在命令行上使用 Node.js 版本？ (不是 REPL)

I want to get the version of node.js on the command line - I'm expecting to run a command like:

node -version

but that doesn't work. Does anybody know what the command line would be? (ie not the REPL)

The command line for that is:

node -v

Or

node --version

Note:

If node -v doesn't work, but nodejs -v does, then something's not set up quite right on your system. See this other question for ways to fix it.

If you're referring to the shell command line, either of the following will work:

node -v

node --version

Just typing node version will cause node.js to attempt loading a module named version, which doesn't exist unless you like working with confusing module names.

Try nodejs instead of just node

$ nodejs -v
v0.10.25

By default node package is nodejs, so use

$ nodejs -v

or

$ nodejs --version 

You can make a link using

$ sudo ln -s /usr/bin/nodejs /usr/bin/node

then u can use

$ node --version

or

$ node -v

Node:

node --version or node -v

npm:

npm --version or npm -v

V8 engine version:

node -p process.versions.v8

find the installed node version.

$ node --version

or

 $ node -v

And if you want more information about installed node(i.e. node version,v8 version,platform,env variables info etc.)

then just do this.

$ node
> process
  process {
  title: 'node',
  version: 'v6.6.0',
  moduleLoadList: 
   [ 'Binding contextify',
     'Binding natives',
     'NativeModule events',
     'NativeModule util',
     'Binding uv',
     'NativeModule buffer',
     'Binding buffer',
     'Binding util',
     ...

where The process object is a global that provides information about, and control over, the current Node.js process.

One cool tip if you are using the Atom editor.

$ apm -v
apm  1.12.5
npm  3.10.5
node 4.4.5
python 2.7.12
git 2.7.4

It will return you not only the node version but also few other things.

If you want to check in command prompt use node -v or node --version

v6.9.5

If u have node.exe then in node you can give.

>process
process {
  title: 'node',
  version: 'v6.9.5',
  .......

You can check if you have Node and Npm installed by typing:

$node --version && npm --version

Repl Command to find the Nodejs Version

$node
>process.version
`v8.x`