I am trying to install the cubeide, but it has not been possible by running the .sh What is the problem?

[DQuir.1]

diboter@diboter:~$ cd Descargas

diboter@diboter:~/Descargas$ sudo bash en.en.st-stm32cubeide_1.1.0_4551_20191014_1140_amd64.sh

[sudo] contraseña para diboter:

en.en.st-stm32cubeide_1.1.0_4551_20191014_1140_amd64.sh: en.en.st-stm32cubeide_1.1.0_4551_20191014_1140_amd64.sh: Es un directorio

diboter@diboter:~/Descargas$ chmod +x en.en.st-stm32cubeide_1.1.0_4551_20191014_1140_amd64.sh

diboter@diboter:~/Descargas$ ./en.en.st-stm32cubeide_1.1.0_4551_20191014_1140_amd64.sh/

bash: ./en.en.st-stm32cubeide_1.1.0_4551_20191014_1140_amd64.sh/: Es un directorio