Ottenere La Versione Del Sistema Operativo

Per sapere che versione di linux stiamo usando abbiamo vari metodi:

 $ cat /etc/issue
 Linux Mint 19.1 Tessa \n \l

oppure

 $ hostnamectl
   Static hostname: max-desktop
         Icon name: computer-desktop
           Chassis: desktop
        Machine ID: 82929df7ee394b73b81252fe3b4e5020
           Boot ID: 707fb447e5034e758774fe3a0144389e
  Operating System: Linux Mint 19.1
            Kernel: Linux 4.15.0-20-generic
      Architecture: x86-64

oppure

 $ cat /etc/linuxmint/info
 RELEASE=19.1
 CODENAME=tessa
 EDITION="Cinnamon"
 DESCRIPTION="Linux Mint 19.1 Tessa"
 DESKTOP=Gnome
 TOOLKIT=GTK
 NEW_FEATURES_URL=https://www.linuxmint.com/rel_tessa_cinnamon_whatsnew.php
 RELEASE_NOTES_URL=https://www.linuxmint.com/rel_tessa_cinnamon.php
 USER_GUIDE_URL=https://www.linuxmint.com/documentation.php
 GRUB_TITLE=Linux Mint 19.1 Cinnamon

oppure

 $ lsb_release -a
 No LSB modules are available.
 Distributor ID:    LinuxMint
 Description:    Linux Mint 19.2 Tina
 Release:    19.2
 Codename:    tina

oppure

 $ cat /etc/os-release
 NAME="Linux Mint"
 VERSION="19.1 (Tessa)"
 ID=linuxmint
 ID_LIKE=ubuntu
 PRETTY_NAME="Linux Mint 19.1"
 VERSION_ID="19.1"
 HOME_URL="https://www.linuxmint.com/"
 SUPPORT_URL="https://forums.ubuntu.com/"
 BUG_REPORT_URL="http://linuxmint-troubleshooting-guide.readthedocs.io/en/latest/"
 PRIVACY_POLICY_URL="https://www.linuxmint.com/"
 VERSION_CODENAME=tessa
 UBUNTU_CODENAME=bionic