Control the fan speed of the Macbook Air

reset_fan_speed.sh

#!/bin/sh

smc=/Applications/smcFanControl.app/Contents/Resources/smc
min_hex=$(python -c "print hex("2000" << 2)[2:]")
max_hex=$(python -c "print hex("6500" << 2)[2:]")

${smc} -k F0Mn -w ${min_hex}
${smc} -k F0Mx -w ${max_hex}

set_fan_speed.sh

# Control the fan speed of the Macbook Air
# NOTE: Don’t complain if you melt your computer.
function set_fan_speed {
  if [ -z "$1" ]; then min_speed=2000; else min_speed=$1; fi
  if [ -z "$2" ]; then max_speed=6500; else max_speed=$2; fi

  smc=/Applications/smcFanControl.app/Contents/Resources/smc

  min_hex=$(python -c "print hex("$min_speed" << 2)[2:]")
  max_hex=$(python -c "print hex("$max_speed" << 2)[2:]")

  ${smc} -k F0Mn -w ${min_hex}
  ${smc} -k F0Mx -w ${max_hex}
}