What I find weird is that the '\n' are gone when I pipe or use redirection. So come these two runs don't give the same output, that's what I would like to know :

[gargle@vlds204 reporting]$ ./test.pl 
password: x
alfa
beta
[download]

[gargle@vlds204 reporting]$ ./test.pl | tee test.txt
x
password: alfabeta[gargle@vlds204 reporting]$ 
[gargle@vlds204 reporting]$
[download]