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`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.

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