Re: Easy for Some

[Kevin Rodgers <kevin.d.rodgers@gmail.com>]

Peter Dyballa wrote:
> 
> Am 04.01.2010 um 11:25 schrieb marioepsley:
> 
>> I am a complete newbie, i downloaded aquamacs emacs yesterday, tried 
>> to use
>> replace string as a guess
> 
> 
> You could use awk to print only the second column, i.e., the second by 
> white space separated word of each line, when it exists in this record. 
> Then it would also output the second word of the header lines which 
> you'd need to filter:
> 
>     awk '{if (NF > 1) print $2}' <file name> | egrep -v '[^-0-9.]'

You (almost) never need to pipe awk's output through (e)grep:

awk 'NF == 2 && $2 ~ /^[0-9]+\.[0-9]+$/ {print $2}' FILE

-- 
Kevin Rodgers
Denver, Colorado, USA