02-08-2016
Hi Alf,
You're going to have to give us a bit more to work with I think.
You say that you have received a file from a Windows machine a ".dat" file, you also say the Windows machine may have received the file by RS232.
You don't say what the source of the file is;
- Was it generated by an application? If so what was it?
- What have you done in respect of "decoding" the file?
- What do you need to understand on a Linux machine?
There are many ways of looking at this problem, as to decoding the file - there are lots of tools available if you want to just have a look at the file. Fewer if you want to manipulate the contents of the file, you'll have to give a bit more information.
Regards
Gull04
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LEARN ABOUT DEBIAN
systemd-machine-id-setup
SYSTEMD-MACHINE-ID(1) systemd-machine-id-setup SYSTEMD-MACHINE-ID(1)
NAME
systemd-machine-id-setup - Initialize the machine ID in /etc/machine-id
SYNOPSIS
systemd-machine-id-setup
DESCRIPTION
systemd-machine-id-setup may be used by system installer tools to initialize the machine ID stored in /etc/machine-id at install time with
a randomly generated ID. See machine-id(5) for more information about this file.
This tool will execute no operation if /etc/machine-id is already initialized.
If a valid D-Bus machine ID is already configured for the system the D-Bus machine ID is copied and used to initialize the machine ID in
/etc/machine-id.
If run inside a KVM virtual machine and a UUID is passed via the -uuid option this UUID is used to initialize the machine ID instead of a
randomly generated one. The caller must ensure that the UUID passed is sufficiently unique and is different for every booted instanced of
the VM.
Similar, if run inside a Linux container environment and a UUID is set for the container this is used to initialize the machine ID. For
details see the documentation of the Container Interface[1].
OPTIONS
This tool does not take any options or arguments.
EXIT STATUS
On success 0 is returned, a non-zero failure code otherwise.
SEE ALSO
systemd(1), machine-id(5), dbus-uuidgen(1)
AUTHOR
Lennart Poettering <lennart@poettering.net>
Developer
NOTES
1. Container Interface
http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface
systemd 10/07/2013 SYSTEMD-MACHINE-ID(1)