Pompé à partir d'ici :
https://gist.github.com/ecampidoglio/5009512
A Bash script that prints the current state of the CPU on a Raspberry Pi. It displays variables like temperature, voltage and speed.
Créer un fichier cpustatus.sh
nano cpustatus.sh
Y insérer :
#!/bin/bash
# cpustatus
#
# Prints the current state of the CPU like temperature, voltage and speed.
# The temperature is reported in degrees Celsius (C) while
# the CPU speed is calculated in megahertz (MHz).
function convert_to_MHz {
let value=$1/1000
echo "$value"
}
function calculate_overvolts {
# We can safely ignore the integer
# part of the decimal argument
# since it's not realistic to run the Pi
# at voltages higher than 1.99 V
let overvolts=${1#*.}-20
echo "$overvolts"
}
temp=$(vcgencmd measure_temp)
temp=${temp:5:4}
volts=$(vcgencmd measure_volts)
volts=${volts:5:4}
if [ $volts != "1.20" ]; then
overvolts=$(calculate_overvolts $volts)
fi
minFreq=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq)
minFreq=$(convert_to_MHz $minFreq)
maxFreq=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq)
maxFreq=$(convert_to_MHz $maxFreq)
freq=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq)
freq=$(convert_to_MHz $freq)
governor=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor)
echo "Temperature: $temp C"
echo -n "Voltage: $volts V"
[ $overvolts ] && echo " (+0.$overvolts overvolt)" || echo -e "\r"
echo "Min speed: $minFreq MHz"
echo "Max speed: $maxFreq MHz"
echo "Current speed: $freq MHz"
echo "Governor: $governor"
exit 0
Le rendre exécutable :
chmod +x cpustatus.sh
Et enfin lancer le script pour qu'il nous affiche les infos !
./cpustatus.sh
Option
Si on veut afficher en continu les valeurs dans un terminal, refresh chaque 1 seconde :
watch -n 1 ./cpustatus.sh
Created by minos • Last edit by minos on 08.07.16 08:49
Script bash : CPU temp, speed, voltage
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