The $ sudo find / -xdev -samefile / /
Gives me only one however there are seems to be 24 hard links to the / (probably counting the «..» of subdirs as you mentioned): $ ls -lid / 2 drwxr-xr-x 24 root root 4096 Jul 28 07:34 / I’m using Ubuntu 18.04.5. >Saturday, August 15, 2020 7:37 PM +03:00 from Tavian Barnes ><taviana...@tavianator.com>: > >On Sat, 15 Aug 2020 at 11:56, Andrei Enshin via Bug reports for the >GNU find utilities < bug-findutils@gnu.org > wrote: >> >> >> Hello, >> >> I’m trying to identify all hard links pointing to my root directory: >> $ sudo ls -lid / >> 2 drwxr-xr-x 23 root root 4096 Aug 11 20:58 / >> >> The inode number is 2 and count of hard links is 23. >> >> Then I run find: >> >> $ sudo find / -xdev -inum 2 2>/dev/null | wc -l >> 15 > >You can also use > >$ find / -xdev -samefile / > >> But the `find` finds only 15. > >I am surprised you found any, since most systems don't support >directory hard links. Are you on macOS? > >> I checked on two different systems and result of find doesn’t match the >> number of hardlinks. > >Note that directory link counts usually equal 2 + the number of >subdirectories, essentially treating each child's '..' dirent as if it >were a link to the parent. See e.g. >https://unix.stackexchange.com/a/101536/56202 for more info. > >> In detailed out — https://pastebin.com/raw/JH6hW7n6 — you can see that >> -xdev option seems to be ignored since /dev is counted. > >-xdev will process mount points but nothing below them. A future >POSIX version will specify that -mount should skip mount points >entirely: http://austingroupbugs.net/view.php?id=1133 . > >> But it is still doesn’t explain why the number is 15 — less than 23. >> >> May I ask for help to find all hard links to the directory within one >> filesystems using `find`? >> >> >> --- >> Best Regards, >> Andrei Enshin > >-- >Tavian Barnes --- Best Regards, Andrei Enshin
