Bash script uses vcgencmd on Raspberry Pi with bc to calculate F value of Temp

gistfile1.sh

#!/bin/bash
######################################################################
# Raspberry Pi
#
# Gross Script by Dweeber (Kevin Reed) <[email protected]>
# V1.0 2012-09-19
#
# Use the vcgencmd to obtain the Temp of the SOC
# then calculates the F value using bc.
#
# Requires bc to be loaded. If not then
# apt-get install bc
#
######################################################################
tm=`/opt/vc/bin/vcgencmd measure_temp`
tc=`echo $tm| cut -d '=' -f2 | sed 's/..$//'`
tf=$(echo "scale=2;((9/5) * $tc) + 32" |bc)
echo temp = $tf\'F \($tc\'C\)

a) Why use 4 steps if you can do it in two:

```tc=$(/opt/vc/bin/vcgencmd measure_temp | awk -F"=|'" '{print $2}')```

b) degrees temperature is abbreviated as "°'" and not "'*"

echo "temp=$tf°F \($tc°C\)"

Tried to use markdown in the last comment which obviously didn't work. Just disregard the stars and backticks.

without relying on vcgencmd or bc:

awk '{printf("%.1f\n",$1/1e3)}' /sys/class/thermal/thermal_zone0/temp

or even

awk '{printf("%.1f °F\n",$1*1.8/1e3)}' /sys/class/thermal/thermal_zone0/temp

in the colonies.

You left out a constant:

awk '{printf("%.1f°F\n",(($1*1.8)/1e3)+32)}' /sys/class/thermal/thermal_zone0/temp

That will get you the temperature in degrees Fahrenheit.