Is it possible to use a batch file to establish a telnet session send a command and have the output written to a file

Question

I run the following batch file to establish a telnet session to a device and create a file that will hold information pulled from the device     CD  COLOR 0E CLS  echo off ECHO This will start the connection to the Heraeus QuicK-Lab DATACAST ENtouch   pause telnet 172 17 0 16 4224 -f C  LogFiles Datacast log   After the telnet session is established I type in a command to dump data to Datacast log as specified in the last line of code   I am hoping to include the command   M3 1 999  for example  in the batch file somehow but I can find no similar examples     Is it possible to do this with a batch file

User · Answer

I figured out a way to telnet to a server and change a file permission. Then FTP the file back to your computer and open it. Hopefully this will answer your questions and also help FTP.

The filepath variable is setup so you always login and cd to the same directory. You can change it to a prompt so the user can enter it manually.

:: This will telnet to the server, change the permissions, 
:: download the file, and then open it from your PC. 

:: Add your username, password, servername, and file path to the file.
:: I have not tested the server name with an IP address.

:: Note - telnetcmd.dat and ftpcmd.dat are temp files used to hold commands

@echo off
SET username=
SET password=
SET servername=
SET filepath=

set /p id="Enter the file name: " %=%

echo user %username%> telnetcmd.dat
echo %password%>> telnetcmd.dat
echo cd %filepath%>> telnetcmd.dat
echo SITE chmod 777 %id%>> telnetcmd.dat
echo exit>> telnetcmd.dat
telnet %servername% < telnetcmd.dat


echo user %username%> ftpcmd.dat
echo %password%>> ftpcmd.dat
echo cd %filepath%>> ftpcmd.dat
echo get %id%>> ftpcmd.dat
echo quit>> ftpcmd.dat

ftp -n -s:ftpcmd.dat %servername%
del ftpcmd.dat
del telnetcmd.dat

User · Answer

Maybe something like this    Create a batch to connect to telnet and run a script to issue commands     source  Batch File  named Script bat             Open a Telnet window    start telnet exe 192 168 1 1       Run the script      cscript SendKeys vbs    Command File  named SendKeys vbs     set OBJECT WScript CreateObject  WScript Shell   WScript sleep 50  OBJECT SendKeys  mylogin ENTER    WScript sleep 50  OBJECT SendKeys  mypassword ENTER   WScript sleep 50  OBJECT SendKeys   cd  var tmp ENTER    WScript sleep 50  OBJECT SendKeys   rm log web activity ENTER    WScript sleep 50  OBJECT SendKeys   ln -s  dev null log web activity ENTER    WScript sleep 50  OBJECT SendKeys  exit ENTER    WScript sleep 50  OBJECT SendKeys

User · Answer

The microsoft telnet exe is not scriptable without using another script  which needs keyboard focus   as shown in another answer to this question  but there is a free   Telnet Scripting Tool v 1 0 by Albert Yale   that you can google for and which is both scriptable and loggable and can be launched from a batch file without needing keyboard focus   The problem with telnet exe and a second script when keyboard focus is being used is that if someone is using the computer at the time the script runs  then it is highly likely that the script will fail due to mouse clicks and keyboard use at that moment in time

User · Answer

First of all  a caveat  Why do you want to use telnet  telnet is an old protocol  unsafe and impractical for remote access  It s been  almost totally replaced by ssh   To answer your questions  it depends  It depends on the telnet client you use  If you use microsoft telnet  you can t  Microsoft telnet does not have any mean to send commands from a batch file or a command line

User · Answer

This is old  but someone else may stumble on it as I did   When you connect to the DataCast  you are talking to a daemon that can access the database   It was intended that a customer would write some code to access the database and store the results somewhere   It just happens that telnet works to access data manually  netcat should also work  ssh obviously will not

[batch-file] Is it possible to use a batch file to establish a telnet session, send a command and have the output written to a file?

Examples related to batch-file

Examples related to telnet