$ uname -or
$ uname -a
cat /proc/version
$ cat /etc/os-release [Debian, Ubuntu and Mint] $ cat /etc/os-release [RHEL/CentOS/Fedora and Rocky Linux/AlmaLinux] $ cat /etc/gentoo-release [Gentoo Linux] $ cat /etc/os-release [Alpine Linux] $ cat /etc/os-release [Arch Linux] $ cat /etc/SuSE-release [OpenSUSE]
$ lsb_release -a
$ hostnamectl
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