Safe
Check whether Node.js is installed
Shows the Node.js version on this computer before you install or update OpenClaw.
node -vInstall and first runMacLinuxWindows
What it does
Shows the Node.js version on this computer before you install or update OpenClaw.
When to use it
Use it first when the install guide asks for Node.js, or when you are not sure whether this machine already has Node installed.
What happens next
The terminal prints a version like `v20.x`. If Node is missing, the shell tells you the command cannot be found.
Risk warning
Safe. It only reads local tool information and does not change anything.