I have a list of over 200,000 lines. It is mixed with the majority of lines starting with 12 digit number, and the remainder starting with any character. I want to keep all the lines that have a 12 digit number at the beginning, and those that do not, I want to backspace to remove the CRLF, and add a space.
Example:
200000000000,##x,Free textCRLR
- I have the following, xxx, yyy,zzz
What I want is a complete list, where the any line not starting with 200000000000 the previous CRLR is removed, and a space is added to the front of the line.
I attempted to find the beginning of the lines without numbers using ^. which returned 3643 lines that started with -. I used \l which only removed the leading -.