❯ uuidgen --help
Usage:
uuidgen [options]
Create a new UUID value.
Options:
-r, --random generate random-based uuid
-t, --time generate time-based uuid
-n, --namespace <ns> generate hash-based uuid in this namespace
available namespaces: @dns @url @oid @x500
-N, --name <name> generate hash-based uuid from this name
-m, --md5 generate md5 hash
-C, --count <num> generate more uuids in loop
-s, --sha1 generate sha1 hash
-x, --hex interpret name as hex string
-h, --help display this help
-V, --version display version
For more details see uuidgen(1).