Using `find -perm` to find when a permission is not set
I want to find the non-readable files in my directory (eg the files with g-r). So I tried this:
find . -perm -g-r
It shows me all of the files?? So I tried this:
find . -perm -g+r
And it showed me only the readable files. It appears that -perm -g-r
mat开发者_如何转开发ches all files. I'm using CentOS 5.5. Am I doing something wrong? It doesn't look like -perm -g-r
does anything useful.
Try:
find . ! -perm -g+r
If you want to find files that are non-readable by you, you could use
find . ! -readable
on my Debian I need to escape the negation "exclamation mark" so in your case it would be
find . \! -perm -g+r -ls
using numbers is also an option. This was my quest:
find . \! -perm /444
to see what really happens use:
find . \! -perm /444 -exec ls -la {} \;
You were able to see all files when you executed the below instruction, because you were executing it as root.
find . -perm -g-r
Try executing as a normal user.
精彩评论