/usr/src/linux-headers-4.15.0-13-generic/ is in linux-headers-4.15.0-13-generic 4.15.0-13.14~16.04.1.
This file is owned by root:root, with mode 0o755.
There are a lot of files here (11128 total).
We're only showing the immediate contents of /usr/src/linux-headers-4.15.0-13-generic
.