client

-- Open Rednet on the same side as the server
rednet.open("top")

-- Prompt user to enter the server ID
print("Enter Server ID:")
local serverId = tonumber(read())

-- Prompt user to enter the file to send
print("Enter File Name to Send:")
local fileName = read()

-- Read the file content to send
local fileContent = ""
local file = fs.open(fileName, "r")
if file then
  fileContent = file.readAll()
  file.close()

  -- Send the file content to the server using the specified ID
  local success = rednet.send(serverId, fileContent, "file_transfer")
  if success then
    print("File sent to the server")
  else
    print("Failed to send the file. Check server ID or Rednet connection.")
  end
else
  print("File not found or could not be read.")
end