#!/usr/bin/env sh
# YES_ZSH
# YES_BASH
# YES_DASH

trash() { ### @-
    ### output a given number of bytes from `/dev/random`.
    ###
    ### ```
    ### $ trash 10 | hexdump -e '15 1 "%02X " 1 1 "%02X\n"'
    ### CB 72 31 A1 BB F0 EC 9F 6E BE
    ### ```
    [ $# -le 1 ] || { printf "%s\n" "$0: too many arguments" >&2; return 1; }
    dd status=none if=/dev/random bs=1 count="${1:?missing count argument}"
}

[ "${SOURCING:-0}" -gt 0 ] || trash "$@"