AutoIt

Using sudo in an SSH Shell Session

See more SSH Examples

Demonstrates how to run a command as sudo in a shell session. AutoIt

Local $bSuccess = False

; This example requires the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

$oSsh = ObjCreate("Chilkat.Ssh")

Local $iPort = 22
$bSuccess = $oSsh.Connect("the-ssh-server.com",$iPort)
If ($bSuccess <> True) Then
    ConsoleWrite($oSsh.LastErrorText & @CRLF)
    Exit
EndIf

; Authenticate using login/password:
$bSuccess = $oSsh.AuthenticatePw("theSshLogin","theSshPassword")
If ($bSuccess <> True) Then
    ConsoleWrite($oSsh.LastErrorText & @CRLF)
    Exit
EndIf

; Start a shell session.
; (The QuickShell method was added in Chilkat v9.5.0.65)
Local $iChannelNum = $oSsh.QuickShell()
If ($iChannelNum < 0) Then
    ConsoleWrite($oSsh.LastErrorText & @CRLF)
    Exit
EndIf

; Construct a StringBuilder with our command ("ls") run with "sudo"
; Note: The line-endings are potentially important.  Some SSH servers may
; require either LF or CRLF line endings.  (Unix/Linux/OSX servers typically
; use bare-LF line endings.  Windows servers likely use CRLF line endings.)

; Using "sudo -S" causes the sudo prompt to be written to stderr,
; and the password is read from stdin (i.e. from the echo command ouput).
; The sudo commands -p option allows us to set the prompt, and we can set it to
; the empty string, thus eliminating the prompt from the stderr completely.
; This allows us to run the command as root (super-user) with no prompt.
$oSbCommands = ObjCreate("Chilkat.StringBuilder")
$oSbCommands.Append("echo ""theSshPassword"" | sudo -S -p """" ls" & @LF)

; Add another command to echo a marker string that
; we'll use in ChannelReceiveUntilMatch below.
; The use of single quotes around 'IS' is a trick so that the output
; of the command is "THIS IS THE END OF THE SCRIPT", but the terminal echo
; includes the single quotes.  This allows us to read until we see the actual
; output of the last command.
$oSbCommands.Append("echo THIS 'IS' THE END OF THE SCRIPT" & @LF)

; Send the commands..
$bSuccess = $oSsh.ChannelSendString($iChannelNum,$oSbCommands.GetAsString(),"ansi")
If ($bSuccess <> True) Then
    ConsoleWrite($oSsh.LastErrorText & @CRLF)
    Exit
EndIf

; Send an EOF to indicate no more commands will be sent.
; For brevity, we're not checking the return values of each method call.
; Your code should check the success/failure of each call.
$bSuccess = $oSsh.ChannelSendEof($iChannelNum)

; Receive output up to our marker.
$bSuccess = $oSsh.ChannelReceiveUntilMatch($iChannelNum,"THIS IS THE END OF THE SCRIPT","ansi",True)

; Close the channel.
; It is important to close the channel only after receiving the desired output.
$bSuccess = $oSsh.ChannelSendClose($iChannelNum)

; Get any remaining output..
$bSuccess = $oSsh.ChannelReceiveToClose($iChannelNum)

; Get the complete output for all the commands in the session.
ConsoleWrite("--- output ----" & @CRLF)
ConsoleWrite($oSsh.GetReceivedText($iChannelNum,"ansi") & @CRLF)