title: Powershell - from hash to string
body: <p>Need to resolve some problem... On teamcity, I received vcs build number as hash, f.e. 0630ad46ed0b297641151d64337faf3fc44078c8. In Powershell step I need to create version from this hash (substring first 8 symbols), but command 
  <code>$version = %build.vcs.number.****</code> is invalid (it's the same if you tried to make command <code>$version = 0630ad46ed0b297641151d64337faf3fc44078c8</code>): the term is not recognized as the name...</p>
  
  <p>How to wrap this variable into string?</p>