acpitool-dbg software package provides command line ACPI client (debug), 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 acpitool-dbg
acpitool-dbg is installed in your system.
Make ensure the acpitool-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep acpitool-dbg *
You will get with acpitool-dbg package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Development |
| Package | acpitool-dbg |
| Version | 0.5.1-3 |
| Description | command line ACPI client (debug) |
| Sub Section | devel |