How to install and use NVM (Node Version Manager) (2023)

HimNode Version Manager (NVM)is an open source version manager forNode.js (Nodo). NVM is easy to understand and works in any POSIX compatible shell (e.g. sh or bash). NVM allows you to easily install and manage different versions of Node and switch between them via the shell. This guide describes how to install and use NVM to connect different versions of Node.

Nodes change quickly and testing applications with different versions is often difficult. Because NVM allows for quick and effortless switching between versions of Node, it's much easier to test version compatibility and upgrades with different libraries. NVM stores node versions and associated modules in your home directory, i.esudodoes not have to be used. NVM also simplifies the install and build process by eliminating the need to obtain node releases directly from the distribution channel.

A full NVM installation consists of the following general steps. Each step is described below.

1. Install and configure NVM
2. Using NVM to install Node
3. Using NVM to run node
4. Create NVM aliases

These instructions show how to install NVM and are generic to most Linux distributions, although some of the.bashrcInstructions may vary slightly in different shells. You can install and use NVM regardless of whether you already have Node installed. NVM changesAwayVariables to select different versions of Node to make it work with existing installations.

1. Install NVM with aReisÖwget.

   How to install NVM withReis, run the following command:

   curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.37.2/install.sh | intention

   How to install NVM withwget, run the following command:

   wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.37.2/install.sh | intention

   Use

   You can also download and install NVM using GIT or manually. See the GIT section ofNVM documentation guidefor detailed instructions.

2. Source for new instructions added to NVM.bashrcduring the installation process. You can log out and back in to the shell console, or get yours manually.bashrcProcess. This file is almost always located at the root of your home directory.

   Font ~/.bashrc

   As a workaround, you can run the new instructions in the same console to apply them immediately.

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

   Use

   NVM uses the following environment variables. We recommend leaving them at their default settings. Be careful if you decide to change them for any reason.

   (Video) Node Version Manager Windows 10. Easy way to switch Node version. Install nvm.

   • NVM_DIR - NVM installation directory.
   • NVM_BIN: The location of the node thatNode-Paketmanager(NPM) and global packages are installed for the active version of Node.
   • NVM_INC: The directory for node include files (for building C/C++ plugins).
   • NVM_CD_FLAGS: The flags used to maintain compatibilitye.g.
   • NVM_RC_VERSION: The version of the.nvmrcfile (if used).

3. Confirm that you have successfully installed NVM.

   Befehl -v nvm

   If the installation was successful, NVM will returnnvm. when you see the messagenvm: Command not found, confirm that the original installation completed successfully, and then repeat step 2 of this section to complete the.bashrcoffice hours.

   nvm

4. You can confirm the running NVM version with the following command:

   nvm --version

NVMdo not install pcThe command loads, compiles, and installs the specified version of Node. You can install as many versions of Node as you like.

1. To install the latest version of Node, run:

   nvm-Installationsknoten

   After a successful installation, NVM displays information about the installation.

   Now with Node v15.5.1 (npm v7.3.0) Create a default alias: default -> node (-> v15.5.1)

   Use

   When used in an NVM commandesis an alias for the latest version of Node. The first version of Node you install automatically becomes the default version. A new shell instance is created with the current node version set toBy default. the pseudonymSystemrefers to the version installed on the node system (if any).

2. To install a specific version of Node, specify the major or minor version number. You can view a list of all available node versionsls-remotoDomain.

   nvm ls-control remoto

   NVM displays a long list of available versions in the following format:

   v5.12.0v6.0.0

3. Install any additional versions of Node that you want to use. You can specify a major or minor version of Node to install. When you install a new version of Node, NVM immediately starts using it and marks it as the current version.

   nvm install 13.10.1 # Specify minor version nvm install 14 # Specify major version only

   Use

   If you only provide the major version number for a node version, NVM installs the latest version of that version. You can determine the latest version of each version of the outputnvm ls-control remoto. The node also shows the exact version you selected after installation (e.g.Now use node v14.15.4). If you specify an unavailable node version, NVM responds with the error messageVersion '15.0.2' not found: Try 'nvm ls-remote' to find available versions.

1. Check all installed versions of Node with thelsDomain.

   (Video) How to install and use Node Version Manager (NVM)

   nvm ls

   NVM returns a list of all node versions and aliases, along with an arrow showing the current version. Here is an example output:

   v13.10.1v14.15.4-> v15.5.1default -> node (-> v15.5.1)iojs -> N/A (default)node -> stable (-> v15.5.1) (default) stable -> 15, 5 ( -> v15.5.1) (Standard)

To select a different version of Node, use theuso nvmDomain. Enter the node version number (major or minor) or an alias such ases.

no use nvm

Ö

what NVM 14

NVM confirms that you are now using the new version.

Now use node v14.15.4

You can also confirm the current version of Node withnvm real.

nvm real

NVM returns the current version number again.

v14.15.4

To switch to a different version of Node and immediately open a Node console, usenvm run. HimrunThe command is very similar touso nvmin all other Interests.

nvm runtime node

NVM confirms that the selected version of Node is now running and returns a Node.

Running Node v15.5.1 (npm v7.3.0) Welcome to Node.js v15.5.1. Type ".help" for more information.>

You may find it convenient to refer to a version of Node with a different or more memorable name. NVM already provides some predefined patterns like e.gBy defaultjes, which refers to the latest version. But you can use themPseudonymto change the value of an existing alias or create a new alias.

1. Use oalias nvmCommand to change the default version of the node. follow thatPseudonymkeyword withBy defaultAlias ​​and the new version of Node for reference.

   nvm aliases 14 by default

   NVM passes the new value to the alias.

   Standard -> 14 (-> v14.15.4)

2. Use oalias nvmCommand to create a new alias. The following example defines a new onemaintenanceAlias ​​als Node-Version 13.10.1.

   (Video) Install (NVM) Node Version Manager Mac

   Alias ​​maintenance nvm 13.10.1

   NVM commits the new alias.

   Maintenance -> 13.10.1 (-> v13.10.1)

3. With you can display all new and old aliasesnvm lsDomain.

   nvm ls

Each version of Node.js can be in one of the following three release stages: Current, Long Term Active Support (LTS), and Maintenance. The LTS release version of Node.js includes new features, bug fixes, and updates approved as part of the release pipeline. This section shows how to install the latest LTS version of Node.js using NVM.

Use the following command to install the latest LTS version of Node.js on your system:

install nvm --lts

You should see the following output:

Installing the latest version of LTS. Downloading and installing Node v16.15.1... https://nodejs.org/dist/v16.15.1/node-v16.15.1-darwin-x64.tar.xz Downloading...#### ### # # ############################################### ## # # ########################################### 100.0% checksum calculate with shasum - a 256 checksums matched! Now with node v16.15.1 (npm v8.11.0)

After the installation completes, NVM will automatically switch to the latest LTS version of Node.js that you just installed.

To install a specific LTS release series (a version other than the latest version), use the- esArgument along with the line name of the version you want to install.

nvm install --lts=argon

The sample command installs the Node.js LTS "argon" line. refer toNode.js version pagefor LTS version names.

Use the following command to switch to the latest LTS version of Node.js that is already installed on your system:

use nvm --lts

Now with node v16.15.1 (npm v8.11.0)

Use the following command to switch to a specific LTS version of Node.js:

nvm usa lts/argon

The example command switches to the Node.js LTS "argon" line.

Now with node v4.9.1 (npm v2.15.11)

Although NVM is very easy to use, it also offers some advanced features. see theNVM GitHub pagefor a complete list of all advanced topics.

1. With NVM you can import packages from a previous version of Node. HimInstall NVMThe command can be used with the optional command-reinstall-packages-from=Flag to install a new version of Node with packages from a previous version. The following command installs the latest version of Node, but also reinstalls the Node packages.By defaultversion of Node and link them.

   nvm-Installationsknoten --reinstall-packages-from=default

   Use

   Reinstalling packages does not update the NPM version.

   (Video) Install NVM on Windows (Node Version Manager)

2. NVM allows you to define custom colors to represent the different versions and aliases of Node. These colors are defined in theNVM GitHub page. use the commandnvm set-colors <color key>. If you add the- No colorsmarks a command, the information is displayed in black and white.

   nvm specifies rgBcm colors

3. You can also specify a default node version number within the.nvmrcProcess. This file can be in the root directory or any parent directory. The specified version in.nvmrcUsed when no version is specified on the command line.

NVM allows you to uninstall versions of Node that you no longer need.

1. Run the commandNVM uninstallwith the node version you want to remove. You cannot remove a version you are currently using, so you must first switch to a different version.

   uninstall nvm 13.10.1

   NVM confirms that the node version has been removed.

   Uninstalled node v13.10.1

If you no longer want to use NVM, you can uninstall it withgo downstairsDomain.

1. Disable NVM with thedisable nvmDomain. This will clear all path variables.

   disable nvm

2. Uninstall NVM.

   download nvm

3. wash your.bashrcfile by removing the following lines:

   export NVM_DIR="$HOME/.nvm"[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This NVM will be loaded

More information

For more information on this topic, see the following resources. While they are provided in the hope that you will be helpful, please note that we cannot guarantee the accuracy or timeliness of externally hosted materials.

• NVM's GitHub page