npm software package provides package manager for Node.js, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install npm
npm is installed in your system.
Make ensure the npm package were installed using the commands given below,
$ sudo dpkg-query -l | grep npm *
You will get with npm package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Web Software |
| Package | npm |
| Version | 1.3.10~dfsg-1 |
| Description | package manager for Node.js |
| Sub Section | Web |