Creating ttyp2 with mknod problem

[Jason Ray]

I am trying to recreate the character file /dev/ttyp2. The other files look like this:

crw-rw-rw- 2 bin tty 17 0x000000 Dec 21 13:56 ttyp0
crw-rw-rw- 2 root root 17 0x000001 Mar 27 11:05 ttyp1

I create this one:

crw-rw-rw- 1 root sys 17 0x000002 Mar 28 09:26 ttyp2

I used this command:
mknod ttyp2 c 17 0x000002

My question, what does the "1" in the second column refer to for device files and why do the other device files have a "2" there.
And mostly, how can I create /dev/ttyp2 so that its like the rest?

Thanks in advance.

[Baiju Kumar.B_1]

dear jason,
it is the present links of the files only .the previous having one more link file also.the latter one has no more link file.you can use ln -s sourcefile destination file
regards
Baiju

[James R. Ferguson · Accepted solution]

Hi Jason:

The "1" in the second field of an 'ls' is the number of links to a file. The manpages for 'ls' provide you that.

To see the inode number of a file, do:

# ls -il filename

Once you have an inode number, you can find the hard-linked files with:

# find -xdev -inum nnn

NOTE that an inode number is only unique within a mountpoint, so its very important to use '-xdev' with 'find' so not to cross mountpoints.

Regards!

...JRF...

[Jason Ray]

Thanks James. That was what I needed to find. Just need to do a hard link of /dev/pty/ttyp2 to the new device file /dev/ttyp2 that I created.