mirror of
https://github.com/notwa/rc
synced 2024-06-01 15:33:07 -07:00
18 lines
455 B
Bash
18 lines
455 B
Bash
#!/usr/bin/env sh
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# YES_ZSH
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# YES_BASH
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# YES_DASH
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trash() { ### @-
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### output a given number of bytes from `/dev/random`.
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###
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### ```
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### $ trash 10 | hexdump -e '15 1 "%02X " 1 1 "%02X\n"'
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### CB 72 31 A1 BB F0 EC 9F 6E BE
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### ```
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[ $# -le 1 ] || { printf "%s\n" "$0: too many arguments" >&2; return 1; }
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dd status=none if=/dev/random bs=1 count="${1:?missing count argument}"
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}
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[ "${SOURCING:-0}" -gt 0 ] || trash "$@"
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