xenial (1) uuidgen.1.gz

NAME

       uuidgen - create a new UUID value

SYNOPSIS

       uuidgen [options]

DESCRIPTION

       The  uuidgen program creates (and prints) 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 UUIDs which uuidgen can generate: time-based UUIDs and random-based UUIDs.  By
       default uuidgen will generate a random-based UUID if a high-quality random number generator  is  present.
       Otherwise,  it will choose 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, --random
              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, --time
              Generate a time-based UUID.  This method creates a  UUID  based  on  the  system  clock  plus  the
              system's ethernet hardware address, if present.

       -h, --help
              Display help text and exit.

       -V, --version
              Display version information and exit.

CONFORMING TO

       OSF DCE 1.1

AUTHOR

       uuidgen was written by Andreas Dilger for libuuid.

SEE ALSO

       libuuid(3)

AVAILABILITY

       The    uuidgen    command    is    part    of    the   util-linux   package   and   is   available   from
       ftp://ftp.kernel.org/pub/linux/utils/util-linux/.