uuid

Generate and decode Universally Unique Identifiers (UUID). tldr-pages

On Linux

Linux

Generate a UUIDv1 (based on time and system's hardware address, if present)

Generate a UUIDv4 (based on random data)

uuid -v 4Identify

Generate multiple UUIDv4 identifiers at once

uuid -v 4 -n number_of_uuidsIdentify

Generate a UUIDv4 and specify the output format

uuid -v 4 -F BINIdentify

Generate a UUIDv4 and write the output to a file

uuid -v 4 -o path/to/fileIdentify

Generate a UUIDv5 (based on the supplied object name) with a specified namespace prefix

uuid -v 5 ns:DNS object_nameIdentify

Decode a given UUID

uuid -d uuidIdentify