josm software package provides Editor for OpenStreetMap, 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 josm
josm is installed in your system.
Make ensure the josm package were installed using the commands given below,
$ sudo dpkg-query -l | grep josm *
You will get with josm package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Utilities |
| Package | josm |
| Version | 0.0.svn4878+dfsg1-1 |
| Description | Editor for OpenStreetMap |
| Sub Section | Utils |