要查询安装在电脑的 Ubuntu 版本有几种方法，以下是查询的方法。
1. /etc/lsb-release 档案：
# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION=”Ubuntu Xenial Xerus
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION=”Ubuntu Xenial Xerus
2. lsb_release 指令：
# lsb_release -da
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu Xenial Xerus (development branch)
Release: 16.04
Codename: xenial
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu Xenial Xerus (development branch)
Release: 16.04
Codename: xenial
3. /etc/os-release 档案
# cat /etc/os-release
NAME=”Ubuntu”
VERSION=”16.04 (Xenial Xerus)”
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME=”Ubuntu 16.04″
VERSION_ID=”16.04″
HOME_URL=”http://www.ubuntu.com/”
SUPPORT_URL=”http://help.ubuntu.com/”
BUG_REPORT_URL=”http://bugs.launchpad.net/ubuntu/”
UBUNTU_CODENAME=xenial
NAME=”Ubuntu”
VERSION=”16.04 (Xenial Xerus)”
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME=”Ubuntu 16.04″
VERSION_ID=”16.04″
HOME_URL=”http://www.ubuntu.com/”
SUPPORT_URL=”http://help.ubuntu.com/”
BUG_REPORT_URL=”http://bugs.launchpad.net/ubuntu/”
UBUNTU_CODENAME=xenial
4. /etc/issue 档案
可以在 /etc/issue 看到 Ubuntu 版本，但只会有版本名称：
# cat /etc/issue
Ubuntu Xenial Xerus
Ubuntu Xenial Xerus