Use plug man to install a phone gap plugin iOs

Question

am having a tuff time integrating a bar code plugin into my cordova project using plug man. I went through the plug man documentation and followed what the command which they suggested ie.

Syntax: plugman install --platform --project --plugin [--variable NAME=VALUE]

My Example: plugman install --platform iOS --project ~/Users/gundalasubbareddy/Desktop/BarCodeReader --plugin ~/Users/gundalasubbareddy/Downloads/BarcodeScanner-master

The output what i get is this:

Usage

Install a plugin

$ plugman install --platform  --project  --plugin  [--variable NAME=VALUE]

Parameters:

platform : One of android, ios, blackberry10, wp7 or wp8
project : Path reference to a cordova-generated project of the platform you specify
plugin : One of a path reference to a local copy of a plugin, or a remote https: or git: URL pointing to a cordova plugin (optionally append #branch:subdir) or a plugin ID from http://plugins.cordova.io
variable NAME=VALUE: Some plugins require install-time variables to be defined. These could be things like API keys/tokens or other app-specific variables.

Uninstall a plugin

$ plugman uninstall --platform  --project  --plugin

Parameters: - plugin : The plugin to remove, identified by its id (see the plugin.xml's attribute)

Optional parameters

www : www assets for the plugin will be installed into this directory. Default is to install into the standard www directory for the platform specified
plugins_dir : a copy of the plugin will be stored in this directory. Default is to install into the /plugins folder
searchpath : a directory to look in for a plugin with the provided ID before looking on http://plugins.cordova.io Use the searchpath flag multiple times to specify several directories (searched in order). The search is not recursive and will only look one level down.

Optional flags

--debug|-d : Verbose mode

--help|-h : Displays this message

--version|-v : Displays version

Interacting with the registry

Add a user account

$ plugman adduser

Publish a plugin

$ plugman publish

Unpublish a plugin

$ plugman unpublish @

Search for a plugin

$ plugman search

Display plugin information

$ plugman info plugin

Manage registry configuration

$ plugman config set registry http://localhost:5984/registry/_design/app/_rewrite
$ plugman config get registry

Manage owners

$ plugman owner ls org.apache.cordova.core.file
$ plugman owner add username org.apache.cordova.core.file
$ plugman owner rm username org.apache.cordova.core.file

I don't see the plugin installed into my project. Please help me where am i doing wrong. Thanks santosh