Running nodejs on cpanel only works the first time – then I get ‘command not found’

After installing nodejs on cpanel for the first time it runs and works perfectly but when I run it again it gives me the error: ‘command not found’. wget -qO- | bash export NVM_DIR=”$HOME/.nvm” [ -s “$NVM_DIR/” ] && \. “$NVM_DIR/” [ -s “$NVM_DIR/bash_completion” ] && \. “$NVM_DIR/bash_completion” nvm install node nvm use node