Linux in a Nutshell, 6th Edition

Name

uuidgen

Synopsis

uuidgen [option]

Create a new Universal Unique Identifier (UUID) and print it to standard output. The generated UUID consists of five hyphen-separated groups of hex digits (e.g., 3cdfc61d-87d3-41b5-ba50-32870b33dc67). The default is to generate a random-based UUID, but this requires that a high-quality random-number generator be available on the system.

Options

-r

Generate a random-based UUID.

-t

Generate a time-based UUID.