File: coreutils.info, Node: hostid invocation, Next: uptime invocation, Prev: hostname invocation, Up: System context 21.6 '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 1bac013d 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. 'hostid' is installed only on systems that have the 'gethostid' function, so portable scripts should not rely on its existence. An exit status of zero indicates success, and a nonzero value indicates failure.
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