PowerShell: Case Sensitivity

In general, everything in PowerShell is case-insensitive.

• Command names are case-insensitive.
• Parameter (option) names are case-insensitive.
• Operator names are case-insensitive.
• String matching are case-insensitive by default.
• Variable names are case-insensitive.
• Function names are case-insensitive.
• Environment variable names are case-insensitive.