Dfyjkt

I had a strange situation where I've found a number of files and folders that had 000 permissions set. This was easily repairable via:

sudo find . -perm 000 -type f -exec chmod 664 ; 
sudo find . -perm 000 -type d -exec chmod 775 ;

Unfortunately I suddenly realized the problem was a bit more complicated with some odd permissions such as 044 and some other strange settings. It turns out that these are strewn about and unpredictable.

Is there a way to search for permissions such as 0** or other such very limiting permission configurations?

I'd use something like this:

find . ! -perm -u=r ! -perm -u=w ! -perm -u=x -ls

Or if you prefer the octal notation:

find . ! -perm -400 ! -perm -200 ! -perm -100 -ls

Unfortunately, no idea, how to take it as one -perm option.

That syntax above is standard except for the -ls part (common but not POSIX) which you can replace with -exec ls -disl + on systems where find doesn't support -ls to get a similar output.

With GNU find, you can do this by looking for files which don’t match “any bit set for the owner”:

find . ! -perm /700

The same in e.g. FreeBSD find is

find . ! -perm +700

Both of these work in the same way. -perm /700 or -perm +700 match if any of the owner permission bits are set; ! negates that, so ! -perm /700 or ! -perm +700 match if none of the owner permission bits are set. The other bits are ignored.

If you use sfind or any program using libfind or if you use BSD find, you may use:

find path -perm +0xxx

to find files where any of the bits mentioned in the pattern are set, so

find . ! -perm +0700

should work in your case. BTW: this is also supported by GNU find.

Note that this is an extension that is neither mentioned in POSIX nor implemented in a SVr4 based find.