concept case sensitivity in category powershell

This is an excerpt from Manning's book Windows PowerShell in Action, Third Edition. Login to get full access to this book.

Case sensitivity— PowerShell, like Windows, is case-insensitive. Linux and macOS are case-sensitive, so the correct case must be used for filenames, paths, and environment variables. Running scripts, loading modules, and filename tab completion all depend on the correct case being used. Cmdlet names are case-insensitive!

3.3.2. Comparisons and case sensitivity

Next let’s look at the “i” and “c” versions of the comparison operators—the case-sensitive and case-insensitive versions. Obviously, case sensitivity only applies to strings. All the comparison operators have both versions. For example, the -eq operator has the following variants: