Powershell命令不起作用的地方

Question

I have a text file that contains elements separated by an '=' sign (ie color1=red, color2=blue, etc.

I used the import-csv command and provide headers (ie

$Import_Cfg = Import-Csv .\Env.cfg -Header Title,Setting -Delimiter =

)

Now this works fine if I want to assign a particular item to another variable if I know the index number and I have used that approach but it won't always work for me because I don't always know what other data will be there.

I thought that by using something like:

$MyColor1 = $Import_Cfg.Setting |where {$_.Title -match "Blue"}

$MyColor2 = $Import_Cfg.Setting |where {$_.Title -match "Red"}

it should work, but I get no returns for either item. When I type in $Import_cfg I can see the entire array (without the "=" signs). If I tell use the command

$MyColor1 = $import_cfg[0].setting 

I get the right answer.

Obviously I'm not using colors but a bunch of different items that I need to assign to variables for use elsewhere. Any thoughts on what I'm doing wrong? Everything I've read says that what I have above should work.

Please no flames on why I'm using import-csv vs get-content. I'm sure either will work. This is an approach that I've used and computationally it doesn't matter. If programatically it makes a difference I'm all ears!!!

Thanks for all your help.

Answer 1

The value of the Setting property itself has no Title property.

You need to apply Where before you extract the property value you need (as mentioned in the comments ):

$BlueSettings = $Import_Cfg |where {$_.Title -match "Blue"} |Select-Object -ExpandProperty Setting

or, using property enumeration:

$BlueSettings = ($Import_Cfg |where {$_.Title -match "Blue"}).Setting