用shell写的字典生成工具

#!/bin/bash
#by leo108
#使用方式：./genpwd.sh 密码类型 密码长度 生成文件
#密码类型如果是1，则是数字+字母，如果是其他则是数字
#例如：./genpwd.sh 1 4 pwd.txt，生成长度为4的数字+字母密码
type=$1
length=$2
output=$3
if [ $type -eq "1" ]; then
	g_Dict=( 0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z )
else
	g_Dict=( 0 1 2 3 4 5 6 7 8 9 )
fi
count=0
total=1
if [ -e tmp.txt ]; then
	rm tmp.txt
fi
for ((i=0;i<$length;i++));
do
	let "total*=${#g_Dict[@]}"
done
echo "Total:"$total
declare -a Dict
declare -a Array
bStop=1
for ((i=0;i<$length;i++));
do
	Array[$i]=0
done
while [ $bStop != 0 ]; do
	for ((i=0;i<$length;i++));
	do
		Dict[$i]=${g_Dict[${Array[$i]}]}
	done
	echo ${Dict[@]} >> tmp.txt
	let "count+=1"
	let "tmp=count%10000"
	if [ $tmp -eq 0 ]; then
		echo $count" Generated"
	fi
	for ((j=$length-1;j>=0;j--));
	do
		let "Array[$j]+=1"
		if [ ${#g_Dict[@]} -ne ${Array[$j]} ]; then
			break
		else
			Array[$j]=0
			if [ $j -eq 0 ]; then
				bStop=0
			fi
		fi
	done
done
sed -r 's/ +//g' tmp.txt >> $output
echo "Finish"
rm tmp.txt

参考来源：http://www.freebuf.com/tools/4086.html

# ./genpwd.sh 1 4 pwd.txt
Total:1679616
10000 Generated
20000 Generated
……

总觉得效率还是太低了。。。{这时就应该是多线程发挥威力的地方了！}

下面这段shell代码是之前发现的，今天碰到上面这个(因为觉得上面这个效率低而且自定义性不够强)所以突然想起来了，用Everything搜索出来，然后执行看了下效果，觉得还不错，就先记下来了，放在下面：

#!/bin/bash
## Koen Noens, December 2007
## word generator : random 'words'
## with given length, or range
## with choice of wharacters to be used

chars0="a b c d e f g h i j k l m n o p q r s t u v w x y z"
chars1="A B C D E F G H I J K L M N O P Q R S T U V W X Y Z"
chars2="0 1 2 3 4 5 6 7 8 9"
chars3="& | é @ € " # ' ( § ^ è ! ç { à } ) - _ ° ^ " $ [ ] % ù £ µ = + ~ : / ; . , ? "

function increment { #recursive or iterative ???
	INPUT=$1
	[[ ${#INPUT} -ge $minlen ]]  && echo $1
	if [[ ${#INPUT} -lt $maxlen ]]; then
		for c in $chars; do
			increment $1$c
		done
	fi
}

function showUsage {
	echo "$0 MAXLEN [MINLEN] [a [A [n [p]]]]"
	echo
	echo " MAXLEN integer Maximum lenght, or specific lengt if MINLEN is omitted"
	echo " MINLEN integer Minimum lenght, equals MAXLEN if omitted"
	echo ""
	echo " characters:"
	echo " a lower case  a-z"
	echo " A Uppercase  A-Z"
	echo " n numeric  0-9"
	echo " p punctuation . ?"
}

## argument handler
[[ "$1" = "" ]] && showUsage && exit
maxlen=$1
[[ $2 -eq 0 ]] && minlen=$maxlen || minlen=$2

for arg in "$@"; do  # "$@" ???
	case $arg in
		a) chars="$chars $chars0" ;;
		A) chars="$chars $chars1" ;;
		n) chars="$chars $chars2" ;;
		p) chars="$chars $chars3" ;;
	esac;
done

#fallback
[[ "$chars" = "" ]] && chars="$chars0" # Default is $chars0

## kickof
for i in $chars; do  # call the function defined before
	increment $i
done

来源：http://users.telenet.be/mydotcom/program/shell/generatewords.txt
注：在该网站下还有不少别的很好的shell脚本。

使用示例（保存为generator.sh，添加可执行权限）：

$ ./generator.sh 4 4 a #生成4位形如：aaaa-zzzz的字符组合
$ ./generator.sh 4 4 A #生成4位形如：AAAA-ZZZZ的字符组合
$ ./generator.sh 4 4 n #生成4位形如：0000-1111的数字组合