Unix Grep command

Question

I have to search from codebase of lines having following pattern:

"get_token , get_token"

For example the below line 'type' should be listed:

fn1(string.get_token(), string1.get_token());

Thanks in advance

Answer 1

grep "get_token.*,.*get_token" *

Answer 2

grep -R ".*get_token(),.*get_token()" *

Answer 3

grep -E -n 'get_token.*?get_token' *

Answer 4

egrep '(get_token).*\1'

Modify as needed.

Answer 5

| grep "get_token.*,.*get_token"