The mkdir (Make directory) and cd(Change Directory) Command is fine but you need to change your curl command as you have replaced the .tar.gz file with .zip and tar -xvf with unzip
Try the following command which may help you to install Hyoerledger without errors
mkdir ~/fabric-dev-servers && cd ~/fabric-dev-servers
curl -O https://raw.githubusercontent.com/hyperledger/composer-tools/master/packages/fabric-dev-servers/fabric-dev-servers.tar.gz
tar -xvf fabric-dev-servers.tar.gz