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library_session_executecommand 2012-04-03 library_session_executecommand 2022-06-16 (current)
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====== Session.ExecuteCommand Method ====== ====== Session.ExecuteCommand Method ======
Executes command on the remote server. Executes command on the remote server.
- 
-&beta_feature 
===== Syntax ===== ===== Syntax =====
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<code vbnet *> <code vbnet *>
-Public Function ExecuteCommand(ByVal command As String) As CommandExecutionResult+Public Function ExecuteCommand(command As String) As CommandExecutionResult
</code> </code>
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==== Return Value ==== ==== Return Value ====
-''[[library_commandexecutionresult|CommandExecutionResult]]'' with command output.+''[[library_commandexecutionresult|CommandExecutionResult]]'' with command output. See also [[library_session#results|Capturing results of operations]].
===== Exceptions ===== ===== Exceptions =====
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| InvalidOperationException | Session is not opened. | | InvalidOperationException | Session is not opened. |
| [[library_sessionlocalexception|SessionLocalException]] | Error communicating with ''[[executables#winscp.com|winscp.com]]''. \\ See the exception documentation for details. | | [[library_sessionlocalexception|SessionLocalException]] | Error communicating with ''[[executables#winscp.com|winscp.com]]''. \\ See the exception documentation for details. |
-| [[library_sessionremoteexception|SessionRemoteException]] | Session has failed. \\ Command has failed. \\ See the exception documentation for details. |+| [[library_sessionremoteexception|SessionRemoteException]] | Session has failed. \\ See the exception documentation for details. |
| TimeoutException | Timeout waiting for ''winscp.com'' to respond. | | TimeoutException | Timeout waiting for ''winscp.com'' to respond. |
-===== Remarks =====+===== [[remarks]] Remarks =====
With [[protocols|SFTP and SCP protocols]], executes arbitrary [[remote_command|remote shell command]]. With [[protocols|SFTP and SCP protocols]], executes arbitrary [[remote_command|remote shell command]].
With FTP protocol, executes a protocol command. With FTP protocol, executes a protocol command.
With SFTP protocol, that does not allow execution of arbitrary remote command, separate [[shell session]] will be automatically opened. With SFTP protocol, that does not allow execution of arbitrary remote command, separate [[shell session]] will be automatically opened.
 +
 +Not supported with WebDAV and S3 protocols.
The command must not require user input. The command must not require user input.
-===== Example =====+===== [[example]] Example ===== 
==== [[csharp]] C# Example ==== ==== [[csharp]] C# Example ====
<code csharp> <code csharp>
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        {         {
            // Setup session options             // Setup session options
-            SessionOptions sessionOptions = new SessionOptions {+            SessionOptions sessionOptions = new SessionOptions 
 + ···········{
                Protocol = Protocol.Sftp,                 Protocol = Protocol.Sftp,
                HostName = "example.com",                 HostName = "example.com",
                UserName = "user",                 UserName = "user",
                Password = "mypassword",                 Password = "mypassword",
-                SshHostKey = "ssh-rsa 1024 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"+                SshHostKeyFingerprint = "ssh-rsa 2048 xxxxxxxxxxx..."
            };             };
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                session.Open(sessionOptions);                 session.Open(sessionOptions);
-                // Execute mysqldump on the server to dump all MySQL databases and compress the results+                // Execute mysqldump on the server to dump all MySQL databases and 
 +                // compress the results
                const string dbUsername = "USERNAME";                 const string dbUsername = "USERNAME";
                const string dbPassword = "PASSWORD";                 const string dbPassword = "PASSWORD";
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                string dumpCommand =                 string dumpCommand =
-                    string.Format("mysqldump --opt -u {0} --password={1} --all-databases | gzip > {2}", +                    string.Format( 
- ·································dbUsername, dbPassword, tempFilePath); +························"mysqldump --opt -u {0} --password={1} --all-databases | gzip > {2}", 
-                session.ExecuteCommand(dumpCommand);+ ·······················dbUsername, dbPassword, tempFilePath); 
 +                session.ExecuteCommand(dumpCommand).Check();
                // Download the database dump                 // Download the database dump
-                session.GetFiles(tempFilePath, "D:\\dbbackup\\").Check();+                session.GetFiles(tempFilePath, @"D:\dbbackup\").Check();
            }             }
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==== [[vbnet]] VB.NET Example ==== ==== [[vbnet]] VB.NET Example ====
<code vbnet> <code vbnet>
-Imports System 
Imports WinSCP Imports WinSCP
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        Try         Try
            ' Setup session options             ' Setup session options
-            Dim sessionOptions As New SessionOptions;+            Dim sessionOptions As New SessionOptions
            With sessionOptions             With sessionOptions
                .Protocol = Protocol.Sftp                 .Protocol = Protocol.Sftp
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                .UserName = "user"                 .UserName = "user"
                .Password = "mypassword"                 .Password = "mypassword"
-                .SshHostKey = "ssh-rsa 1024 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"+                .SshHostKeyFingerprint = "ssh-rsa 2048 xxxxxxxxxxx..."
            End With             End With
-            Using session As Session = New Session+            Using session As New Session
                ' Connect                 ' Connect
                session.Open(sessionOptions)                 session.Open(sessionOptions)
-                ' Execute mysqldump on the server to dump all MySQL databases and compress the results+                ' Execute mysqldump on the server to dump all MySQL databases and 
 +                ' compress the results
                Const dbUsername As String = "USERNAME"                 Const dbUsername As String = "USERNAME"
                Const dbPassword As String = "PASSWORD"                 Const dbPassword As String = "PASSWORD"
                Const tempFilePath As String = "/tmp/all_databases.gz"                 Const tempFilePath As String = "/tmp/all_databases.gz"
-                ' Execute mysqldump on the server to dump all MySQL databases and compress the results +                Dim dumpCommand As String = 
-················Dim dumpCommand As String = _ +                    String.Format( 
-                    String.Format("mysqldump --opt -u {0} --password={1} --all-databases | gzip > {2}", _+························"mysqldump --opt -u {0} --password={1} --all-databases | gzip > {2}",
                        dbUsername, dbPassword, tempFilePath)                         dbUsername, dbPassword, tempFilePath)
-                session.ExecuteCommand(dumpCommand)+                session.ExecuteCommand(dumpCommand).Check()
                ' Download the database dump                 ' Download the database dump
-                session.GetFiles(tempFilePath, "D:\dbbackup\").Check+                session.GetFiles(tempFilePath, "D:\dbbackup\").Check()
            End Using             End Using
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End Class End Class
 +</code>
 +
 +==== [[powershell]] PowerShell Example ====
 +Learn more about [[library_powershell|using WinSCP .NET assembly from PowerShell]].
 +
 +<code powershell>
 +try
 +{
 +    # Load WinSCP .NET assembly
 +    Add-Type -Path "WinSCPnet.dll"
 +
 +    # Setup session options
 +    $sessionOptions = New-Object WinSCP.SessionOptions -Property @{
 +        Protocol = [WinSCP.Protocol]::Sftp
 +        HostName = "example.com"
 +        UserName = "user"
 +        Password = "mypassword"
 +        SshHostKeyFingerprint = "ssh-rsa 2048 xxxxxxxxxxx..."
 +    }
 +
 +    $session = New-Object WinSCP.Session
 +
 +    try
 +    {
 +        # Connect
 +        $session.Open($sessionOptions)
 +
 +        # Execute mysqldump on the server to dump all MySQL databases and compress the results
 +        $dbUsername = "USERNAME"
 +        $dbPassword = "PASSWORD"
 +        $tempFilePath = "/tmp/all_databases.gz"
 +
 +        $dumpCommand =
 +            "mysqldump --opt -u $dbUsername --password=$dbPassword --all-databases | " +
 +            "gzip > $tempFilePath"
 +        $session.ExecuteCommand($dumpCommand).Check()
 +
 +        # Download the database dump
 +        $session.GetFiles($tempFilePath, "D:\dbbackup\").Check()
 +
 +    finally
 +    {
 +        # Disconnect, clean up
 +        $session.Dispose()
 +    }
 +
 +    exit 0
 +}
 +catch
 +{
 +    Write-Host "Error: $($_.Exception.Message)"
 +    exit 1
 +}
</code> </code>

Last modified: by martin