我们以前把文本加密成二进制的内容，那如果要把加密的二进制还原成相关的ASCII码，是不是也能用shell脚本来实现呢？答案是可以的。
举下解码的实际例子：
二进制的内容为：010010000110010101101100 011011000110111100101100001000000111011101
解码后的ASCII码为： 10111101110010011011000110010000100001
该shell脚本(generate-wordlist.sh)的代码如下：
#!/bin/sh
# http://hektor.umcs.lublin.pl/~mikosmul/computing/shell-scripts/decode-binary
# Written by Michal Kosmulski <mkosmul _at_ users _dot_ sourceforge _dot_ net>
# This script is hereby put in the public domain.
#
# Decode ascii text written using binary digits into human readable form.
tr -d ' \n#\t' | (
while read -n 8; do
character=`echo -e "ibase=2;obase=1000;$REPLY\nquit" | bc`
echo -ne '\'$character
done
) |