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Shell Programming and Scripting

display unique number

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# 1  
Old 06-02-2008
display unique number
Hi,

how i can display all the unique number from my random number script below;

Code:
#!/usr/bin/perl
use strict;

my @alphanum = ( 'A' .. 'Z', 'a' .. 'z', 0 .. 9);
my $random = join('', map($alphanum[rand($#alphanum)],(1..5)));

print "$random\n";

Thank You.
# 2  
Old 06-02-2008
Looks like a homework, but still - what have you done so far, did you write this script ? Hint : check for existence of digit, then extract the unique ones. Look for perl regex, there are many examples in the forum.
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