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Enable Function keys

Authors
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    Name
    Jimmy Lai
    Twitter

enable/disable the FN key temporarily or permanently

#Enable FN keys
echo -n 0 | sudo tee /sys/module/hid_apple/parameters/fnmode 

#Disable/Return to default
echo -n 1 | sudo tee /sys/module/hid_apple/parameters/fnmode

echo 'options hid_apple fnmode=0' | \
    sudo tee -a /etc/modprobe.d/hid_apple.conf

sudo mkinitcpio -P