[ale] [OT] Regular Expression Help

[ecashin at noserose.net (Ed Cashin)]

What's the software you're using?  To get the output I think you want
you don't need a regular expression in awk, since the number of fields
is four when there's a letter and three when it's missing.

   awk '{if (NF!=4) print "= N"; else print "= " $3}' < /tmp/data | nl
| sed 's! *!line !'

-- 
  Ed Cashin <ecashin at noserose.net>