Awk symbol for last column

Shell Programming and Scripting
1

Hi ,

I have a bunch of files with different # of columns but I want to write a single awk script.

What is the awk symbol for last column? say '{print $lastcol}' or something

2 
$NF

(too short ...)

3

That will print all non-empty lines. I think you meant:

{ print $NF }
4

... that happen to have the last column different than an empty string or 0. I mean:

% printf '%s\t%s\n' a "" b 0 c ok| awk -F\\t \$NF
c       ok

Yes, I was responding to this question:

And you're right, I had to be clearer.