Re: Deterministic delays in POSIX shell scripts (Was: Re: notify via virtual terminal available packages)
Hello,
On Fri, Sep 25, 2020 at 07:49:19AM -0400, Greg Wooledge wrote:
> On Fri, Sep 25, 2020 at 07:44:25AM +0000, Andy Smith wrote:
> > "hostid" tends to return a hexadecimal representation of the first
> > IPv4 address (but isn't guaranteed to).
>
> unicorn:~$ hostid
> 007f0101
>
> Doesn't look very useful. That's just 127.0.1.1 in a 16-bit little
> endian format.
Oh, none of mine do that, it seems to pick the other IP address for
me. But if it's a problem there are other sources of "machine" ID as
I mentioned. There's some more here:
http://0pointer.de/blog/projects/ids.html
> You know what else works really well? Just putting a different start
> time in each system's crontab.
If that works for you, great, but I have quite a few machines, VMs
and containers provisioned identically and would rather not have to
change the scripts or configuration on a per-host basis.
Cheers,
Andy
--
https://bitfolk.com/ -- No-nonsense VPS hosting
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