A shell script or software for generating random passwords

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1

Hi,

Is there an shell script/batch file to genarate random passwords which expires after a stipulated time period? Please suggest a software which does this for AIX and windows both else.

Thanks.

2

I don't understand your requirement completly. To generate a random passwd you can use the bellow perl script . You can modify it as per your requirement.

#!/usr/bin/perl

sub randomPassword {
 my $password;
 my $_rand;

 my $password_length = $_[0];
 if (!$password_length) {
  $password_length = 10;
 }

 my @chars = split(" ",
 "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 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 - _ % # | 0 1 2
  3 4 5 6 7 8 9 ! ? $ @");

 srand;

 for (my $i=0; $i <= $password_length ;$i++) {
  $_rand = int(rand 71);
  $password .= $chars[$_rand];
 }
 return $password;
}

print "\n\nRandom Password = ", randomPassword(9);
print "\n\n";
3

Hi Amit,

Thanks for your reply.
I will again put forth my requirement. I want a random password generator which generates a password.Then we want it should be allocated to a user(He may be oS or databse user on the AIX).Also we want that this password should expire within a specifeid time(say for example 6hrs on in 24 hrs). As we want to provide this account access temporarily for some set of works only. Hope I am able to claer all your doubts this time.

I want to achieve all these activities through a shell script. Please help.

Activities as:
1)Generate a random apassword to a already exsisting user(OS or DB user)
2)In case its a db user......it should 1st connect to DB and then allocate the password.
3) Password should expire in a stipulated time

Thanks.

4

Hi,

Any suggestions on this query.

Thanks

5

now you already have the script for passwd generation on random.

Now using expect u can change the current passwd with ur random passwd .

And for setting the expiration of passwd please check the man pages of "chage".

Try to proceed with this info . Let us know if you face any issue.

KR
Amit

6

Hi,

Thanks for your suggestion.
I am not so good at shell script.Can you please suggest how should I take the generated password and assign it to the userid using expect. Please provide the outline script to do so if avaialble.