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uuidgen(1) [osx man page]

UUIDGEN(1)						    BSD General Commands Manual 						UUIDGEN(1)

uuidgen -- generates new UUID strings SYNOPSIS
uuidgen [-hdr] DESCRIPTION
The uuidgen command generates a Universally Unique IDentifier (UUID), a 128-bit value guaranteed to be unique over both space and time. The following options are available: -hdr Emit CoreFoundation CFUUID-based source code for using the uuid in a header. RETURN VALUE
The UUID is printed to standard output as a hyphen-punctuated ASCII string of the form: EEF45689-BBE5-4FB6-9E80-41B78F6578E2 (in printf(3) format "%08X-%04X-%04X-%04X-%012X"), unless the -hdr option is given, in which case a fragment of source code is output. Mac OS X July 1, 2005 Mac OS X

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UUIDGEN(1)						    BSD General Commands Manual 						UUIDGEN(1)

uuidgen -- generate universally unique identifiers SYNOPSIS
uuidgen [-1s] [-n count] [-o filename] DESCRIPTION
The uuidgen utility by default generates a single universally unique identifier (UUID), also known as a globally unique identifier (GUID). By default, uuidgen generates a single UUID and outputs it in the standard string representation to stdout. The following options can be used to change the behavior of uuidgen: -1 This option only has effect if multiple identifiers are to be generated and instructs uuidgen to not generate them in batch, but one at a time. -n count This option controls the number of identifiers generated. By default, multiple identifiers are generated in batch. -o filename Redirect output to filename instead of stdout. -s Output UUIDs as initialized C structures, rather than in the standard string format. Batched generation yields a dense set of identifiers in such a way that there is no identifier that is larger than the smallest identifier in the set and smaller than the largest identifier in the set and that is not already in the set. When generating the identifiers one at a time, the identifiers will be close to each other, but operating system latency and processing time will be reflected in the distance between two successive identifiers. DIAGNOSTICS
The uuidgen utility exits 0 on success, and >0 if an error occurs. SEE ALSO
uuidgen(2), uuid(3) HISTORY
The uuidgen command first appeared in NetBSD 3.0. BSD
September 13, 2004 BSD
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