These include the large middle-class suburbs of Peoria, Mesa, Chandler, and Glendale; upscale Scottsdale; and the college area of Tempe which serves as home to Arizona State University. All areas are modern and generally lacking in historic interest, but keep in mind that Phoenix only had 100,000 residents in 1950.
do {} until ($false) is an infinite loop; it'll only exit if you use something like break, return or throw from inside the loop body. do { } until ($true) would execute the loop body exactly once (which would make the loop rather pointless.) It looks like what you intended to do was wait for a file to exist.
Is PowerShell a scripting language? A. Someone's going to get mad at me no matter which way I answer this, so I'll say yes and no.. PowerShell is, first and foremost, a command-line environment. You run commands. PowerShell does have a few (just under two dozen) intrinsic keywords that form a sort of scripting language: If, For, Switch, and so on. So you can add logical, decision-making capabilities to a script as it grows more complex.