re = /(?ms)([0-9]+\s[A-Z][a-z].+(?=,))/m
str = '001 ALLAN Witham Ross 13 Every_Street, Welltown Greenkeeper 002 ALLARDYCE Margaret Isabel 49 Bell_Road, Musicville Housewife 003 ALLARDYCE Mervyn George 49 Bell_Road, Musicville Company Mngr '
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html