How to check the system version in linux

How to check the system version on Linux

General method to check:

1. uname -a (Linux to view the current operating system kernel information)

Linux localhost.localdomain 2.4.20-8 #1 Thu Mar 13 17:54:28 EST 2003 i686 athlon i386 GNU/Linux

2. cat /proc/version (Linux to view the current operating system version information)

Linux version 2.4.20-8 (bhcompile@porky.devel.redhat.com)
(gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #1 Thu Mar 13 17:54:28 EST 2003

3 , cat /etc/issue

Red Hat Enterprise Linux AS release 4 (Nahant Update 8)
Kernel /r on an /m

RedHat series view:

##1, cat /etc/redhat-release

Red Hat Enterprise Linux AS release 4 (Nahant Update 8)

2, lsb_release -a

LSB Version: :core-3.0-ia32:core-3.0-noarch:graphics-3.0-ia32:graphics-3.0-noarch
Distributor ID: RedHatEnterpriseAS
Description: Red Hat Enterprise Linux AS release 4 (Nahant Update 8)
Release: 4
Codename: NahantUpdate8

Debian series view:

1, cat /etc/debian_version

9.0

2, cat /etc/os- release

PRETTY_NAME="Debian GNU/Linux 9 (stretch)"
NAME="Debian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

3, hostnamectl

   Static hostname: debian
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 6866ec1d654b4a2ea52d591dc0146d82
           Boot ID: 51bfbc1e197b4d378e95073da0df0288
    Virtualization: xen
  Operating System: Debian GNU/Linux 9 (stretch)
            Kernel: Linux 4.9.0-1-amd64
      Architecture: x86-64

Recommended:

linux system tutorial

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