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UUIDGEN !!!UUIDGEN NAME SYNOPSIS DESCRIPTION OPTIONS RETURN VALUE CONFORMING TO AUTHOR AVAILABILITY SEE ALSO ---- !!NAME uuidgen - command-line utility to create a new UUID value !!SYNOPSIS __uuidgen__ [[ __-r__ | __-t__ ] !!DESCRIPTION The __uuidgen__ program creates a new universally unique identifier (UUID) using the libuuid(3) library. The new UUID can reasonably be considered unique among all UUIDs created on the local system, and among UUIDs created on other systems in the past and in the future. There are two types of UUID's which __uuidgen__ can generate: time-based UUID's and random-based UUID's. By default __uuidgen__ will generate a random-based UUID if a high-quality random number generator is present. Otherwise, it will chose a time-based UUID. It is possible to force the generation of one of these two UUID types by using the __-r__ or __-t__ options. !!OPTIONS __-r__ Generate a random-based UUID. This method creates a UUID consisting mostly of random bits. It requires that the operating system have a high quality random number generator, such as ''/dev/random''. __-t__ Generate a time-based UUID. This method creates a UUID based on the system clock plus the system's ethernet hardware address, if present. !!RETURN VALUE The UUID of the form 1b4e28ba-2fa1-11d2-883f-b9a761bde3fb (in printf(3) format __ !!CONFORMING TO OSF DCE 1.1 !!AUTHOR __uuidgen__ was written by Andreas Dilger for libuuid. !!AVAILABILITY __uuidgen__ is part of libuuid from the e2fsprogs package and is available from http://e2fsprogs.sourceforge.net. !!SEE ALSO libuuid(3) ----
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