Re: find/list read only files

From: Alan Connor (zzzzzz_at_xxx.yyy)
Date: 06/29/04 

Date: Tue, 29 Jun 2004 05:40:25 GMT

On 28 Jun 2004 21:03:30 -0700, Tron Thomas <tron.thomas@verizon.net> wrote:
>
>
> In DOS a person can type:
>
> dir /ar
>
> and it will display all the files in the current directory that has a
> read only attribute.
>
> What is an eqivalent UNIX command that will accomplish the same task?

Unix/Linux permissions are a bit more complex than DOS permissions.

It's simpler if you are looking for files with specific permissions.

find . -type f -perm 440 -maxdepth 1 -print

would find all of the regular files in your current directory with
-r--r----- permissions, which is to say that user and group had
only read permissions and other had no permissions.

ls -l | grep '^-r--r-----'

would accomplish the same thing.

(drop the "-maxdepth 1" if you want it to search through all of
the sub-directories too)

If you wanted to find every file with read-only permissions of every
possible combination, the script gets quite a bit longer.

man find, man chmod, man grep

This is one of the reasons that Unix/Linux are so much more secure
than DOS/Windoze. It's a tradeoff...

AC

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