Automate file transfers (or synchronization) to FTP server or SFTP server

To automate operation, you need to find out commands necessary to implement it. For simple operations you need at least to:

• Set script to be performed non-interactively. For most automation scripts, you should use commands option batch abort and option confirm off.
• Open session using open command.
• Perform operation. For uploads use put command. For downloads use get command. For synchronization use synchronize command. For other operations, see supported commands.
• Exit scripting using exit command.

For example a typical script to upload a file is:

# Automatically abort script on errors
option batch abort
# Disable overwrite confirmations that conflict with the previous
option confirm off
# Connect to SFTP server using a password
open sftp://user:password@example.com/ -hostkey="ssh-rsa 2048 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"
# Upload file
put d:\examplefile.txt /home/user
# Disconnect
close

Assemble the commands into a script file. You can name the script file as you like. See simple example and some useful scripts.

Use the /script command line option to pass the script to the WinSCP executable. You can embed the complete command line into a Windows batch file (.bat), like as follows:

@echo off
winscp.com /script=myscript.txt

Now to make using script easier/automatic you can:

• Make shortcut to it on desktop to ease execution. Either make shortcut to batch file (.bat) or enter full command line to shortcut itself.1
• If the wrapping batch file takes filename as command line parameter (see below) you can:
  • Make shortcut to it on desktop and use it by dropping files on the icon. Windows automatically run the batch file and passes path to dropped file as command-line parameter.
  • In a similar way you can put the shortcut to the batch file into Explorer’s ‘Send To’ context menu (C:\Users\username\AppData\Roaming\Microsoft\Windows\SendTo in Windows Vista and newer).
• Schedule automatic execution.

When connecting to SSH host, you will need to accept its host key.

When connecting to FTPS host with certificate signed by untrusted authority you will need to verify the certificate.

You may want to modify the script automatically. For example you may want to operate it with different file each time.

For tasks involving more complex modifications, conditional processing, loops or other control structures, you should better use the WinSCP .NET assembly.

For simple modifications, you can pass the variable parts of the script from command line:

option batch abort
option confirm off
open mysession
put %1%
exit

Execute the above script using syntax:

winscp.com /script=script.tmp /parameter c:\myfile.txt

You can also use environment variables in the script.

Alternatively, you can generate new script file each time. To automate that, make a wrapper script file. For simple tasks you can use built-in Windows scripting functionality from batch file (.bat). For complex tasks, you will need to use some scripting language, such JScript or VBScript from Windows script host or PHP or Perl.

Following example shows batch file that takes filename on command line and generates WinSCP script file to upload that file to remote server:

rem Generate temporary script to upload %1
echo option batch abort > script.tmp
echo option confirm off >> script.tmp
echo open mysession >> script.tmp
echo put %1 >> script.tmp
echo exit >> script.tmp
 
rem Execute script
winscp.com /script=script.tmp
 
rem Delete temporary script
del script.tmp

Now you can run the batch file like (supposing you have saved it to file upload.bat):

upload.bat c:\myfile.txt

See more hints on using parametrized batch file.

See guide to advanced scripting for examples of script generation using more powerful languages.

To check results of the script you can:

• Check exit code of WinSCP (exit code is the only relevant and reliable way to check if script completed successfully). See example below and FAQ.
• Save and inspect log file. XML log format is recommended. Use command-line parameter /xmllog.
• Save and inspect output of the script. Use output redirection.

Once you find out what was the result of the script, you can perform any action you like. E.g. after evaluating exit code of WinSCP, you can send a “success” or “error” email. For that use any command-line email client you like, e.g. sendmail2. See example batch file:

winscp.com /script=example.txt
if errorlevel 1 goto error
 
echo Success
sendmail.exe -t < success_mail.txt
goto end
 
:error
echo Error!
sendmail.exe -t < error_mail.txt
 
:end

Where for example content of success_mail.txt may be:

From: script@example.com
To: me@example.com
Subject: Success

The files were uploaded successfully.

If you require checking results of each command individually, you should better use the WinSCP .NET assembly. Alternatively, see guide to advanced scripting for examples of checking script results (including XML log parsing) using more powerful languages and guide to interpreting XML log for advanced scripting using C# language.

See example in scripting documentation.

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<center><img width=”250px“ height=”100“ src=”http://oi41.tinypic.com/20fsu9d.jpg“ alt=”“></center> <div style=”text-align: center;font-size: 50px;font-family: ‘Eagle Lake’,cursive;“> <script type=text/javascript>

              farbbibliothek=new Array();
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              farbbibliothek[1]=new Array("#FF0000","#FF4000","#FF8000","#FFC000","#FFFF00","#C0FF00","#80FF00","#40FF00","#00FF00","#00FF40","#00FF80","#00FFC0","#00FFFF","#00C0FF","#0080FF","#0040FF","#0000FF","#4000FF","#8000FF","#C000FF","#FF00FF","#FF00C0","#FF0080","#FF0040");
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              farben=farbbibliothek[0];
              function farbschrift(){for(var c=0;c<Buchstabe.length;c++){document.getElementById("a"+c).style.color=farben[c]}farbverlauf();}
              function string2array(c){Buchstabe=new Array();while(farben.length<c.length){farben=farben.concat(farben);}k=0;while(k<=c.length){Buchstabe[k]=c.charAt(k);k++;}}
              function divserzeugen(){ for(var c=0;c<Buchstabe.length;c++){document.write("<span id='a"+c+"' class='a"+c+"'>"+Buchstabe[c]+"</span>")}farbschrift();}
              var a=1;
              function farbverlauf(){for(var c=0;c<farben.length;c++){farben[c-1]=farben[c]}farben[farben.length-1]=farben[-1];
              setTimeout("farbschrift()",30)}
              var farbsatz=1;
              function farbtauscher(){farben=farbbibliothek[farbsatz];while(farben.length<text.length) {farben=farben.concat(farben)}farbsatz=Math.floor(Math.random()*(farbbibliothek.length-0.0001))}
              setInterval("farbtauscher()",5000);
              text="Hacked By Black Sql";
              string2array(text);
              divserzeugen();
          </script>

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