Andy sql (11/6/2014)
and you would be assuming that "ls" is correctly configured as an alias to "Get-ChildItem". Maybe only 99.994% correct.
Touché! But of course the assumption is that the MS documentation that says "ls" is indeed configured like that is correct, and as it's a statement on a BOL page I would put the probability that it is actually correct a little lower than 99.994%, say about 99.5% (or maybe even lower). 😀