how to get the inode number of a particular file ?

ls -il /etc/hosts
8906880 -rw-r--r-- 1 root root 265 2009-03-23 13:46 /etc/hosts



user@ubuntu:~$ sudo debugfs /dev/sda1
debugfs 1.40.8 (13-Mar-2008)
debugfs: stat <8906880>


Inode: 8906880 Type: regular Mode: 0644 Flags: 0x0 Generation: 781546731
User: 0 Group: 0 Size: 265
File ACL: 0 Directory ACL: 0
Links: 1 Blockcount: 8
Fragment: Address: 0 Number: 0 Size: 0
ctime: 0x49c74578 -- Mon Mar 23 13:46:56 2009
atime: 0x4a28c163 -- Fri Jun 5 12:25:31 2009
mtime: 0x49c74578 -- Mon Mar 23 13:46:56 2009
BLOCKS:
(0):35631176
TOTAL: 1