Fixing a permission problem

szboardstretcher · 06-24-2011, 11:04 AM

Quickest way to restore permissions on files?

Someone changed every file on the system to 0000. I have a backup, yes. But I don't want to copy every single file back over.

Is there a way to just restore the permissions from the backup?

Thanks.

T3RM1NVT0R · 06-24-2011, 12:57 PM

Hi there,

If you have taken the backup of file system permissions before, then you can try the following: http://www.concrete5.org/documentati...ions-in-linux/

Else I am not aware of any other way.

crts · 06-24-2011, 03:26 PM

Hi,

here is some bash code that should also work. Assuming that your backup-partition is mounted on /mnt

Code:

while read FILE; do
  echo chmod "$(stat -c %a ${FILE})" "${FILE/\/mnt}"
done < <(find /mnt -wholename /mnt/mnt -prune -o -type f -print 2>/dev/null)

Remove the 'echo' if the output looks alright.