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How often have you accidentally pressed
ctrl+s and had your terminal frozen? I don't understand this default mapping at all. It should be gone from Linux installations. If you're a newbie you might have even thought that the terminal has died (I did think so, and I'd restart the terminal when that happened). Apparently you need to press
ctrl+q to unfreeze the terminal. These keys could be used for something better than freezing and unfreezing the console.
Get rid of these keys by running these commands:
stty stop undef stty start undef
Instead remap these combinations to something much more useful.