# ICX Switch Configuration Script with Posh-SSH
# This script is designed to extract IP Addresses from switches.txt, SSH into the switch 
# with the provided credentials (brocade, brocade), and backup the configuration of the switches 
# to a TFTP Server. The output will be saved in the root TFTP directory and the file will be named
# for the switch IP Address and then exit the session.
#

# Enter user credentials into the script
$User = "brocade"
$PWord = ConvertTo-SecureString -String "brocade" -AsPlainText -Force
$Credential = New-Object -TypeName "System.Management.Automation.PSCredential" -ArgumentList $User, $PWord

# Read hosts into the variable to perform on multiple hosts
foreach($switchip in Get-Content .\switches.txt) 
{
    #Open the SSH session
    New-SSHSession -ComputerName $switchip -Credential ($Credential) -AcceptKey -Force -Verbose
    $SSHStream = New-SSHShellStream -Index 0

    #Break to establish session
    sleep 10

    # Write commands to the switch
    $SSHStream.WriteLine("copy running-config tftp 10.10.10.100 " +$switchip ".txt")

    sleep 2

    # End SSH session
    Remove-SSHSession -Index 0
}