hgsubversion software package provides Subversion client as Mercurial extension, 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 hgsubversion
hgsubversion is installed in your system.
Make ensure the hgsubversion package were installed using the commands given below,
$ sudo dpkg-query -l | grep hgsubversion *
You will get with hgsubversion package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Version Control Systems |
| Package | hgsubversion |
| Version | 1.3-1 |
| Description | Subversion client as Mercurial extension |
| Sub Section | vcs |