$myString = "helloWorld" # using the range operator [(start_i)..(end_i)] $myString[3..8] -join '' # 'loWorl' $myString[-4..3] -join '' # 'orldhello' # using .Substring(start_i, substring_length) $myString.Substring(3, 3) # loWorl $myString.Substring(1) # elloWorld