I got it. It's a little embarasing : each end of line has"\r\n" at the end. So by using this replace statement it works :

$start_input =~ s/\r\n//d;

So, if you ever get something similar, think about the "\r" before the "\n".

In reply to Re^2: Chomp doesn't work by M15U
in thread Chomp doesn't work by M15U

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