dwdiff software package provides diff program that operates word by word, 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 dwdiff
dwdiff is installed in your system.
Make ensure the dwdiff package were installed using the commands given below,
$ sudo dpkg-query -l | grep dwdiff *
You will get with dwdiff package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Utilities |
| Package | dwdiff |
| Version | 2.0.2-1build1 |
| Description | diff program that operates word by word |
| Sub Section | Utils |