Existem 24 hardlinks para o meu / no Ubuntu:
$ ls -ld /
drwxr-xr-x 24 root root 4096 May 6 13:39 /
Eu quero saber o que eles são.
É correto que /. e /.. sejam dois links para / ?
$ ls -a /
. bin cdrom etc initrd.img lib lost+found mnt proc run share sys usr vmlinuz
.. boot dev home initrd.img.old lib64 media opt root sbin srv tmp var vmlinuz.old
$ ls /..
bin cdrom etc initrd.img lib lost+found mnt proc run share sys usr vmlinuz
boot dev home initrd.img.old lib64 media opt root sbin srv tmp var vmlinuz.old
Existem 27 arquivos em / e / tem 4 links simbólicos e 23 subdiretórios cada um contendo um link para / :
$ ls / -l |wc -l
27
$ ls -l /
total 108
drwxr-xr-x 2 root root 4096 Apr 16 08:10 bin
drwxr-xr-x 3 root root 4096 May 5 10:46 boot
drwxrwxr-x 2 root root 4096 Mar 8 22:10 cdrom
drwxr-xr-x 17 root root 4640 May 6 19:56 dev
drwxr-xr-x 148 root root 12288 May 6 18:31 etc
drwxr-xr-x 4 root root 4096 Mar 8 22:12 home
lrwxrwxrwx 1 root root 33 May 5 10:44 initrd.img -> boot/initrd.img-3.16.0-37-generic
lrwxrwxrwx 1 root root 33 Apr 30 12:19 initrd.img.old -> boot/initrd.img-3.16.0-36-generic
drwxr-xr-x 24 root root 4096 Mar 9 11:48 lib
drwxr-xr-x 2 root root 4096 Mar 8 22:23 lib64
drwx------ 2 root root 16384 Mar 8 22:07 lost+found
drwxr-xr-x 3 root root 4096 Mar 8 22:53 media
drwxr-xr-x 2 root root 4096 Apr 10 2014 mnt
drwxr-xr-x 9 root root 4096 Apr 15 23:43 opt
dr-xr-xr-x 252 root root 0 May 4 07:30 proc
drwx------ 8 root root 4096 Mar 15 22:46 root
drwxr-xr-x 27 root root 940 May 6 13:11 run
drwxr-xr-x 2 root root 12288 Apr 24 03:21 sbin
drwxr-xr-x 3 root root 4096 Apr 22 19:24 share
drwxr-xr-x 2 root root 4096 Feb 18 14:33 srv
dr-xr-xr-x 13 root root 0 May 6 22:12 sys
drwxrwxrwt 15 root root 12288 May 6 22:17 tmp
drwxr-xr-x 10 root root 4096 Apr 22 19:19 usr
drwxr-xr-x 13 root root 4096 Feb 18 14:41 var
lrwxrwxrwx 1 root root 30 May 5 10:44 vmlinuz -> boot/vmlinuz-3.16.0-37-generic
lrwxrwxrwx 1 root root 30 Apr 30 12:19 vmlinuz.old -> boot/vmlinuz-3.16.0-36-generic
Em seguida, deve haver 23 + 2 = 25 hard links para / . Mas por que existem 24?
Obrigado.
Existem 28 arquivos, incluindo diretórios.
ls / | wc -l inclui a linha "total", mas não os diretórios . e .. , portanto seus 27 se tornam 28.
Subtraia initrd.img , initrd.img.old , vmlinuz e vmlinuz.old , pois eles não são links de diretório (são arquivos regulares ou links simbólicos), fazendo 24.
Tags links