(PowerShell) SSH Commands to Cisco Switch

Demonstrates how to establish an SSH session with a Cisco switch (or something similar) and send commands in a device console session.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

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

$ssh = New-Object Chilkat.Ssh

$success = $ssh.Connect("172.16.16.100",22)
if ($success -ne $true) {
    $($ssh.LastErrorText)
    exit
}

# Authenticate using login/password:
$success = $ssh.AuthenticatePw("myLogin","myPassword")
if ($success -ne $true) {
    $($ssh.LastErrorText)
    exit
}

# Start a shell session.
$channelNum = $ssh.QuickShell()
if ($channelNum -lt 0) {
    $($ssh.LastErrorText)
    exit
}

# If the CISCO switch returns a prompt with "#", then read until we get the prompt.
# (It's not actually required that we do this, but it helps to know that all is OK at this point..)
$success = $ssh.ChannelReceiveUntilMatch($channelNum,"#","utf-8",$true)
if ($success -ne $true) {
    $($ssh.LastErrorText)
    exit
}

# Show what we received so far:
$($ssh.GetReceivedText($channelNum,"utf-8"))

# Send a "show clock" command.
$success = $ssh.ChannelSendString($channelNum,"show clock`n","utf-8")

# Read the output to the next interactive prompt.
$success = $ssh.ChannelReceiveUntilMatch($channelNum,"#","utf-8",$true)
if ($success -ne $true) {
    $($ssh.LastErrorText)
    exit
}

$($ssh.GetReceivedText($channelNum,"utf-8"))

# Send another command and get the output, and so on...
$success = $ssh.ChannelSendString($channelNum,"some other command`n","utf-8")
$success = $ssh.ChannelReceiveUntilMatch($channelNum,"#","utf-8",$true)
if ($success -ne $true) {
    $($ssh.LastErrorText)
    exit
}

$($ssh.GetReceivedText($channelNum,"utf-8"))

$ssh.Disconnect()