How many letters should you type to identify a command in PowerShell?

• A. All letters
• B. Only the first letter
• C. As many letters as necessary to make it unique
• D. None; use the full name every time

Answer: (C)

In PowerShell, you don’t have to type the full cmdlet name. You should enter as many letters as needed to make the command unique among all available commands (cmdlets, functions, aliases, etc.). Once the prefix is unambiguous, PowerShell can complete it or run it as intended. If the prefix matches multiple commands, you’ll need to type more letters or press Tab to cycle through the matches until you reach the unique one. This approach speeds entry while preventing ambiguity. For example, typing a short prefix like Get-Pro may complete to Get-Process if no other command starts with Get-Pro; if there is another command with the same prefix, you’d add letters to disambiguate. You can check what commands match a prefix with Get-Command using wildcards.