I have an variable which has an value like 12345678, Want to change the value to 12 34 56 78. Below is an code which does that, but it is also inserting an space at the end. Does any one known what's wrong??? 

while ($i < 4)
{
        $ID1=`printf "%024x", $i`;
        printf "Value of ID1 = $ID1\n";
        $ID1 = join ' ', unpack("(A2)*",$ID1);
        print "After join command:$ID1\n";
        $i++;
}



bash-3.00# ./genID.pl
Value of ID1 = 000000000000000000000000,
After join command:00 00 00 00 00 00 00 00 00 00 00 00 ,
Value of ID1 = 000000000000000000000001,
After join command:00 00 00 00 00 00 00 00 00 00 00 01 ,
Value of ID1 = 000000000000000000000002,
After join command:00 00 00 00 00 00 00 00 00 00 00 02 ,
Value of ID1 = 000000000000000000000003,
After join command:00 00 00 00 00 00 00 00 00 00 00 03 ,

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In reply to perl Question by perlb

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