RegExp: How to find lines that don't end with some pattern?

Question

I have a log-file. Most of the lines in it ends with some sub-string (for example it 0.02). I can filter that lines with pattern 0\.02$. But how I can filter rest lines, other than ending with 0.02?

Answer 1

You need a negative lookbehind assertion:

(?<!\b0\.02)$