def METHOD_NAME():
    osrelease_file = open("/etc/os-release", "rt")
    lines = osrelease_file.readlines()
    osrelease_file.close()
    osType = "unknown"
    for line in lines:
        if (line.find('PRETTY_NAME') == 0):
            lineParts = line.split('=')
            osParts = lineParts[1].split('"')
            osType = osParts[1]
    return osType