oldie but goldie solution to generate random salts, or whatever strings etc + a simple example of password generator
#!/usr/bin/perl
######
# DES/MD5 password generator
# AltBlue 1999/02/10
######
# Usage:
# ./mkpass [<password>]
# - if no password supplied, a random password will be picked up.
#########
use strict;
use Crypt::PasswdMD5;
my $password = defined $ARGV[0]?$ARGV[0]:random_hash(8,32);
print "CLEAR:\t", $password,
$/, "DES:\t", crypt($password,random_hash(2,2)),
$/, "MD5:\t", unix_md5_crypt($password,random_hash(8,8)),
$/;
sub random_hash {
my ($ash,$ml) = ('',((defined$_[0]&&$_[0]>0)?$_[0]:4));
my $Ml=(defined$_[1]&&$_[1]>=$ml)?$_[1]:$ml+5;
$ash .= ('.','/',0..9,'A'..'Z','a'..'z')[rand 64]
foreach(1..($ml+int(rand $Ml-$ml)));
$ash;
}
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