Get temperature from an API. Decide if hot or cold. A very short Bashscript

hotornot.sh

#!/bin/bash
t=$(curl -s https://wetter.hs-worms.de/api/v3/data | jq '.temperature.out')
t1=15
# old school a=$(echo "$t<$t1"|bc)
a=$(( t<t1 ))
if [[ $a -eq 1 ]]; then
echo "Uh, this is cold !"
else
echo "Uff,rather warm !"
fi

Dieses Script ist Teil meines Vortrags gewesen. API
https://www.untergang.de/index.php/konferenzen-thema-linux/lpd-23-1-in-worms.html