Use find, wc, and sed to count lines

Question

I was trying to use sed to count all the lines based on a particular extension.

find -name \'*.m\' -exec wc -l {} \\; | sed ...

I was tryi

Answer 1

you could use sed also for counting lines in place of wc:

 find . -name '*.m' -exec sed -n '$=' {} \;

where '$=' is a "special variable" that keep the count of lines

EDIT

you could also try something like sloccount