Arm Mbed OS support forum

Can not install Mbed Studio on Ubuntu 20.1

Hello everybody.
I downloaded Mbed Studio Installer from https://os.mbed.com/studio/
I gave me this sh file: MbedStudio-1.1.0.sh
I run it with sudo sh MbedStudio-1.1.0.sh

It gave these two errors:
**MbedStudio-1.1.0.sh: 15: [: Illegal number: **
MbedStudio-1.1.0.sh: 596: Syntax error: “(” unexpected

Any idea how to fix it?

Thanks in advanced