A request for cp flag
smithi at nimnet.asn.au
Tue Oct 18 16:22:36 UTC 2016
In freebsd-questions Digest, Vol 646, Issue 2, Message: 12
On Mon, 17 Oct 2016 19:38:41 +0100 Steve O'Hara-Smith <steve at sohara.org> wrote:
> On Mon, 17 Oct 2016 15:59:10 +0100
> Matthew Seaman <matthew at FreeBSD.org> wrote:
> > You're not going to get anyone to change the behaviour of a core command
> > like cp(1) I'm afraid. For all that you dislike the behaviour when
> > copying a directory path that ends in '/' there will be many, many more
> > people that have written scripts that depend on that exact behaviour and
> > will be exceedingly peeved if those scripts stop working.
> Adding a -r flag wouldn't break anything at least until POSIX adds
> one that does something else and then there'd be a decision to make, for
> that reason I doubt anyone would entertain a new single letter option to cp.
Not to pick on you in particular, Steve, but it seems nobody's noticed
that FreeBSD cp(1) already supports an -r flag, albeit with deprecation.
Historic versions of the cp utility had a -r option. This implementation
supports that option, however, its behavior is different from historical
FreeBSD behavior. Use of this option is strongly discouraged as the
behavior is implementation-dependent. In FreeBSD, -r is a synonym for
-RL and works the same unless modified by other flags. Historical
implementations of -r differ as they copy special files as normal files
while recreating a hierarchy.
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