How to create a dynamic variable in Powershell, sucha as date/time etc

Question

Hi i am not exactly sure if my wording is right but i need a variable which contains current date/time whenever i write data to log ; how can i do that with

Answer 1

wrap your two commands in function so you will have just one call ?

function add-log{
(param $txt)
$DateTime = get-date  | select -expand datetime
Add-Content $LogFile -Value "$DateTime: $txt"
}