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.\" Copyright 1999 Andreas Dilger (adilger@enel.ucalgary.ca)
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.\" This man page was created for libuuid.so.1.1 from e2fsprogs-1.14.
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.\" This file may be copied under the terms of the GNU Public License.
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.\" Created Wed Mar 10 17:42:12 1999, Andreas Dilger
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.TH UUIDGEN 1 "May 2009" "Linux"
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uuidgen \- command\-line utility to create a new UUID value
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program creates (and prints)
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a new universally unique identifier (UUID) using the
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library. The new UUID can reasonably be considered unique among
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all UUIDs created on the local system,
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and among UUIDs created on other systems in the past
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There are two types of UUID's which
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can generate: time-based UUID's and random-based UUID's. By
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will generate a random-based UUID if a high-quality random number
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generator is present. Otherwise, it will chose a time-based UUID. It
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is possible to force the generation of one of these two
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UUID types by using the
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Generate a random-based UUID. This method creates a UUID consisting mostly
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of random bits. It requires that the operating system have a high
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quality random number generator, such as
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Generate a time-based UUID. This method creates a UUID based on the system
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clock plus the system's ethernet hardware address, if present.
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was written by Andreas Dilger for libuuid.
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The uuidgen command is part of the util-linux-ng package and is available from
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ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.