The Ultimate Guide to File Transfer Using Putty Serial Commands

I'd like to send the text content of a file over the serial port, over PuTTY. I know that extensions exists such as Xmodem and Zmodem, but they all use some checksum protocols to confirm that a file is sent over the port.

However, my requirements are more simple. I'd like to simply send a bunch of text (in a file) over the serial port in Windows (under Linux this would be must more simple), but my preferred terminal program is PuTTY. Is this possible? Is there another terminal program that has this type of feature built it?

How To Transfer File Using Putty Serial Commands

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So using that you could either add delays or implement flow control (which is set on a different tab). Another alternative to using flow control is to implement one of the fairly ancient protocols like XMODEM which are fairly simple and don't consume a lot of code space, if you have a little over 1k of RAM available then I've used this code and it works. ExtraPuTTY is a fork of PuTTY that adds XMODEM and a few other file transfer protocols.

A lot of Internet protocols are composed of commands and responses in plain text. For example, SMTP (the protocol used to transfer e-mail), NNTP (the protocol used to transfer Usenet news), and HTTP (the protocol used to serve Web pages) all consist of commands in readable plain text.

A serial line provides no well defined means for one end of the connection to notify the other that the connection is finished. Therefore, PuTTY in serial mode will remain connected until you close the window using the close button.

This feature is only available in SSH protocol version 2 (since the version 1 protocol assumes you will always want to run a shell). It is not available in the file transfer tools PSCP and PSFTP. It is available in PuTTY itself, although it is unlikely to be very useful in any tool other than Plink. Also, -nc uses the same server functionality as port forwarding, so it will not work if your server administrator has disabled port forwarding.

I have a sequence of commands which I use to update the firmware on my Linux machine. When I connect to the machine using a serial connection I can type the commands one-by-one and they work fine. I would like to automate this procedure by running the commands in a batch file.

When I use command redirection using plink instead of putty, I just get an empty terminal. Running the following command:start plink.exe -load i5IS-COM4

Though as your "bat" file is actually not a batch file (that would produce the commands for the device), but a text file that directly contains the commands for the device, you want to use the contents of the file as an input, rather than output of its execution:

You need a terminal application like minicom. Then you connect the two computers, start minicom on one side, connect to the other side (the one where you can login) and use the sz command to send the file. Minicom will automatically detect the file transfer. Note that you might need to install the sz command on the login machine, how that is done is dependent on your distribution.

I came across serio, a very simple, clever and open source Python script (available here: ). All this tiny gem does is to echo every single byte from the source file onto the target's shell using echo and redirecting the output to a destination file.

During my daily working, I do the development on Windows OS; besides, we have aDebian server for running different jobs automatically, file storage, etc.Sometimes, we also need to transfer files from Windows OS to Linux OS, orreverse; in this case, we use Putty to realize the transfering. Today, I willtalk about how to use Putty for transfer files with the following points:

PuTTY is a free open source (MIT-licensed) Win32 Telnet console, network file transfer application, and SSH client. Various protocols like Telnet, SCP, and SSH are supported by PuTTY. It has the ability to connect to a serial port. See the How to Install PuTTY SSH for Windows knowledge base article for download and installation instructions.

Note: Verify that you have the pscp file included in your putty.exe folder, as this is responsible for uploading files. You should set your server upload permissions before you upload your files onto your server. Below is a list of PuTTY commands:

Switches can be accessed and configured through the Command Line Interface (CLI). Accessing the CLI allows commands to be entered in a terminal based window. For a user who has had more experience with terminal commands, this may be an easier alternative to navigating the web configuration utility. Certain tasks such as recovering an administrator password can only be performed through the CLI. In order to access the CLI you must use an SSH client. PuTTY is a standard SSH client and can be found here. This document assumes you are connecting to the switch using PuTTY.

I'm using Putty or Picocom to talk directly to a Mobile Modem using AT commands, while doing some experiments that require up/downloading some files on the mobile module's EFS partition. The protocol used to do this is Xmodem and it seem that most terminal utilities no longer include/support this. Picocom does as a 3rd party dependence:

They will expect the file transfer protocol to happen on their standard input/output: picocom and similar serial-port-oriented terminal emulators will automatically handle the necessary redirections, but if you are planning to use them "raw" on a command line, remember that you'll need to redirect their input and output to the appropriate serial port device, or else they'll try to talk their file transfer protocol with you instead of the serial-connected device.

When the transfer is complete, the terminal emulator will drop out of the file transfer mode and the router will put up its normal prompt again. At this point, we highly recommend checking the new IOS image to make sure that it copied successfully. You can verify the file size as follows:

If you are using Amazon S3 for your server's storage, and if your client contains an option to use multiple connections for a single transfer, make sure to disable the option. Otherwise, large file uploads can fail in unpredictable ways. Note that if you are using Amazon EFS as your storage backend, EFS does support multiple connections for a single transfer.

If the endpoint type for your Transfer Family server is VPC, identifying the endpoint to use for transferring files is not straightforward. In this case, use the following procedure to find your Amazon VPC endpoint.

Some SFTP file transfer clients can attempt to change the attributes of remote files, including timestamp and permissions, using commands, such as SETSTAT when uploading the file. However, these commands are not compatible with object storage systems, such as Amazon S3. Due to this incompatibility, file uploads from these clients can result in errors even when the file is otherwise successfully uploaded.

Commands that attempt to change attributes of remote files, including timestamps, are not compatible with object storage systems such as Amazon S3. Therefore, if you are using Amazon S3 for storage, be sure to disable WinSCP timestamp settings (or use the SetStatOption as described in Avoid setstat errors) before you perform file transfers. To do so, in the WinSCP Transfer settings dialog box, disable the Set permissions upload option and the Preserve timestamp common option.

If you interrupt a file transfer in progress, AWS Transfer Family might write a partial object in your Amazon S3 bucket. If you interrupt an upload, check that the file size in the Amazon S3 bucket matches the file size of the source object before continuing.

As a part of your object's metadata you see a key called x-amz-meta-user-agent whose value is AWSTransfer and x-amz-meta-user-agent-id whose value is username@server-id. The username is the Transfer Family user who uploaded the file and server-id is the server used for the upload. This information can be accessed using the HeadObject operation on the S3 object inside your Lambda function.

When an object is uploaded to your S3 bucket using Transfer Family, RoleSessionName is contained in the Requester field in the S3 event notification structure as [AWS:Role Unique Identifier]/username.sessionid@server-id. For example, the following are the contents for a sample Requester field from an S3 access log for a file that was copied to the S3 bucket.

Thanks a lot. I like the simplicity of this. However after trying it to command a device I had trouble using the serial port with another program, e.g. Reaterm. Had to power cycle to clear. How do I inspect or clear the serial port status to make sure it is in pristine power on condition. (I may try your ComPrinter as the other program to see if it also hangs.) Inspecting and clearing a serial port without having to cycle power would be good to be able to do.

we are a team of 4 engineers from Egypt working on a Flight Simulation Rig that rotates 360 degrees on 2 axis. We managed to build the simulation Rig and test it with a game (HAWX). it performs pretty well but after a few min of playing a time shift between the simulation and the rig appears.So we decided that we need feedback from the game it self with the plane exact angle of rotation on both x an y axis so we can compare it with the cabin orientation using the gyro on it , and the best way to do that is build a simple flight sim game using Cry engine and take the needed readings from it.So here is the question :Is it possible to send the plane angles of rotation data over serial bus in real time to our micro controller ?And if it is , can some one point us towards a similar project or a guide for how to do it.We really appreciate your feed back, it would really help us a lot. and best regards 2ff7e9595c