topic Re: Invoke-VMScript. Pass variable in BASH in VMware PowerCLI Discussions

Invoke-VMScript. Pass variable in BASH

IKirill — Mon, 01 Apr 2019 14:01:08 GMT

Hi LUCD, hi all!

Small script to change IP in CentoS

$IPguest = Read-Host -Prompt 'Enter IP Guest'

$script = "sed -i 's:^IPADDR=.*$:IPADDR=$IPguest:g' /etc/sysconfig/network-scripts/ifcfg-ens160"

Invoke-VMScript -VM CentOS-7 -ScriptType bash -ScriptText $script -GuestUser root -GuestPassword P@ssw0rd

Error:sed: -e expression #1, char 13: unterminated `s' command

The problem here: $:IPADDR=$IPguest.

How can I pass variable in this case?

Re: Invoke-VMScript. Pass variable in BASH

LucD — Mon, 01 Apr 2019 14:39:35 GMT

There are 2 issues:

your end of line $ sign: you will have to escape it with a back-tick
you have the indicate the variable that needs to be substituted by enclosing it in parenthesis

Try like this

$IPguest = Read-Host -Prompt 'Enter IP Guest'

$script = "sed -i 's:^IPADDR=.*`$:IPADDR=$($IPguest):g' /etc/sysconfig/network-scripts/ifcfg-ens160"

Invoke-VMScript -VM CentOS-7 -ScriptType bash -ScriptText $script -GuestUser root -GuestPassword P@ssw0rd

Re: Invoke-VMScript. Pass variable in BASH

IKirill — Mon, 01 Apr 2019 20:17:25 GMT

Thanks LucD!

You are absolutely amazing master!!!

Re: Invoke-VMScript. Pass variable in BASH

DanteMc — Fri, 04 Dec 2020 00:56:30 GMT

I may be having a similar problem. I am getting the following error:

PS> Invoke-VMScript -VM CentOS7 -ScriptText 'sed -ri "s|10.28.183.204|10.28.164.138|" /etc/sysconfig/network-scripts/ifcfg-ens192' -GuestUser root -GuestPassword password

Invoke-VMScript : 12/3/2020 5:12:26 PM Invoke-VMScript An error occurred while sending the request.
At line:1 char:1
+ Invoke-VMScript -VM CentOS7 -ScriptText 'sed -ri "s|10.28.183. ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Invoke-VMScript], ViError
+ FullyQualifiedErrorId : Client20_VmGuestServiceImpl_DownloadFileFromGuest_DownloadError,VMware.VimAutomation.ViCore.Cmdlets.Commands.InvokeVmScript

After hitting enter on the PS command, it takes 3 minutes 52 seconds (I used a stopwatch) before PS returns the error message but the SED change is made on the host within a few seconds. Why is the console hanging up for 3m52s before returning the error but the command executed within seconds on the host?

GuestOS: CentOS7_1908 w/ VMWare Tools v11.0.5.17716 running

PowerShell v5.1.14393.2969 with PowerCLI v12.1.0 on Win Svr 2016

Thanks!

Re: Invoke-VMScript. Pass variable in BASH

LucD — Fri, 04 Dec 2020 08:01:17 GMT

I don't think you are experiencing a similar problem.
Your code inside the Guest OS is working, it seems to be the transfer back from the result of the run to the calling station that seems to be experiencing an issue.
This might be a certificate issue on the ESXi node where the VM is running (missing SAN = Subject Alternative Name, more specifically the IP address).

I would suggest opening a new thread.

Re: Invoke-VMScript. Pass variable in BASH

DanteMc — Fri, 04 Dec 2020 16:33:08 GMT

Thank you!