Piping results from a function into a variable

PowerShell Help
1

Hi guys,

I have what I would have thought to be a simple issue but is turning into a bit of a headache to say the least.

Basically I am attempting to run a function which uses POSH-SSH to run a series of commands against an ESXi host.

The code seems to fail when I attempt to add the results from the function into a variable, please see below:

[pre]

if ((Get-Module -Name Posh-SSH -ErrorAction SilentlyContinue) -eq $null ) { Import-Module “Posh-SSH” -Force:$true -WarningAction SilentlyContinue}

$Hosts = Get-Content Hosts.txt

$GetQLogic = “cd /proc/scsi/qla2*;head -2 1;head -2 2”

$GetEmulex = “cd /proc/scsi/lpfc*;head -5 1;head -5 2”

$FullListQLogic = @()

$FullListEmulex = @()

$Cred = get-credential

foreach ($Node in $Hosts)

{

$FullListQLogic += Get-SSHResult($Cred,$Node,$GetQLogic)

$FullListEmulex += Get-SSHResult($Cred,$Node,$GetEmulex)

exit

}

exit

 

 

Function Get-SSHResult() {

Param (

[PSCredential]$connectionCredentials,

[string]$ESXiHost,

[string]$sshCommand

)

#Start SSH Services

start-VMHostService -HostService (Get-VMHost “$ESXihost”| Get-VMHostService | Where { $_.Key -eq “TSM-SSH”} ) -Confirm:$false

$Session = New-SSHSession -ComputerName “$($ESXiHost)” -Credential $($connectionCredentials) -AcceptKey -ConnectionTimeout 90 -KeepAliveInterval 5

$returned = Invoke-SSHCommand -Command “$($sshCommand)” -SessionId $Session.SessionId

if ($Session.SessionId) { $closed = Remove-SSHSession -SessionId $Session.SessionId }

#Stop ssh Services

Stop-VMHostService -HostService (Get-VMHost “$ESXihost” | Get-VMHostService | Where { $_.Key -eq “TSM-SSH”} ) -Confirm:$false

return ($returned)

}

#Connect to the vcenter first so we can enable ssh and disable ssh

Connect-VISserver “vcenter01”

#Get a set of credentials to connect with using posh-ssh

$credentials = Get-credential -Message “Enter Credentials to connect to host” -UserName “root”

$retunedSSH = Get-SSHResult -connectionCredentials $credentials -EsxiHost “esx1.local.com” -sshCommand “ls -al”

Write-Host “$($retunedSSH.output)”

[/pre]

 

It is lines 3 and 4 where I am hoping for the results to be added to fail with the following error:

Get-SSHResult : The term ‘Get-SSHResult’ is not recognized as the name of a cmdlet, function, script file, or operable program

Does anyone know the correct way in which I should be sending the resulting data into my variables?

Many thanks in advance.

2

Apologies, it is lines 20 and 22 which are causign the issue, thanks.

3

Take out the exit.

4

 

The exit is to basically stop the loop after the first attempt as otherwise I get a screen full of blood, If I remove the exit (The other exit statement I forgot to remove).

5

If I remove the exit it still fails with the same error.

6

If above shown is the script you are executing, then you need the function to be defined before it is consumed.

7

Ah yes of course, many thanks!

8

Also, don’t use exit to break out of loops. Use break.