Hi Jim and Pádraig, Jim Meyering <j...@meyering.net> writes:
>> tail -r comes from the BSDs. >> Also the BSDs don't have tac(1) which overlaps in functionality quite a bit. >> I'm a bit surprised -r was added by POSIX, but fair enough. > > "Surprised" is putting it lightly. I am disappointed and am tempted to > push back and to delay encumbering GNU tail with -r. > That is an option no GNU system needs, since they've all had tac since > before 1992-era textutils. > > I've Cc'd Eric Blake, in case someone wants to propose adding tac to > POSIX in spite of the fact that the BSDs still lack it. Thanks for reminding me about 'tac'. For some reason I forgot about it. That solves my question about how to implement 'tail -r' while avoiding arbitrary limits. But I agree that duplicating parts of 'tac' into 'tail' does not seem ideal. Collin
