On Tue, 27 Dec 2016 16:07:01 +0100 Laslo Hunhold <d...@frign.de> wrote:
> On Tue, 27 Dec 2016 16:05:19 +0100 > Mattias Andrée <maand...@kth.se> wrote: > > Hey Mattias, > > > I actually use tac(1) a lot, but I can't think of > > anything I have used it for right now. However, it can > > be used for reversing the output after sort(1), however > > POSIX specifies -r for sort(1p) which does this, but > > chances are your common user is not aware of this. > > but sort(1) requires sorted input, whereas tac(1) can > operate on any input. You sort(1) sorts the input. And yes, tac(1) is more flexible, but that was the only use case I could think of off the top of my head. But now I remember that I have used it a number of times to reverse the output of find(1) to get directories listed after the files without the directories. > > > I can't see the rationale for adding this behaviour to > > tail(1). If it is added to tail, the flag would do two > > things instead of one thing: reversing the output, and > > output the entire file. It would make more sense to add > > it to cat(1), perhaps you men to write “cat”. I would > > think that this is a good idea, but since tac(1) > > already exists and -r for cat(1) doesn't, I think it is > > better to go with tac(1), but I'm flexible. > > What do the others think? > > Cheers > > Laslo >
pgpa7gSNsKEh0.pgp
Description: OpenPGP digital signature
