Replace File Contents + Names + Folder Names

renameAll.ps1

$old = "AngularDemo"
$new = "NewProjectName"

Get-ChildItem -Filter "old" - Recursive | Rename-Item -NewName { $.name -replace $old, $new }

$filesTypesToSearch = @(".cs", ".sln", ".csproj", ".config", "*.json")

Get-ChildItem -Include $filesTypesToSearch -Recurse |
ForEach-Object { $a = $.FullName; ( Get-Content $a ) |
    ForEach-Object { $_ -replace $old, $new } | 
    Set-Content $a }