@bartavi @b0rk Likely coincidence. Have a look at "man ascii" and look at characters Decimal 1 to 26. Those are for the most part what you will get if it doesn't already do something special (like Ctrl+C).

For example, Ctrl+H is character 8, which is backspace (but only the backspace character). Ctrl+I is a tab, and Ctrl+J is a newline '\n'. (This means Ctrl+M is actually a carriage return '\r', but your os likely translates both into '\n' in the input that your terminal programs receive).