chmod equivalent to find commands

[Loren M. Lang]

On Sat, Mar 12, 2005 at 06:53:59AM -0500, Fafa Diliha Romanova wrote:
> hello.
> 
> i know there's an equivalent to these two find commands that
> can be summed up in one chmod command:
> 
> find . -type d -exec chmod 755 {} \;
> find . -type f -exec chmod 644 {} \;

The EXACT equivalent would be:

find . -type d -exec chmod u=rwx,go=rx {} \;
find . -type f -exec chmod u=rw,go=r {} \;

But I take it that that isn't exactly what your looking for.  Your
probably looking for something like "chmod -R u=rwX,go=rX ."

> 
> it fixes my permissions ...
> i haven't tested this yet but i think it's wrong: chmod -R u+rwX,a+rX

This may work it depends on exactly what you need to do and how bad your
permissions are messed up.  Instead of a+rX, it might be better to do
go+rX since you already have u covered, but I don't think it will make a
big difference.  Also, this adds to the existing permissions, it won't
take away any permissions like my example earlier does.  Lastly, the big
difference between this and the find version is that the find version,
both mine and yours, will set the execute bit on all directories and not
on any normal files where the recursive chmod with the X permission with
set the x permission on any file/directory that already has at least one
type of execute permission already set and not on any other files or
directories.  So if your permissions are messed so badly that you have
directories without any execute permission, this won't fix that.  The
find version on the other hand will ignore everything that is not a
normal file or directory (i.e. fifos, sockets, device files), but this
probably won't be a big deal either.  The single recursive chmod I gave
you will most likely be what you need.

> 
> what would be the best solution here?
> 
> thanks,
> -- fafa
> 
> -- 
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