[jnazario]

a lot of people pipe to sed but you don't need to. you can do regex subs right in awk. see sub and gsub.

       sub(r, t, s)
              substitutes  t  for the first occurrence of the regular expression r in the string s.  If s is
              not given, $0 is used.

       gsub   same as sub except that all occurrences of the regular expression are replaced; sub  and  gsub
              return the number of replacements.

(this is awk from osx, which i think is nawk)

[favadi]

If you have gawk, use gensub instead.