Re: tac (was Re: GNU shellery)

["Jeremy C. Reed" <reed%reedmedia.net@localhost>]

I forgot to mention that I normally use "tail -r" which is in v7:

 *      Type 'r' means in lines in reverse order from end
 *       (for -r, default is entire buffer )

tail is not in v6. The 32V version and its fork 3BSD had tail but did 
not have the -r feature.

4.0BSD did have it (Nov 10 1980):

Specifying
.B r
causes tail to print lines from the end of the file in reverse order.
The default for
.B r
is to print the entire file this way.