EC2 Userdata script : nvm cannot find .bashrc

Question

I have these four lines at the start of my ec2 user data script to install nvm and Node.js. This never seems to succeed.

touch ~/.bashrc curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash source ~/.bashrc nvm install 16

The nvm installer cannot find the .bashrc and conks out:

Cloud-init v. 22.2.2 running 'modules:final' at Fri, 24 Jan 2025 07:28:19 +0000. Up 14.32 seconds. % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 16555 100 16555 0 0 54955 0 --:--:-- --:--:-- --:--:-- 55000 => Downloading nvm as script to '/.nvm' => Profile not found. Tried ~/.bashrc, ~/.bash_profile, ~/.zprofile, ~/.zshrc, and ~/.profile. => Create one of them and run this script again OR => Append the following lines to the correct file yourself: export NVM_DIR="$HOME/.nvm" [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm => Close and reopen your terminal to start using nvm or run the following to use it now: export NVM_DIR="$HOME/.nvm" [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm /var/lib/cloud/instance/scripts/part-001: line 6: nvm: command not found

Not sure what I'm doing wrong. Any ideas?

What shell does it use? You can find this out by running echo $SHELL. — Mureinik
– Mureinik, Commented Jan 24 at 10:51

Mureinik · Accepted Answer · 2025-01-24 11:08:23Z

This seems like a bug in nvm. I was able to reproduce the error on a local Ubuntu container, and then I spun up a new container, replaced nvm 0.39.7 with the latest 0.40.1, and it worked just fine:

touch ~/.bashrc curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash source ~/.bashrc nvm install 16

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