1 set terminal png size 600,250
8 set output '/dev/shm/1.png'
9 plot "/dev/shm/temp.tsv" using 1:2 with points title "DS18B20 deg. C"
11 set output '/dev/shm/2.png'
12 plot "/dev/shm/temp.tsv" using 1:($3 > 1 ? $3 : '') with dots title "DHT22 deg. C"
14 set output '/dev/shm/3.png'
15 plot "/dev/shm/temp.tsv" using 1:($4 > 3 ? $4 : '') with dots title "DHT22 % hum"