Powershell parameter to variables into a command

Question

I tried to find a way to join or use variable into a command. I'm trying to create a command that accept parameters: The command: aduser.ps1 John

aduser.ps1 script:
Param($User)
Get-AdUser -filter 'Name -like "*$user*"'

I had error and not sure what operator to use to join in the $user variables, i tried + or & and not working for me.

Answer 1

变量不会在单引号字符串内扩展，而是将其替换为双引号：

Get-AdUser -filter "Name -like '*$user*'"