On Sun, 2023-07-09 at 07:02 -0700, Samuel Sieb wrote:
> On 7/9/23 03:04, Patrick O'Callaghan wrote:
> > On Sat, 2023-07-08 at 20:13 -0700, Samuel Sieb wrote:
> > > On 7/8/23 13:47, Barry wrote:
> > > > I recall that for a file is equal test cmp is the command to
> > > > use
> > > > not diff.
> > > 
> > > That was mentioned in an earlier message.  cmp doesn't have a
> > > recursive
> > > option and diff works just fine for binary files.
> > 
> > Since diff works in terms of lines, what if there are no newline
> > bytes
> > in the files? Could diff have an internal buffer overflow?
> 
> That's only for text files and I'm very sure that it has proper
> buffer 
> handling.  For binary files, it's just a simple yes/no answer with a 
> message if they're different.
> 
> $ diff x y
> Binary files x and y differ
> $ diff x x
> $

I was going to say that this isn't documented, but in fact it is (in
'info diff'), just not in the man page.

poc
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