Re: [PATCH] [RFC] add support for input/output count of lines

[Roberto Nibali]

Hi,

> thank you for your patch, and thank you for sharing the idea with us.
>
> But the same can be achieved by awk, eg.
>
> gawk '
>   /foobar/ {c++; print}
>   END {
>     printf("input_lines=%d\noutput_lines=%d\n", NR,c) >"/dev/stderr"
>   }'

ITYM s#}'#}'</var/log/really_big_file# but yes, you're correct.

> The only gawk-specific feature is the redirection to "/dev/stderr".
> You can use a temporary file, to get portable solution.

We only need portability on Linux and Solaris, which should be safe with your 
proposal.

> But yes, awk uses a bit different syntax of regular expressions then
> either grep or egrep.

This we have to investigate and this was also the main reason why sometimes we 
were a bit hesitant to use grep. Also the command chain looks a bit more 
difficult than the given example. I will check back with the responsible 
developers to see if your solution is viable for our purposes.

> So my first impression is not to include your patch.

I wouldn't probably either if I was the GNU grep maintainer ;).

> But I'd also like to hear opinions from other people on the list.
> (Perhaps off the list, I'll publish a summary.)

Thanks.

> BTW: Even if the feature were accepted, I'd hesitate to grant the
> one-letter options, but that's not relevant at the moment.

I know it's fugly but definitely not relevant.

Best regards,
Roberto Nibali, ratz
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