(base)adconrad@nosferatu:~$ sudo ls /proc/4398/fd/21 -l
lrwx------ 1 root root 64 Jul 12 09:38 /proc/4398/fd/21 -> /run/samba/locking.tdb
(base)adconrad@nosferatu:~$ sudo cat /proc/4398/fdinfo/21
pos:	168
flags:	02100002
mnt_id:	23
lock:	1: POSIX  ADVISORY  READ  4398 00:13:821 4 4