run-cpu-stress.sh fails when no logfilename is passed.

.pistressrc

@@ -1,4 +1,6 @@
-export PISTRESS_HOME=/home/pi/git/pistress
+if [ -z ${PISTRESS_HOME} ]; then
+  export PISTRESS_HOME=/home/pi/git/pistress
+fi
 export THERMAL_ZONE=/sys/class/thermal/thermal_zone0/temp
 
 export FIO_NUMJOBS=$(nproc)

README.md

@@ -1,5 +1,15 @@
 # pistress
 
-A bunch of scripts for measuring the core temperature of the Raspberry Pi 5 CPU under full load
+A bunch of scripts for measuring the core temperature of  any single board computer's CPU under full load
 and plotting graphs .
-Requirements: fio, gnuplot
+
+== Installation ==
+
+sudo apt install -y fio gnuplot
+cp .pistressrc ~
+
+Edit ~/.pistressrc and canfigure values for your needs.
+
+== Licence ==
+
+Licenced under MIT Licence See file LICENCE

bin/plot_cpu_temp.sh

@@ -1,5 +1,5 @@
-#!/bin/bash
+#! /usr/bin/env bash
-VERSION="1.00"
+VERSION="1.04"
 usage() {
   local name=${0##*/}
 
@@ -121,6 +121,6 @@ plot LOGFILE using 1:2 with lines lc rgb COLOR lw 2 title 'CPU-Temperatur';
 "
 
 
-echo "Plot erzeugt: $OUTFILE"
+echo "Plot generated: ${OUTFILE}"
 exit 0
 

bin/run-cpu-stress.sh

@@ -1,3 +1,5 @@
+#! /usr/bin/env bash
+
 if [ -f ~/.pistressrc ]; then
  . ~/.pistressrc
 else
@@ -8,6 +10,11 @@ else
  export THERMAL_ZONE=/sys/class/thermal/thermal_zone0/temp
 fi
 
+if [ -z "${1}" ]; then
+  echo "usage run-cpu-stress.sh <logfile>"
+  exit 1
+fi
+
 measure_temp.sh > ${1} &
 TPID=$!
 fio ${PISTRESS_HOME}/fio/fio_cpu