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How Do I implement multiple powershell profiles

Posted on 2014-09-11
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Last Modified: 2014-09-14
I want to be able to use a powershell profile while I am testing and developing scripts.  
When I am satisfied with the scripts I move them to another directory.  
I want the same machine to use only those scripts in that 2nd directory when it runs throughout the day.

I assume that using different profiles is the way to go, but I don't know how to implement it.  If there is a better way of doing it I'm open to that, using another machine is not acceptable.

Thanks
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Question by:c7c4c7
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4 Comments
 
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Expert Comment

by:Chris Dent
ID: 40320589
You could set-up short-cuts (aliases, or any other method you like) to open PowerShell with specific profiles by dot-sourcing scripts:
powershell.exe -command ". C:\DevProfile.ps1" -NoProfile

Open in new window

That'll load your DevProfile script, but won't load the default profile scripts.

Chris
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Author Comment

by:c7c4c7
ID: 40321279
So if I start script "a" with . \ and a specific path I get exactly what I need but then if script "a" calls "script b" would I then have to place the call in "a" with a specific path to "b"?
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Chris Dent earned 500 total points
ID: 40321487
It's this you want:
. <PathToScript>

Open in new window

If the script were in the current directory it would be:
. .\Script.ps1

Open in new window

An absolute path may be specified in a similar manner:
. c:\somewhere\scripts\script.ps1

Open in new window

The existing profile scripts execute in a similar manner (dot-sourced, and therefore execute in global context), so if you want substitution and choice of profiles then this is one way to do it.

There are a myriad of different ways to end up running that particular profile script. From menu-driven options, to short-cuts, to starting PowerShell using a function, etc, etc. The important thing is to find out whether or not this offers you the separation you want.

Chris
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LVL 71

Expert Comment

by:Chris Dent
ID: 40321491
Sorry, I failed to address the A and B thing. Ultimately it depends entirely on what you want to happen (and what script B does).

If script A is dot-sourced, and script B is not then script B would execute in the same manner as if you called it from the console (c:\scripts\scriptb.ps1). Variables and functions declared within script B would have Script scope (and be inaccessible outside). Conversely, variables and functions in script A would have Global scope.

Dot-sourcing is a useful method for executing scripts as if you'd typed it directly into the console. You get something like the same effect when you use Import-Module, although it's use is a bit more specialised.

Dot-sourcing is used (in the background) to execute the default profile scripts exposed in the $PROFILE reserved variable ($PROFILE | Select-Object *).

Chris
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