Temperature not showing - Arch

[JustCryen]

I'm running Arch so this might be the reason of the script malfunctioning… maybe.
I have installed the Tmux Plugin Manager, used it to download/install the plugin (it appears in the .tmux/plugins), restarted tmux and I still can't see a temperature readout.

Have I misunderstood the installation process or should it actually work now?

[JustCryen]

I noticed that the command sensors | egrep '^Package' | sed '/^\s*$/d' | awk '{printf("%f ", $4)}' gives this output:
63.000000 %
I'm not sure it the "%" should be included as it's probably an escape sign.
sh temp_cpu.sh outputs this

temp_cpu.sh: line 30: printf: 63.000000: invalid number
63ºC
temp_cpu.sh: line 43: printf: 63.000000: invalid number
 63ºC%