uuidgen

Generate unique identifiers (UUIDs). See also uuid. More information: https://manned.org/uuidgen.

• Create a random UUIDv4:

uuidgen --random

• Create a UUIDv1 based on the current time:

uuidgen --time

• Create a UUIDv5 of the name with a specified namespace prefix:

uuidgen --sha1 --namespace @dns|@url|@oid|@x500 --name object_name