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Disconnect Remote Desktop from command line



How to kill remote desktop sessions from the command line?

How to close RDC sessions from the command line?

One solution is to use batch file scripting or use PowerShell.

For old timers batch file might be the preferred solution because you don't need to install anything, it  comes in handy with the native command prompt.

Of course, PowerShell is also one of the best solutions; provided the environment is PowerShell ready.

The method used below utilizes batch file or the command prompt, just like the good old DOS environment of yesterday.

Command below can be run directly from the command prompt.

To use batch file scripting open notepad and save the file with ".bat"  file extension. Once saved as a batch file, the script is ready for automation with the help of Task Scheduler.

Here's the command:

for /f "tokens=2,5" %a in ('netstat -ano ^| find "3389"') do echo %a & tskill %b /v

For folks who just started to embark in batch file world,  a brief of explanation is provided below on how the command works.

Let's start with the "netstat -ano" output. The netstat command ouput has 5 columns like the example  below.

Proto  Local Address          Foreign Address        State           PID
TCP    0.0.0.0:210             0.0.0.0:0              LISTENING       2088
TCP    0.0.0.0:80              0.0.0.0:0              LISTENING       4

As mentioned, this is not a detailed one but sort of an overview explanation. Search the web for more thorough and detailed documentation if you need to delve in further.

tokens=2,5
- this refers to column 2 and 5 or the Local Address and PID.
- basically extracting or cutting the string
- if you are familiar with Linux environment or Shell scripting, Awk method is suitable for this kind of scenario (Awk example: http://quickbytesstuff.blogspot.sg/2016/05/basic-awk-usage-tutorial.html)

netstat -ano ^| find "3389"
- the command to find the string "3389" default port for Remote Desktop
- the ^ "caret" before the pipe "|" command is important
- the output of netstat -ano is the input for  "find" command
- type netstat /?  and find /? from the command prompt for detailed help examples

echo %a & tskill %b /v
- echo %a will display the Local Address
- echo %b will display the PID
- %a handles the value of token (2)
- %b handles the value of token (5)

& tskill %b /v
- the ampersand symbol indicates a new command to be executed
- tskill pid /v will close or disconnect the port 3389 and /v displays the information about the action performed by the command
- type tskill /? from the command prompt for detailed help examples
    
To dig further on how "for loop" works type the help command, For /?

A good link that discusses batch file for loops.
http://www.computing.net/howtos/show/batch-files-tokens-and-delimiters-for-loops/473.html

If you need to kill or close all UDP and TCP sessions, just tweak the command and it will do the job.

The command discussed above can be used also to kill or stop a process.

Open WordPad and try the command below.

Example:
for /f "tokens=4" %a in ('query process ^| find "wordpad"') do echo %a



for /f "tokens=4" %a in ('query process ^| find "wordpad"') do taskkill /pid %a

If the command has no errors a message a success is message is displayed.
Ex: SUCCESS: Sent termination signal to the process with PID pid_number

For more batch file scripts on this blog, use the search box or click the label "batch file" located below.


Cheers..till next time. Hope it helps.

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Catholic Rosary Guide  for Android:

https://play.google.com/store/apps/details?id=com.myrosaryapp

http://quickbytesstuff.blogspot.sg/2014/09/how-to-recite-rosary.html

Divine Mercy Chaplet Guide (A Powerful prayer):

https://play.google.com/store/apps/details?id=com.dmercyapp

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