Re: Remove digits from a string and add timestamp to the result

[ww]

I'm with johngg on this.

WHY are you doing something that looks like makework? If you need to sort customers by alpha (the only plausible reason for your spec that I've dreamed up), you can do that with the datestamp in its initial position. This 4th line of this code is lifted almost verbatim from the doc for sort

my @old = qw(20120301Customer100 20120402Alsocust200 20130102Nothercu3
+00); 
my (@new, $item);

@new = sort { substr($a, 8) cmp substr($b, 8) } @old;

for $item(@new) {
    say $item;
}

See perldoc -f sort and perldoc -f substr. But for best results (and as has been asked before) tell us what you really want to do and WHY you think you need to do that.