itcl3-doc software package provides [incr Tcl] OOP extension for Tcl - manual pages, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install itcl3-doc
itcl3-doc is installed in your system.
Make ensure the itcl3-doc package were installed using the commands given below,
$ sudo dpkg-query -l | grep itcl3-doc *
You will get with itcl3-doc package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Development |
| Package | itcl3-doc |
| Version | 3.4~b1-3 |
| Description | [incr Tcl] OOP extension for Tcl - manual pages |
| Sub Section | devel |