Going through a file I was trying to select lines that only contain "teamsites".  I tried piping file through where-object { $_ -contains "teamsites"} and got nothing whether or not I used wildcard "*" before or after "*teamsites*  or both.  Using -like selected the lines I wanted, but I have gone through text and help files without seeing why.

To just further confuse myself I also tried $_.contains("teamsites" and that just got syntax errors.  Shouldn't that work?

This might help.

http://www.computerperformance.co.uk/powershell/powershell_conditional_operators.htm

-like = Wildcard match
-contains = is an containment operator for Arrays. Checks to see if the array "CONTAINS" the value.

You could try Select-String --

Select-String -path 'path to your file' -text 'teamsites'

Another option is to use -match (regex operator)

{ $_ -match "teamsites"}

or another way to use select-string
PS> Get-Content $file | Select-String "teamsites"