Re: "conformance" vs. compatibility

[Jim Meyering]

ari <address@hidden> wrote:
> The thread you mention does follow a similar discussion, but i don't
> believe it obviates my argument.

> I notice that the 'head' and 'tail' commands, in the latest version of
> coreutils, were modified to do away with the following options:
>
>       -<number>  (head, tail)
>       +<number>  (tail)

You must know by now that they haven't been `done away with'.
On systems claiming a certain degree of compliance to POSIX,
they are not recognized by default.  However, as already discussed,
there are ways to enable the old behavior even on those systems.