[KLUG Members] awk question

[bill]

Trying to get the uncompressed size of a file I've come up with

gzip -l somezipfile.gz | awk /[0-9]+/'{print $2)'

Now I want to know how it works.

The output of gzip -l looks like: 

         compressed        uncompressed  ratio uncompressed_name
         1837372631          3201867776  42.6% somefile.txt

And when I initially did 

gzip -l somezipfile.gz | awk '{print $2)'

I got

uncompressed
3201867776

I didn't want the "uncompressed" string, just the number.

Are those two results the result of awk outputting the second "word" of
two lines?  I kept trying to break them up but couldn't, and ended up
telling awk to only keep the "word" that had numbers in it.

kind regards,

bill hollett