Por esta página sobre arquivos invisíveis no Mac OS X :
This pseudo-directory is used to access files by their ID number (aka inode number) rather than by name. For example, /.vol/234881034/105486 is file #105486 on volume #234881034.
Você pode encontrar o ID do volume e o inode usando stat
. Um exemplo, usando /etc/hosts
:
$ head -3 /etc/hosts
##
# Host Database
#
$ stat /etc/hosts
234881026 23347035 -rw-r--r-- 1 root wheel 0 1035 "Jul 15 10:11:35 2010" "May 30 20:55:10 2010" "May 30 20:55:11 2010" "May 30 20:47:32 2010" 4096 8 0 /etc/hosts
$ head -3 /.vol/234881026/23347035
##
# Host Database
#