how to return a string with findstr in windows with matching substring
I have a string in a file like,
async.AsyncTranslationThread - processPart: Finished Processing job number: J215577 partID: 151269
any many more.
I want to return only that line which has substring Finished Processing job number
I wrote a findstr command with regex like
findstr /R "^.*Finished\sProcessing\sjob\snumber.*$" filename
I am getting nothing in return, what would be the change in regex to get the string with substring in it?