[ale] chmod

[Sean]

Thanks for all the hints.  Most of this stuff I already knew.

On changing perms, I couldn't make the changes -- even as root.

I think the ultimate point of friction is the MAC OS.  It is somehow locking 
these files with some sort of attribute I do not understand or know how to 
disclose -- but one that the FAT file system on the thumb drive passes on.

I try to avoid recursive mode (with rare and careful exception) because of the 
risk of unintended consequences.  It's sorta like moving from a .22 rifle to a 
10 gauge shotgun. There are consequences! And they can disrupt your day.

Sean

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On Tuesday, December 27, 2016 7:28:04 PM EST Alex Carver wrote:
> He shouldn't need recursive mode if he's inside the same directory as
> the files.
> 
> However, which user owns the file?  If you're not the explicit owner
> then it's not going to change permissions.  Sometimes it doesn't change
> permissions if you're a member of the group, either.
> 
> On 2016-12-27 16:43, Jim Kinney wrote:
> > -r
> > 
> > Recursive
> > 
> > It may be -R
> > 
> > Damn gnu not setting a standard on rR for recursive.
> > 
> > On Dec 27, 2016 7:08 PM, "Sean" <kilpatms at comcast.net
> > 
> > <mailto:kilpatms at comcast.net>> wrote:
> >     I am confused -- which is nothing new.
> >     Running Fedora 24 on this laptop w/kernel 4.8.14, and CentOS  7.2 on
> >     my big
> >     box.
> >     In the past the following command has changed the perms within a
> >     directory of .JPG files so that all of those files have the same
> >     perms:
> >     
> >     chmod 660 *.JPG
> >     
> >     Now it doesn't. On CentOS.  Works just fine on this laptop w/Fedora 24
> >     -- ON SOME DIRECTORIES!!! just not on the directories I need to have
> >     this work on.
> >     
> >     Specifically, I have some pix taken with an i-phone. They were
> >     transferred to a thumb drive and then to this laptop. The perms read:
> >     -rw-r--r-- and I want them to read: -rw-rw-r--   I would like to
> >     change the perms on both the thumb drive AND on the laptop.s hard
> >     drive.
> >     
> >     I've looked through the man page and, as is often the case, been
> >     unable to
> >     glean a clue.
> >     
> >     A clue would be appreciated.
> >     
> >     How do I change the perms from -rw-r--r-- on a set of jpg files within
> >     a
> >     single directory to -rw-rw-r--  ?  And have it stick?
> >     
> >     
> >     
> >     sean
> >     
> >