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UUIDGEN(1) |
User Commands |
UUIDGEN(1) |
NAME
uuidgen — command-line utility to generate UUID's
SYNOPSIS
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uuidgen [-r | -t] [-o filename] |
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DESCRIPTION
The uuidgen command generates and prints a Universally Unique IDentifier (UUID). By default uuidgen creates a new UUID based on high-quality randomness from arc4random(3C) (DCE version 4). If the -t option is provided then a time-based (DCE version 1) UUID will be generated.
OPTIONS
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-r
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Generate a UUID using uuid_generate_random() instead of uuid_generate(). This derives the new UUID from random data.
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-t
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Generate a UUID using uuid_generate_time() instead of uuid_generate(). This uses the current time and either the Ethernet address (if available) or system node ID.
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-o
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Redirect output to filename instead of stdout.
EXIT STATUS
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0
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Successful completion.
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>0
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Failure.
INTERFACE STABILITY
Uncommitted.