rand

Print random bytes from a secure source to stdout.

Usage

Usage: rand [<length-bytes>] [flags]

Print random bytes from a secure source to stdout.

Arguments:
  [<length-bytes>]    Length of random bytes to generate.

Flags:
  -h, --help            Show context-sensitive help.
  -s, --seed=STRING     Use an insecure random source with seed integer.
  -a, --base64          Print random bytes encoded as base64.
  -b, --binary          Print random bytes directly without formatting.
  -p, --password        Print a suitable password.
  -o, --omit=STRING     Omit the listed characters from generated passwords.
  -n, --omit-newline    Do not print the trailing newline character.
  -u, --uuid            Print a random (v4) UUID.

Examples

$ rand 16
6548caf97a6c07132cf2eeeb2264270b
$ rand 32 --base64
kPRmfq/2UPzUk7YAXADZzSpN8K6Z8JwweXkewYxj5lw=
$ rand 8 --binary | xxd
00000000: 0da2 41b4 7c3f a06d                      ..A.|?.m
$ rand 8 --seed=123
f1405ced8b9968ba
$ rand 16 --seed=123
f1405ced8b9968baf9109259515bf702
$ rand 32 --seed=123
f1405ced8b9968baf9109259515bf7025a291b00ff7bfd6a4cdb51d40f4b367c