/usr/man/cat.1/openssl-rand.1

RAND(1)                      OpenSSL                      RAND(1)

NAME

     openssl-rand, rand - generate pseudo-random bytes

SYNOPSIS

     openssl rand [-out file] [-rand file(s)] [-base64] [-hex]
     num

DESCRIPTION

     The rand command outputs num pseudo-random bytes after
     seeding the random number generator once.  As in other
     openssl command line tools, PRNG seeding uses the file
     $HOME/.rnd or .rnd in addition to the files given in the
     -rand option.  A new $HOME/.rnd or .rnd file will be written
     back if enough seeding was obtained from these sources.

OPTIONS

     -out file
         Write to file instead of standard output.

     -rand file(s)
         Use specified file or files or EGD socket (see
         RAND_egd(3)) for seeding the random number generator.
         Multiple files can be specified separated by a OS-
         dependent character.  The separator is ; for MS-Windows,
         , for OpenVMS, and : for all others.

     -base64
         Perform base64 encoding on the output.

     -hex
         Show the output as a hex string.

SEE ALSO

     RAND_bytes(3)

1.0.2t               Last change: 2019-09-10                    1

See also rand(1)