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UUIDGEN(1)		FreeBSD	General	Commands Manual		    UUIDGEN(1)

NAME
     uuidgen --	generate universally unique identifiers

SYNOPSIS
     uuidgen [-1] [-n count] [-o filename]

DESCRIPTION
     The uuidgen utility by default generates a	single DCE version 1 univer-
     sally unique identifier (UUID), also known	as a globally unique identi-
     fier (GUID).  The UUID is written to stdout by default.  The following
     options can be used to change the behaviour 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	     This option controls the number of	identifiers generated.	By
	     default, multiple identifiers are generated in batch.  The	upper
	     hard limit	is 2048	(see uuidgen(2)).

     -o	     Redirect output to	filename instead of stdout.

     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.

EXIT STATUS
     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 FreeBSD 5.0.

FreeBSD	9.2			 May 23, 2012			   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | EXIT STATUS | SEE ALSO | HISTORY

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