Inspecting shell command resolution | LinuC Level 1 101 Exam original practice question

1.02.4Basic

Determine whether cd resolves as an external file, builtin, alias, or function in the current Bash.

Which command is appropriate?

Hint 1: Focus on the requirement

The question asks how the current shell classifies the command name.

Hint 2: Key terms

Review the short search and filesystem-placement definitions before comparing the choices.

type: Shows whether a shell name resolves to an alias, function, builtin, or external file.
Shell builtin: A command implemented by the shell and run without an external process.
External command: A program file started as a separate process from a PATH entry.
type -a: A Bash form that displays multiple resolution candidates.

Detailed explanation

Incorrectwhich cd

Incorrect. which mainly searches PATH and may not report a shell builtin correctly.

Correcttype cd

Correct. type cd reports how Bash resolves the name.

Incorrectwhereis cd

Incorrect. whereis searches standard filesystem locations.

Incorrectlocate cd

Incorrect. locate searches a filename database.

An example you can run in a temporary verification environment.

type cd

cd is a shell builtin相当の表示

Environment: Bash 5.x / シェル状態の照会のみ
Use read-only lookups or disposable paths when verifying search behavior.
Distribution-specific defaults should be checked before changing system configuration.

Foundation review

A shell-resolution query is different from searching directories for a file with the same name.

Run the query in the same shell session whose aliases, functions, and PATH matter.

Question IDKL-101-419

EnvironmentBash 5.x / シェル状態の照会のみ

Last technical review2026-08-13

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