Re: awk quries


"NewBie" <leongyc@xxxxxxxxx> wrote in message news:42c238d8$1@xxxxxxx
> Example there is a file called data.txt consists of:
>
> /usr/local/record
> /usr/local/record
> /usr/local/record
> /usr/local/record
>
>
> Now I just want to have an output with only a single line of:
>
> /usr/local/record
>
> How to go about it with awk?
>
> If I will to print only 2nd line, is it possible also?
>

Please don't top-post. It makes it harder for people to help you.

To simulate the Unix tool, uniq, and print only the first of
successive duplicate lines:

$0 !~ lastline { print }
{ lastline = $0 }

To print only the second line (or record):

NR == 2 { print }

--
John.



.

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