Extract email addresses from text file using regex with bash or command line

Question

How can I grep out only the email address using a regex from a file with multiple lines similar to this. (a sql dump to be precise)

Unfortunately I cannot just go b

Answer 1

If you know the field position then it is much easier with awk or cut:

awk -F ',' '{print $7}' file

OR

cut -d ',' -f7 file