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  Linux directory permissions to read and execute permissions difference
  Add Date : 2018-11-21      
  If you used the ls under Linux, careful you will find that there is actually an executable directory permissions! Such as:

drwxrwxr-x 11 cl cl 4096 at 14:22 on September 25 ./

drwxr-xr-x 49 cl cl 4096 at 16:00 on October 10 ../

drwxrwxr-x 5 cl cl 4096. 9 Yue 23 10:58 algorithm /

drwxrwxr-x 2 cl cl 4096. 9 Yue 23 21:44 temp /

why? ? Internet search a bit only to find that this means:

Executable directory permissions is can you execute the command in the directory. If the directory does not -x permissions, you can not execute any command on the directory, not even cd into the directory. Even if there are still -r directory read permissions (this place is very easy to make mistakes that can have read access to the file into the directory read directory).

If directory permissions have -x, -r without permission, the user can execute the command, you can cd into the directory. But because there is no permission to read the directory, so the directory, even if you can execute ls command, but still do not have permission to read out a document directory.

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