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

sed is not the proper tool for counting. Use awk instead:

find . -name '*.m' -exec awk '{print NR}' {} +

Using + instead of \; forces find to call awk every N files found (like with xargs).