Which command shows the current user?

• A. Whoami
• B. Cat
• C. Touch
• D. NIC

Answer: (A)

To find out who you’re logged in as in the terminal, you use a command that prints your current username. whoami does exactly that: it shows the effective username of the user running the session. It’s the simplest, most direct way to answer “who am I” in a Unix-like environment.

Why this is the best pick: it’s purpose-built to reveal the active user, so you get a clear, concise result without extra details. If you used other commands, you wouldn’t get the user information you need: cat displays file contents, so it would only reveal your username if you happened to inspect a file that mentions it; touch is for creating or updating file timestamps and has nothing to do with identity. NIC isn’t a standard command for showing users either; it typically refers to a network interface card rather than a way to identify the logged-in user.

If you want an alternative way to confirm, you can use id -un, which also prints the current username, but whoami remains the quickest, most straightforward answer.