fnm 命令

常用示例

说明

fnm (Fast Node Manager) is a Node.js version manager written in Rust. It provides quick installation and switching between Node.js versions with minimal overhead. The tool reads .node-version or .nvmrc files for automatic version switching. Shell integration enables per-directory version selection without manual commands. fnm emphasizes speed with Rust implementation and cross-platform support including Windows.

参数

install _VERSION_ --lts

Download and install a Node.js version. Accepts full versions (18.17.0), major versions (18), `latest`, or `--lts` for the newest LTS.

use _VERSION_ --install-if-missing

Switch the current shell to _VERSION_. With `--install-if-missing`, installs the version first if it is not present.

default _VERSION_

Set the default global Node.js version used in new shells.

current

Print the active Node.js version.

list, ls

List all versions installed locally.

list-remote, ls-remote

List all versions available from the distribution mirror.

uninstall _VERSION_

Remove an installed Node.js version.

alias _VERSION_ _NAME_

Create a named alias for a version.

unalias _NAME_

Remove a named alias.

exec --using=_VERSION_ _CMD_

Run _CMD_ with a specific Node.js version without switching the shell.

env --shell=_SHELL_ --use-on-cd

Print shell configuration to be eval'd; enables fnm in the current shell and optionally auto-switches on directory change.

completions --shell=_SHELL_

Print shell completion scripts for bash, zsh, fish, or PowerShell.

--node-dist-mirror _URL_

Use an alternative Node.js distribution mirror.

--fnm-dir _PATH_

Override the fnm installation directory (default `~/.fnm`).

--log-level _LEVEL_

Control verbosity (quiet, error, info).

--version, -V

Display version information.

--help, -h

Display help information.