Re: [PATCH v2 3/6] generate-cmdlist.sh: keep all information in common-cmds.h

> Junio C Hamano <gitster@pobox.com> writes:
> 
> > Nguyễn Thái Ngọc Duy  <pclouds@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.