Perform function for all c:\users\*\AppData\Local - powershell

Question

Got the following script that I thought would happily update the specified .ini file in each C:\users\*\AppData\Local\Greeentram folder individually.
function Set-OrAddIniValue {
Param(
[string]$FilePath,
[hashtable]$keyValueList
)
$content = Get-Content $FilePath
$keyValueList.GetEnumerator() | ForEach-Object {
if ($content -match "^$($_.Key)=") {
$content= $content -replace "^$($_.Key)=(.*)", "$($_.Key)=$($_.Value)"
} else {
$content += "$($_.Key)=$($_.Value)"
}
}
$content | Set-Content $FilePath
}
Set-OrAddIniValue -FilePath "C:\Users\*\AppData\Local\Greentram\SDA_Apps.ini" -keyValueList #{
UserName = "Dcebtcv7[[G"
UserEmail = "x}tpwpjmkxmvkYjmklzmx7zv7lr"
UserNo = "*++*(+"
UserKey = "^X(_0[*_/0L)\_0,U,-"
KEM = "H10"
}
What it seems to be doing is somehow combining all the .INI files together and creating a new .INI file for each user.
I have wrongly assumed that C:\Users\*\AppData\Local\Greentram\SDA_Apps.ini would work.
I only want to update or add these specific values to each .INI file.
Set-OrAddIniValue -FilePath "C:\Users\*\AppData\Local\Greentram\SDA_Apps.ini" -keyValueList #{
UserName = "Dcebtcv7[[G"
UserEmail = "x}tpwpjmkxmvkYjmklzmx7zv7lr"
UserNo = "*++*(+"
UserKey = "^X(_0[*_/0L)\_0,U,-"
KEM = "H10"
}

Answer 1

Your function Set-OrAddIniValue doesn't handle wildcards in paths.
$content = Get-Content $FilePath
...
$content | Set-Content $FilePath
The first statement reads the content of all matching files into a single array. The second statement then writes the entire modified content to all matching files. (How would it decide which content belongs to which file?)
You can either call your function for each file individually:
Get-ChildItem "C:\Users\*\AppData\Local\Greentram\SDA_Apps.ini" | ForEach-Object {
Set-OrAddIniValue -FilePath $_.FullName -keyValueList ...
}
or change your function so that it does the enumeration internally:
function Set-OrAddIniValue {
Param(
[string]$FilePath,
[hashtable]$keyValueList
)
Get-ChildItem $FilePath | Where-Object {
-not $_.PSIsContainer # process only files
} | ForEach-Object {
$file = $_.FullName
$content = Get-Content $file
...
$content | Set-Content $file
}
}
On PowerShell v3 and newer you can use Get-ChildItem -File instead of piping the object list through Where-Object {-not $_.PSIsContainer}.