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#!/bin/sh
[ 0 -eq "$#" ] && >&2 echo 'usage: wipe <file>' && exit 1
[ ! -f "$1" ] && [ ! -d "$1" ] && >&2 echo "'$1' not found." && exit 1
confirm "sure?" || exit 1
>&2 printf "\n"
find "$1" -type f -print0 |
xargs -0I{} shred -uz "{}" &&
[ -d "$1" ] && # remove leftovver empty directories
find "$1" | tac | tr '\n' '\0' |
xargs -0I{} rm -d "{}" &&
>&2 echo "wiped."
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