Junio C Hamano <gits...@pobox.com> writes:
> Nguyễn Thái Ngọc Duy <pclo...@gmail.com> writes:
>
> > +category_list () {
> > + command_list "$1" | awk '{print $2;}' | sort | uniq
> > +}
>
> Piping output of awk to sort/uniq, instead of processing all inside
> awk within the END block of the script, means that we are wasting
> two processes---I do not think we care too much about it, but some
> people might.
>
Can be written as:
command_list "$1" | awk '!seen[$2]++ {print $2}'
This doesn't actually sort it, though, which I'm not sure whether is a
good thing or a bad thing in this case. But it is less work, and being fast is
nice for completion scripts.
Øsse
