[ale] chmod

[Sean]

BINGO!

The clue I needed.

Sean

PS.  For those interested in creative uses of programming, I suggest a visit 
to Oak Grove sometime over the next 4 nights.  Oak Grove is an intersection on 
Lavista Road a half mile east of Clairmont Rd.  Park behind the Walreens and 
walk south on Oak Grove Rd. to see the Christmas light show. The entire light 
show (this is a major league display) is coordinated with the music and runs 
for maybe 15 minutes of so. I am told the home owner also owns a radio station 
-- which probably hints at the expertise needed to put something like this 
together.  (Needless to say, his neighbors are somewhat less than thrilled at 
the annual display.)  I don't know which takes more time: programming the 
thousands of lights or wiring everything up.

msk

-----------------------------------------------------------------------------------------------------------

On Wednesday, December 28, 2016 7:27:53 AM EST Alex Carver wrote:
> Ok, a Mac.  Then it's an underlying ACL.
> 
> Check the ACL using ls -le <file>
> 
> After that, sudo chmod -N <file> to strip the ACL off the file.
> 
> The ACLs are stored separately from the file so FAT, HFS and other file
> systems are able to be controlled by an ACL.
> 
> On 2016-12-28 07:22, Sean wrote:
> > 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
> > 
> > --------------------------------------------------------------------------
> > ---------------> 
> > 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
> > 
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