The following grep

grep -r -e -n coll *

will display

fullpath/filename:  <tag-name>coll</tag-name>

I would like to know what line has the following text, I tried adding -n, but it did not work. I tried adding | grep -n *, but it did something weird.

What I would like to see (I don't care about format) is

fullpath/filename:10:  <tag-name>coll</tag-name>