This script shows temperature from builtin sensors on Raspberry Pi or some other pi's.
Without arguments show CPU and GPU values in human readable format.
If -r specified, show raw CPU temperature in 0.001 °C units (e.g. 42123).
If -rh specified, show CPU temperature in °C units (e.g. 42.123).
To be able to run it by single letter command t you may put it to /usr/local/bin/t (or create a symlink) and make it executable by chmod +x /usr/local/bin/t.