Check temperature and set fan speed value of Nvidia card

nvidia-fanspeed.sh

#! /bin/bash
#
# nvidia-fanspeed
#
# `nvidia-fanspeed` check temperature and set fan speed value
#
# Requirements: nvidia-xconfig --cool-bits=4

##############################
# Custom configuration:
#   "TEMPERATURE(ºC) TARGET_SPEED(%)"
########
config=(
    "35 0"
    "40 20"
    "45 30"
    "50 40"
    "60 50"
    "65 60"
    "70 70"
    "75 80"
    "80 90"
    "100 100"
)
##############################

# Set fan control
nvidia-settings -a "GPUFanControlState=1" > /dev/null 2>&1

# Get temperature value
temp() {
    echo $1
}

# Get speed value
speed() {
    echo $2
}

# Get current Nvidia temperature
current_gpu_temp() {
    nvidia-smi --query-gpu=temperature.gpu --format=csv,noheader,nounits || echo 0
}

# Set target fan speed
set_fan_speed() {
    nvidia-settings -a "[fan:0]/GPUTargetFanSpeed=$1" > /dev/null 2>&1
}

while true; do
    for values in "${config[@]}"; do
        if [ $(current_gpu_temp) -lt $(temp $values) ]; then
            break
        fi
    done
    set_fan_speed $(speed $values)
    sleep 5
done