caca-utils software package provides text mode graphics utilities, 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 caca-utils
caca-utils is installed in your system.
Make ensure the caca-utils package were installed using the commands given below,
$ sudo dpkg-query -l | grep caca-utils *
You will get with caca-utils package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Utilities |
| Package | caca-utils |
| Version | 0.99.beta18-1 |
| Description | text mode graphics utilities |
| Sub Section | Utils |