1 .\" Copyright 1999 Andreas Dilger (adilger@enel.ucalgary.ca)
3 .\" This man page was created for libuuid.so.1.1 from e2fsprogs-1.14.
5 .\" This file may be copied under the terms of the GNU Public License.
7 .\" Created Wed Mar 10 17:42:12 1999, Andreas Dilger
8 .TH UUIDGEN 1 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
10 uuidgen \- command\-line utility to create a new UUID value
21 program creates a new universally unique identifier (UUID) using the
23 library. The new UUID can reasonably be considered unique among
24 all UUIDs created on the local system,
25 and among UUIDs created on other systems in the past
28 There are two types of UUID's which
30 can generate: time-based UUID's and random-based UUID's. By
33 will generate a random-based UUID if a high-quality random number
34 generator is present. Otherwise, it will chose a time-based UUID. It
35 is possible to force the generation of one of these two
36 UUID types by using the
44 Generate a random-based UUID. This method creates a UUID consisting mostly
45 of random bits. It requires that the operating system have a high
46 quality random number generator, such as
50 Generate a time-based UUID. This method creates a UUID based on the system
51 clock plus the system's ethernet hardware address, if present.
53 The UUID of the form 1b4e28ba-2fa1-11d2-883f-b9a761bde3fb (in
55 format "%08x-%04x-%04x-%04x-%012x") is output to the standard output.
60 was written by Andreas Dilger for libuuid.
63 is part of libuuid from the e2fsprogs package and is available from
64 http://e2fsprogs.sourceforge.net.