I am unable to (and, frankly, didn't expect to be able to) reproduce your problem in isolation. I tried this: 

$ perl -e 'print "X: "; my $x = <STDIN>; print "X=", $x'

[download]

Regardless, of whether I terminate the input with <Enter>, Ctrl-J (newline) or Ctrl-M (carriage return), it works fine: 

$ perl -e 'print "X: "; my $x = <STDIN>; print "X=", $x'
X: 123
X=123
$

[download]

Adding '$|=0;' or '$|=1;', as the first statement, makes no difference: I get the same result as above (regardless of how I terminate the input).

Try what I did and see how you go. If it works OK, then there's probably something else in your code causing the problem; if it's still not working, look for issues with whatever shell you're running, non-standard keymapping, hardware problems (perhaps try starting a new shell or even rebooting).

— Ken

In reply to Input problem with Enter key... by kcott
in thread Input problem with Enter key... by PriNet

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