chmod / files and directories

[Erik Osterholm]

On Wed, Sep 12, 2007 at 11:34:31PM +0200, Mel wrote:
> On Tuesday 11 September 2007 13:15:55 Zbigniew Komarnicki wrote:
> > On Monday 10 of September 2007 17:56:12 Zbigniew Szalbot wrote:
> > > Hello,
> > >
> > > I did read man chmod but I am not really wiser. Is there an option to
> > > recursively set 755 permissions for directories and 644 for files?
> > > When I just issue
> > > chmod -R 755 /usr/local/www/data/wp/
> > > then all files and directories under wp/ are given permissions 755
> > > which is not what I want.
> >
> > Maybe also in such way:
> > # find /usr/local/www/data/wp -type f -exec chmod 644 {} \;
> > # chmod -R a+X /usr/local/www/data/wp
> 
> That's the equivalent of chmod -R 755, since it sets exec bit on everything.
> Assuming all directories are already executable and files are not, the 
> shortcut would be:
> chmod -R o+w,go-w,a+r /usr/local/www/data/wp
> 
> -- 
> Mel

Mel,

According to the man page, using a+X (note the capitalization) should
only set the executable bit on directories, or on files which have any
executable bit set.  A quick test confirms this behavior.  I think
that the combination of the two commands that Zbigniew Komarnicki
listed will result in the desired permissions for the subtree.

Erik