝试写入（创建新条目）目录。您想输入它，因此您需要（在目录的情况下稍微错误命名）e xexute 权限。
