Hi,
head(1) holds the whole text when using -n -1 (or any other negative
number). However, ideally, it only needs to hold the last NUM lines (in
case they are the last ones).
Experiment:
$ head -n -1
1
2
3
4
5 # Here I do ^D
1
2
3
4
$
See? It holds everything. It could instead just do:
$ head -n -1
1
2
1
3
2
4
3
5
4 # And if I ^D here, it would just discard the line containing 5.
$
Thanks,
Alex
--
Alejandro Colomar
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
http://www.alejandro-colomar.es/
