add-apt-repository

root@gitserver:~# sudo apt-get install python-software-properties
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 openfire : PreDepends: sun-java5-jre but it is not installable or
                        sun-java6-jre but it is not installable
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
root@gitserver:~#