I recently learned that you can't hard link to directories, however, when I ran: ls -l / I got this:
total 24
lrwxrwxrwx 1 root root 7 Dec 6 2021 bin -> usr/bin
drwxr-xr-x 4 root root 4096 Dec 31 1969 boot <-!!!!!!
drwxr-xr-x 21 root root 4380 Sep 20 06:43 dev <-!!!!!!
drwxr-xr-x 1 root root 3520 Sep 20 06:43 etc
drwxr-xr-x 1 root root 40 Sep 18 10:58 home
lrwxrwxrwx 1 root root 7 Dec 6 2021 lib -> usr/lib
lrwxrwxrwx 1 root root 7 Dec 6 2021 lib64 -> usr/lib
drwxr-xr-x 1 root root 6 Sep 5 21:56 mnt
drwxr-xr-x 1 root root 6 Aug 27 09:56 nix
drwxr-xr-x 1 root root 92 Sep 10 09:12 opt
dr-xr-xr-x 377 root root 0 Sep 20 06:43 proc <-!!!!!!
drwxr-x--- 1 root root 92 Sep 18 17:54 root
drwxr-xr-x 28 root root 640 Sep 20 06:43 run <-!!!!!!
lrwxrwxrwx 1 root root 7 Dec 6 2021 sbin -> usr/bin
drwxr-xr-x 1 root root 14 Aug 27 07:30 srv
drwxr-xr-x 1 root root 10 Aug 29 14:46 steam
dr-xr-xr-x 13 root root 0 Sep 20 06:43 sys <-!!!!!!
drwxrwxrwt 10 root root 260 Sep 20 07:03 tmp <-!!!!!!
drwxr-xr-x 1 root root 86 Sep 19 20:59 usr
drwxr-xr-x 1 root root 116 Sep 20 06:43 var
All the pseudo file systems and temporary file systems in addition to /boot have hard links to them. Why is this?
