Uuidgen

uuidgen generates a new GUID (globally unique ID), either based on time or by default on a local random number generator.

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Options

• -r --random (default) This generates a mostly-random UUID; requires a high quality random number generator such as /dev/random.
• -t --time Generate a UUID based on time and ethernet address.
• -h --help display help text and exit.
• -V --version display version information and exit.

Provided by

Most (all?) Linux distributions incorporate this from the [util-linux] project

See also

• ls
• stat
• util-linux