[wellylug] permissions munted

[Phillip Hutchings]

On 30/07/2009, at 8:43 PM, Rimu Atkinson wrote:

> Hi all
>
> I copied several tens of gigabytes of files off a NTFS disk and  
> every single file has the most permissive permissions imaginable.  
> Execute and write for everyone (see http://rimu.geek.nz/ 
> Screenshot.png )
>
> If I do chmod -x * then all the directories can't be opened any  
> more, which isn't cool.
>
> How can I set everything to something sane, like
>
> -rw-r--r--  1 rimu rimu       357 2009-07-17 20:56 examples.desktop
> drwxr-xr-x  2 rimu rimu      4096 2009-07-18 09:02 Templates

You want the amazing find command. If you want to do stuff to a bunch  
of files then find probably has the option you want.

find /path/to/base -type d -exec 'chmod' '755' '{}' ';'
find /path/to/base -type f -exec 'chmod' '600' '{}' ';'

This searches all subdirectories and files starting at /path/to/base/.  
-type specifies directory in the first case, then regular file in the  
second. Then we use the -exec command to call chmod. It's a bit  
strange as I single quote every argument so I don't forget to double  
escape. Also {} and ; need to be escaped from the main shell,  
otherwise bad things happen.

If you want to double check replace the -exec... bit with -print,  
it'll just print the files to console.

--
Phillip Hutchings
sitharus at sitharus.com



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