----------lsb_release -a----------
Distributor ID:	Ubuntu
Description:	Ubuntu 12.04.3 LTS
Release:	12.04
Codename:	precise
----------/etc/lsb-release----------
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.3 LTS"
----------/etc/os-release----------
NAME="Ubuntu"
VERSION="12.04.3 LTS, Precise Pangolin"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu precise (12.04.3 LTS)"
VERSION_ID="12.04"
----------/etc/debian_version----------
wheezy/sid