reversing lines in a file

[Anw%maths.nottingham.ac.uk at UCL-CS.ARPA]

		anw at UK.AC.Nott.Maths
	-- Andy Walker, Maths Dept, Nottingham Univ

		grep -n "" file.dat | sort -rn | sed "s/[0-9]*://"

	Possibly more in the spirit of Unix is

> reverses the lines of  file.dat. [...]
>
>	% revgrep '^' file.dat
>
>	[...] It does a grep, backwards, so
>	One way to reverse lines in a file is to use revgrep(1).