Hi @p.rudra27, welcome to the Cayenne Community!
From your screenshot, it looks like the issue is that you're trying to download the install file (the
wget command) to a directory (/
etc) that you don't have permission to write to, so it's denying you access to write the file. There are a few ways you can work around this:
cd ~ to return to your user home directory which you'll have write access in, then run the
sudo bash commands again.
If you really want to download the installer to
/etc, you can enter
sudo in front of the
wget command to elevate your permissions to write there.