fetch-latest-widevine.sh - not found?

[mrkapqa]

Hello,

i tried your alternative route for chromium

however, i get errors on ubuntu 20.04

`npacking objects: 100% (36/36), 14.36 KiB | 1.79 MiB/s, done.
./fetch-latest-widevine.sh: 13: [[: not found
/usr/bin/wget
/usr/bin/curl
./fetch-latest-widevine.sh: 19: [[: not found
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 145 100 145 0 0 1450 0 --:--:-- --:--:-- --:--:-- 1450
./fetch-latest-widevine.sh: 25: [[: not found
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 6180k 100 6180k 0 0 11.2M 0 --:--:-- --:--:-- --:--:-- 11.2M

[1]+ Stopped git clone https://github.com/proprietary/chromium-widevine.git && cd chromium-widevine && ./use-standalone-widevine.sh && killall -q -SIGTERM chromium-browser || killall -q -SIGTERM chromium && exec $(command -v chromium-browser || command -v chromium) ./test-widevine.html
`