[natpalmer1776]

I wonder how much disk space a file system link would take.

[cvs268]

Typically the filesystem "page" or "inode" size. Usually 4KB.

[Dylan16807]

Page/block size is not inode size. While filesystems very often work in chunks of 4KB, the normal inode size is 256 bytes on ext filesystems and 1KB on NTFS. They get packed together.