DOS API for doggy OS

-- DOS API (Doggy OS API)

DOS = {}

function DOS.Logout()
    shell.run("/disk/os/lock")
end

function DOS.Recovery()
    shell.run("/disk/boot/")
end

function DOS.Uninstall()
    fs.delete("/disk/")
    fs.delete("/recovery/")
    fs.delete("/startup")
    fs.delete("/no-os")
    fs.delete("/surface.lua")
end

function DOS.Kill()
    fs.delete("/startup")

    local newStartupContent = [[
term.clear()
term.setCursorPos(1,1)
print("Device Blocked")
print("Doggy OS API has been used to block this device")
print("---------------------------------------------------")
read()
os.reboot()
]]

    local file = fs.open("/startup", "w")
    file.write(newStartupContent)
    file.close()

    os.shutdown()
end