[ale] Question about awk

[Geoffrey]

Ed Cashin wrote:
> On Thu, Sep 17, 2009 at 7:36 AM, Geoffrey <lists at serioustechnology.com> wrote:
> ...
>> awk -F '[\\[\\]]' '/Recipient address rejected/ {print $10}'
> 
> Bravo!  :)
> 
> For fields that are near the end, it's sometimes more readable or
> convenient to use the "NF" variable for number of fields, like this:
> 
>   bash$ echo one two three four | awk '{print $(NF-1)}'
>   three
> 
> Not sure if that's helpful here, but I like that awk feature.

I love awk.  Once wrote a language parser with it.  Now that was ugly.. ;)


-- 
Until later, Geoffrey

Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety.
  - Benjamin Franklin