simple-email/node_modules/npm/doc/cli/npm-ls.md

npm-ls(1) -- List installed packages
======================================

## SYNOPSIS

    npm ls [[<@scope>/]<pkg> ...]

    aliases: list, la, ll

## DESCRIPTION

This command will print to stdout all the versions of packages that are
installed, as well as their dependencies, in a tree-structure.

Positional arguments are `name@version-range` identifiers, which will
limit the results to only the paths to the packages named.  Note that
nested packages will *also* show the paths to the specified packages.
For example, running `npm ls promzard` in npm's source tree will show:

    npm@@VERSION@ /path/to/npm
    └─┬ init-package-json@0.0.4
      └── promzard@0.1.5

It will print out extraneous, missing, and invalid packages.

If a project specifies git urls for dependencies these are shown
in parentheses after the name@version to make it easier for users to
recognize potential forks of a project.

The tree shown is the logical dependency tree, based on package
dependencies, not the physical layout of your node_modules folder.

When run as `ll` or `la`, it shows extended information by default.

## CONFIGURATION

### json

* Default: false
* Type: Boolean

Show information in JSON format.

### long

* Default: false
* Type: Boolean

Show extended information.

### parseable

* Default: false
* Type: Boolean

Show parseable output instead of tree view.

### global

* Default: false
* Type: Boolean

List packages in the global install prefix instead of in the current
project.

### depth

* Type: Int

Max display depth of the dependency tree.

### prod / production

* Type: Boolean
* Default: false

Display only the dependency tree for packages in `dependencies`.

### dev / development

* Type: Boolean
* Default: false

Display only the dependency tree for packages in `devDependencies`.

### only

* Type: String

When "dev" or "development", is an alias to `dev`.

When "prod" or "production", is an alias to `production`.

### link

* Type: Boolean
* Default: false

Display only dependencies which are linked

## SEE ALSO

* npm-config(1)
* npm-config(7)
* npmrc(5)
* npm-folders(5)
* npm-install(1)
* npm-link(1)
* npm-prune(1)
* npm-outdated(1)
* npm-update(1)