#!/bin/bash

DISTNAME=unknown
DISTVER=
if [ -f /etc/solus-release ]; then
  DISTNAME=solus
elif [ -f /etc/lsb-release ]; then
  . /etc/lsb-release
  DISTNAME=$(echo ${DISTRIB_ID} | awk '{print tolower($0)}')
  DISTVER=${DISTRIB_RELEASE}
  if [ "$DISTNAME" != "ubuntu" ]; then
    if [ "$DISTNAME" = "linuxmint" ]; then
      if [ "$DISTVER" = "19" ] || [ "$DISTVER" = "19.1" ]; then
        DISTNAME=ubuntu
        DISTVER=18.04
      fi
    elif [ "$DISTNAME" = "elementary" ]; then
      if [ "$DISTVER" = "5.0" ]; then
        DISTNAME=ubuntu
        DISTVER=18.04
      fi
    else
      DISTNAME=unknown
      DISTVER=
    fi
  fi
elif [ -f /etc/debian_version ]; then
  DISTNAME=debian
  DISTVER=$(head -1 /etc/debian_version|awk -F. '{print $1}')
elif [ -f /etc/os-release ]; then
  . /etc/os-release
  if [ "$ID" == "arch" ]; then
    DISTNAME=arch
  elif [ "$ID" == "fedora" ]; then
    if [ "$VERSION_ID" == "29" ]; then
      DISTNAME=fedora
      DISTVER=29
    fi
  fi
fi

echo ${DISTNAME}${DISTVER}