可以通过参数控制生成密码中包括的字符种类

#!/usr/bin/perl use strict; use warnings; use Getopt::Std; sub show_help { print "Useage:n"; print "newp -aAnsln"; print "-att the password contains lower case letters(a-z)n"; print "-Att the password contains upper case letters(A-Z)n"; print "-ntt the password contains numerical character(0-9)n"; print "-stt the password contains special symbolsn"; print "-utt the password contains only unique charactersn"; print "-l lengtht set the password length(default: 6)n"; exit 0; } sub show_version { print "Version: 0.2.1 Changed the default option: -l 9 -Ana. 2016-4-15n"; exit 0; } ### main program use vars qw($opt_a $opt_A $opt_h $opt_l $opt_n $opt_s $opt_u $opt_v); getopts('aAhl:nsuv'); &show_version if $opt_v; &show_help if $opt_h; my $len = $opt_l || 9; # default length 9 my $opt_cnt = 0; my @rand_str = (); # store all the characters my @num = qw(0 1 2 3 4 5 6 7 8 9); my @ABC = qw(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); my @abc = qw(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); # my @sym = qw(! " $ % & ' * + - . / : ; < = > ? @ [ ] ^ _ ` { | } ~); my @sym = qw(! $ % & * + - . / : ; < = > ? @ [ ] ^ _ ` { | } ~); # no " ' unshift (@sym, '(', ')', '#', ','); # to prevent perl's complains or warnings. my @all_sym = (@num, @ABC, @abc, @sym); my @ch_src = (); if ((!$opt_a) && (!$opt_A) && (!$opt_n) && (!$opt_s)) { $opt_a++; $opt_A++; $opt_n++; } if ($opt_a) { $opt_cnt++; my $i = rand @abc; unshift @rand_str, $abc[$i]; if ($opt_u) { if ($i>=1) { $abc[$i-1] = shift @abc; } else { shift @abc; } } unshift (@ch_src, @abc); } if ($opt_A) { $opt_cnt++; my $i = rand @ABC; unshift @rand_str, $ABC[$i]; if ($opt_u) { if ($i>=1) { $ABC[$i-1] = shift @ABC; } else { shift @ABC; } } unshift (@ch_src, @ABC); } if ($opt_n) { $opt_cnt++; my $i = rand @num; unshift @rand_str, $num[$i]; if ($opt_u) { if ($i>=1) { $num[$i-1] = shift @num; } else { shift @num; } } unshift (@ch_src, @num); } if ($opt_s) { $opt_cnt++; my $i = rand @sym; unshift @rand_str, $sym[$i]; if ($opt_u) { if ($i>=1) { $sym[$i-1] = shift @sym; } else { shift @sym; } } unshift (@ch_src, @sym); } if ($len < $opt_cnt) { print "The count of characters[$len] should not be smaller " . "than count of character types[$opt_cnt].n"; exit -1; } if ($opt_u && $len > (@ch_src + @rand_str)) { print "The total number of characters[".(@ch_src + @rand_str). "] which could be contained " . "in password is smaller than the length[$len] of it.n"; exit -1; } foreach (1..$len-$opt_cnt) { my $i = rand @ch_src; unshift @rand_str, $ch_src[$i]; if ($opt_u) { if ($i>=1) { $ch_src[$i-1] = shift @ch_src; } else { shift @ch_src; } } } foreach (1..$len) { my $i = rand @rand_str; print $rand_str[$i]; if ($i>=1) { $rand_str[$i-1] = shift @rand_str; } else { shift @rand_str; } } print "n"; exit 0;

以上就是本文给大家分享的全部代码了，希望对大家学习Perl能够有所帮助