$ perl lstat.pl
/: on device 1795
/bin: on device 1795 (symlink to usr/bin)
/sbin: on device 1795 (symlink to usr/sbin)
/lib: on device 1795 (symlink to usr/lib)
/usr: on device 1795
/usr/bin: on device 1795
/usr/sbin: on device 1795
/usr/lib: on device 1795
/proc: on device 99
/sys: on device 100
/run: on device 105
/tmp: on device 1795
/var/run: on device 1795 (symlink to /run)
/var/tmp: on device 1795
$