lsb_release -a

root@kali:~# lsb_release -a
No LSB modules are available.
Distributor ID: Kali
Description:    Kali GNU/Linux Rolling
Release:    kali-rolling
Codename:   kali-rolling

cat /etc/issue

root@kali:~# cat /etc/issue
Kali GNU/Linux Rolling \n \l