Unix File System

	1111111110000000
bitmap	0000000000000000
	0000000000000000
super-Block
0	0 | 0 | 10 | 5 | 1
	0 | 3 | l | l |l | l |l
1	0 | 0 | 00 | 3 | 1
inodes	1 | l | l |l | l |l |l
2	0 | 0 | 11 | 2 | 1
	2 | l | l |l | l |l |l
3	0 | 0 | 00 | 2 | 1
	4 | l | l | l |l | l |l
4	0 | 0 | 00 | 2 | 1
	5 | l | l |l | l |l |l
5	1 | 1 | 00 | 14 | 3
	6 | l | l |l | l |l |l
6	1 | 1 | 00 | 14 | 1
	7 | l | l |l | l |l |l
7	0 | 0 | 11 | 2 | 1
	8 | l | l |l | l |l |l
8
9
	. | 0
0	.. | 0
	alice | 1
	john | 2
	. | 1
1	.. | 0
blocks	sub1 | 4
	file2 | 6
	. | 2
2	.. | 0
	sub2 | 7
	|

	sam | 3
3	|
	|
	|
	. | 3
4	.. | 0
	|
	|
	. | 4
5	.. | 1
	file1 | 5
	file3 | 5
	This is file 1
6
	This is file 1
7
	. | 7
8	.. | 2
	file4 | 5
	|

Login	0	1	1	2	1
Current	0	1	4	2	1

login: /

$ mkdir alice

$ mkdir john

$ mkdir sam

$ logout

login: alice

$ mkdir sub1

$ cd sub1

$ vi file1 This is file1

$ cp file1 ../file2

$ ln file1 file3

$ ln file1 /john/file4 Note that access is denied here

$ logout

login: john

$ mkdir sub2

$ chmod 11 sub2

$ logout

login: alice

$ ln sub1/file1 /john/sub2/file4