How to Clean Up NVM Node Versions Except One?

ACMer

6 months ago

Node.JS

How to Remove All NVM Node.js Versions Except One

NVM is Node Version Manager, which can be installed via github. With NVM, one can easily manage and installs multiple versions of Node/NPM on the same server.

Use Case

You’re using nvm (Node Version Manager) to manage multiple Node.js versions
You want to clean up your system and keep only one version: v22.16.0

Step 1: List All Installed Node Versions

nvm ls

Step 2: Use Bash to Uninstall All But One

Replace the KEEP_VERSION with the version that you want to keep. The following BASH script removes/uninstalls all versions expect the chosen one.

KEEP_VERSION="v22.16.0"

for version in $(nvm ls --no-colors | grep -oE 'v[0-9]+\.[0-9]+\.[0-9]+' | grep -v "$KEEP_VERSION"); do
  echo "Uninstalling $version..."
  nvm uninstall "$version"
done

Explanation

nvm ls --no-colors gives a clean version list
grep -oE extracts valid semantic version numbers
grep -v "$KEEP_VERSION" excludes the version you want to keep
nvm uninstall removes each other version one-by-one

Result

Your system now only retains v22.16.0
Disk space saved
Less version clutter

Tip:

nvm use v22.16.0

to ensure you’re using the correct version after cleanup.

DevOps / Site Reliability Engineering

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