dpkg software package provides Debian package management system, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install dpkg
dpkg is installed in your system.
Make ensure the dpkg package were installed using the commands given below,
$ sudo dpkg-query -l | grep dpkg *
You will get with dpkg package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Administration Utilities |
| Package | dpkg |
| Version | 1.16.18 |
| Description | Debian package management system |
| Sub Section | Admin |