I forgot you have to give it write permissions (minified)

halyde/apps/download.lua

@@ -1,57 +1 @@
-local url = ...
-
-local component = import("component")
-local fs = import("filesystem")
-
-if not component.list("internet")() then
-  print("\27[91mThis program requires an internet card to run.")
-  return
-end
-
-if not url then
-  print("Please enter a URL to download from.")
-  shell.run("help download")
-  return
-end
-
-if url:sub(-1, -1) == "/" then
-  url = url:sub(1, -2)
-end
-
-local internet = component.internet
-
-local request, data, tmpdata = nil, "", nil
-local status, errorMessage = pcall(function()
-  request = internet.request(url)
-  request:finishConnect()
-end)
-if not status then
-  print("\27[91mDownload failed: " .. errorMessage)
-end
-local responseCode = request:response()
-if responseCode and responseCode ~= 200 then
-  print("\27[91mDownload failed: " .. tostring(responseCode))
-end
-repeat
-  tmpdata = request.read(math.huge)
-  data = data .. (tmpdata or "")
-until not tmpdata
-local saveLocation
-local saveLocationOK = false
-repeat
-  saveLocation = read(nil, "File save location: ", fs.concat(shell.workingDirectory, url:match("/([^/]+)$")))
-  if fs.isDirectory(saveLocation) then
-    print("\27[91mThe specified location is a directory.")
-  elseif fs.exists(saveLocation) then
-    local answer = read(nil, "\27[91mThere is already a file at the specified directory. Overwrite it? [Y/n]")
-    if answer:lower() ~= "n" then
-      saveLocationOK = true
-    end
-  else
-    saveLocationOK = true
-  end
-until saveLocationOK
-local handle = fs.open(saveLocation, "w")
-handle:write(data)
-handle:close()
-print("File downloaded successfully.")
+Error: no such file. (``)