开启时未安装Raspberry PI 2 nodejs

Question

Well, i'm working with nodejs in a Raspberry Pi 2. I installed it using nvm ( https://github.com/creationix/nvm ) using the command:

wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.29.0/install.sh | bash

Then, I tested if I could execute from the terminal the programs node and npm and I could, but, when I reboot the Raspberry PI 2 I type node or npm and the terminal prompts "command not found", so I have to go and type nvm install v4.2.2 on each startup.

Another problem that I have is that I can't execute sudo nvm, or sudo node.

I have the following questions:

• Have any of you had the same problem, and have you solved it?
• How can I uninstall nvm?
• How can I use nvm with sudo?

Answer 1

NVM is not on your PATH respectively it isn't sourced on reboot.

You have to follow the manual installation guide on https://github.com/creationix/nvm .

To activate nvm, you need to source it from your shell:

. ~/.nvm/nvm.sh

Add these lines to your ~/.bashrc, ~/.profile, or ~/.zshrc file to have it automatically sourced upon login:

export NVM_DIR="$HOME/.nvm" [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm

But you don't have to use nvm on a raspberry Pi, except you are really using many different versions of node. Otherwise i would recommend you to only install one version of node. Node comes with npm as default.