Solved

powershell - run scripts depending on what has previously run

Posted on 2016-11-08
3
33 Views
Last Modified: 2016-11-08
I am trying to write some code that runs one of two functions. If function1 is run then something is set that can be referred to throughout the rest of the script and other things run according to that. Can anyone make sense of that?

-----

function menu ()
{
         Write-Host "Press '1' to run FUNCTION1"
         Write-Host "Press '2' to run FUNCTION2"
 
         $input = Read-Host "Please make a selection"
 
         switch ($input)
         {
             '1' {
                     FUNCTION1
                 }
             '2' {
                     FUNCTION2
                 }
          }
}


function FUNCTION1 ()
SOMEWHERE IN HERE SOMETHING IS SET THAT SPECIFIES FUNCTION1 HAS RUN
{
next
}


function FUNCTION2 ()
SOMEWHERE IN HERE SOMETHING IS SET THAT SPECIFIES FUNCTION2 HAS RUN
{
next
}


funtion next ()
{
IF FUNCTION1 HAS RUN THEN DO THIS....
IF FUNCTION2 HAS RUN THEN DO THIS....
}
0
Comment
Question by:Pete
  • 2
3 Comments
 
LVL 83

Expert Comment

by:oBdA
ID: 41878792
There are several possibilities to do that; the best depends on what it is exactly you want to achieve.
This, for example, sets some variables with a "Script" scope, so that they're available all over the script:
Function menu() {
	$Script:Function1_Executed = $False
	$Script:Function2_Executed = $False
	Write-Host "Press '1' to run FUNCTION1"
	Write-Host "Press '2' to run FUNCTION2"
 	$input = Read-Host "Please make a selection"
 
	switch ($input) {
		'1' {
			 FUNCTION1
		}
		'2' {
			FUNCTION2
		}
	}
}

Function FUNCTION1() {
	$Script:Function1_Executed = $True
	next
}

Function FUNCTION2() {
	$Script:Function2_Executed = $True
	next
}

Function next() {
	If ($Script:Function1_Executed) {
	}
	If ($Script:Function2_Executed) {
	}
}

Open in new window

1
 
LVL 1

Author Comment

by:Pete
ID: 41878828
Thanks, the way your code is displayed is better, do you just reply to the Q with the 'CODE' button?

anyway that looks promising.
- Is the $Script a built in command?
- Why do you need to specify $Script:Function1_Executed and $Script:Function2_Executed as both false in the function menu? Does this mean any function in this script must reference $Script:Function1_Executed and $Script:Function2_Executed and then specify one or both as $false or $true?

Thanks
0
 
LVL 83

Accepted Solution

by:
oBdA earned 500 total points
ID: 41878844
"$Script:Variable" (as well as some others, see "Get-Help about_scopes") defines a variable's scope. Without the $Script scope, the variable would only be set in the function's scope, and then forgotten once the function is done.
$Script:Function1_Executed and $Script:Function2_Executed are set to $False in the Menu function so that they're properly initialized before Next is called.
If you want to keep their state over several runs of the Menu function, you should initialize them in the main part of the script. It just seems like you want to check from which function "Next" was called.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

You might have come across a situation when you have Exchange 2013 server in two different sites (Production and DR). After adding the Database copy in ECP console it displays Database copy status unknown for the DR exchange server. Issue is strangeā€¦
The recent Microsoft changes on update philosophy for Windows pre-10 and their impact on existing WSUS implementations.
In this Micro Tutorial viewers will learn how they can get their files copied out from their unbootable system without need to use recovery services. As an example non-bootable Windows 2012R2 installation is used which has boot problems.
In this Micro Tutorial viewers will learn how to use Boot Corrector from Paragon Rescue Kit Free to identify and fix the boot problems of Windows 7/8/2012R2 etc. As an example is used Windows 2012R2 which lost its active partition flag (often happenā€¦

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question