set-distro

#!/bin/bash
# Determine the distro.
# That part may considerably change in the future.

if grep -iqE 'Ubuntu|Linux Mint|Backtrack 5' /etc/issue; then
    DISTRO=ubuntu
elif grep -iq "Arch Linux" /etc/issue; then
    DISTRO=archlinux
elif grep -iq "CentOS" /etc/issue; then
    DISTRO=centos
elif grep -iq Fedora /etc/issue; then
    DISTRO=fedora
    echo "You are running Fedora, the work is in progress for you distro but not"
    echo "sufficient. If you would like to help to port the installer to fedora,"
    echo "please visit https://github.com/Bumblebee-Project/Bumblebee/issues"
    exit 3
elif grep -iq OpenSUSE /etc/issue; then
    DISTRO=opensuse
    echo "You are running openSUSE, the work is in progress for you distro but not"
    echo "sufficient. If you would like to help to port the installer to openSUSE,"
    echo "please visit https://github.com/Bumblebee-Project/Bumblebee/issues"
    exit 3
elif grep -iq Debian /etc/issue; then
    DISTRO=debian
    echo "You are running Debian Linux, please see the debumblebee project for support:"
    echo
    echo "https://github.com/z0rc/debumblebee"
    echo
    $UNATTENDED || read
    exit 3
elif grep -iq "Gentoo" /etc/issue; then
    DISTRO=gentoo
    echo "You are running Gentoo Linux, please see the ebuild here for support:"
    echo
    echo "https://github.com/iegor/rainyday/tree/master/x11-misc/bumblebee"
    echo
    $UNATTENDED || read
    exit 3
else
    echo
    echo "Your Distribution could not be determined or is not supported."
    echo "Please report a bug at:"
    echo
    echo "https://github.com/Bumblebee-Project/Bumblebee/issues"
    exit 3
fi

echo "${DISTRO}-based distribution detected"