---
syntax: markdown
tags: [tldr, linux]
source: https://github.com/tldr-pages/tldr.git
---
# mcookie

> Generates random 128-bit hexadecimal numbers.
> More information: <https://manned.org/mcookie>.

- Generate a random number:

`mcookie`

- Generate a random number, using the contents of a file as a seed for the randomness:

`mcookie {{[-f|--file]}} {{path/to/file}}`

- Generate a random number, using a specific number of bytes from a file as a seed for the randomness:

`mcookie {{[-f|--file]}} {{path/to/file}} {{[-m|--max-size]}} {{number_of_bytes}}`

- Print the details of the randomness used, such as the origin and seed for each source:

`mcookie {{[-v|--verbose]}}`
