I need to search in Notepad++ for lines not ending with ','

Question

for example:

text.log file:
123,
4312421
53423543,
5643645,

Will only return/replace the 4312421 with 4312421,

I need to fix many files that are old and not ending with ','

at the end of some lines.

Answer 1

Replace using a lookbehind in regex mode:

Find:

(?<!,)$

Replace:

, [just a single comma]