Hello monks!

My program needs to process data and periodically poll for keyboard input.
What function can I use on the third line to check if a key was pressed, without waiting forever for input? 

while (1) {
  sleep(1);

  if key was pressed {   # HELP, how can I check?
    print "$key was pressed\n";
    exit if $key eq 'q';
  }

  do stuff...
}

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In reply to how to check for keyboard input by redss

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