How to Detect Platform and Distro

detect-platform.sh

# Detect platform in bash
# https://stackoverflow.com/a/3466183/459745

case $(uname -s) in
    Linux*) platform=Linux;;
    Darwin*) platform=Mac;;
    CYGWIN*) platform=Cygwin;;
    MINGW*) platform=MinGw;;
    *) platform=Unknown;;
esac

echo Platform is $platform

get-distro.sh

#!/bin/sh
# Determine the distro and return a lower-case string
# Here are some known OSes:
# - On Fedora: fedora
# - On FreeBSD or GhostBSD: freebsd
# - On Linux Mint and LMDE: linuxmint
# - On Mac: darwin
# - On PopOS: pop
# - On Raspbian: raspbian
# - On Ubuntu: ubuntu
get_distro() {
    if [ -f /etc/os-release ]
    then
        # On Linux systems
        sed -n '/^ID=/s/ID=//p' /etc/os-release
    else
        # On systems other than Linux (e.g. Mac or FreeBSD)
        uname
    fi | tr '[:upper:]' '[:lower:]'
}