ubuntu version
ubuntu is released semi-annually.
Of these, one of the four releases has been released as a long-term support version.
This is "LTS".
Each version of ubuntu has a common name.
ubuntu 16.04 LTS (Xenial Xerus)
Xenial Xerus (Zenial Xerus)
Hospitality, friendly
Aragejirisu (Xerus rutilus)
Ground squirrel is a fellow squirrel
ubutnu 18.04 LTS (Bionic Beaver)
Bionic Beaver
Biotechnology, cyborg
Beaver
ubuntu 20.04 LTS (Focal Fossa)
Focal Fossa
Of focus
Fossa (living in Madagascar)
os-release
/etc/os-release
You can get information about ubuntu at.
$ cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal