Script Test [OT]

Cameron Simpson cs at
Tue Sep 9 07:38:11 UTC 2008

On 08Sep2008 21:04, Kevin J. Cummings <cummings at> wrote:
> Alan Evans wrote:
>> On Mon, Sep 8, 2008 at 6:40 AM, Steven Tardy <sjt5 at> wrote:
>>> kwhiskerz wrote:
>>> man hostid
>> On my Fedora 9...
>> $ hostid
>> 00000000
>> Now I haven't bothered to check any other machines, but my initial
>> impression is that this is not going to work...
> I just checked the hostids on my 2 primary machines on the same local  
> network.  They just seem to be encodings of the machine's IP addresses.  
> And since both are PC class machines, the addresses look to be syllable 
> swapped (but not byte swapped).
> and
> a8c05e06     and a8c06a06
> So, I have to ask, does the machine you tried it on have an IP address?

So, let us turn to the docs: man hostid says:

  hostid - print the numeric identifier for the current host
  The full documentation for hostid is maintained as  a  Texinfo  manual

Gah. I hate this info-so-no-f'n-man-page rubbish!
But let's go: info hostid:
  21.4 `hostid': Print numeric host identifier.
  `hostid' prints the numeric identifier of the current host in
  hexadecimal.  This command accepts no arguments.  The only options are
  `--help' and `--version'.  *Note Common options::.
     For example, here's what it prints on one system I use:
       $ hostid
   On that system, the 32-bit quantity happens to be closely related to the
   system's Internet address, but that isn't always the case.

Gah! Again!

I don't think I'd rely on hostid for anything:-(

Cameron Simpson <cs at> DoD#743

A good newspaper is never good enough, but a lousy newspaper is a joy
forever.        - Garrison Keillor

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