15 Jul
2021
15 Jul
'21
6:19 a.m.
Douglas McIlroy <douglas.mcilroy(a)dartmouth.edu> wrote:
-r is weird because it enables backwards reading, but
only as
limited by count. Better would be a program, say revfile, that simply
reads backwards by lines. Then tail p has an elegant implementation:
revfile p | head | revfile
The GNU coreutils provides "tac" (c-a-t backwards) which does that
job. It was adopted from a long-ago posting of same on comp.sources.something.
It should be standard on just about any Linux system.
(It too has too many options, but let's not go there.)
Thanks,
Arnold