nvs auto
nvs auto on
nvs auto off
When invoked with no parameters, nvs auto searches for the nearest .node-version file in the current directory or parent directories. If found, the version specified in the file is then downloaded (if necessary) and used. If no .node-version file is found, then the default (linked) version, if any, is used.
The nvs auto on command enables automatic switching as needed whenever the current shell's working directory changes; nvs auto off disables automatic switching in the current shell. (This feature is not supported in Windows Command Prompt.)
A .node-version file must contain a single line with a valid NVS version string, with UTF8 encoding. A version string consists of a complete or partial semantic version number or version label ("lts", "latest", "Argon", etc.), optionally preceded by a remote name, optionally followed by a processor architecture or bitness ("x86", "x64", "32", "64"), separated by slashes. When a partial version matches multiple available versions, the latest version is automatically selected. Examples: "4.6.0", "6/x86", "node/6.7/x64"