Selecting a new user's login shell | LPIC-1 102-500 Exam original practice question

107.1Standard

Set alice's login shell to /bin/bash when creating the account.

Which command is appropriate?

Hint 1: Focus on the requirement

Identify what must change and what must remain unchanged. Then choose the command whose scope matches that requirement.

Hint 2: Check each command's role

Separate commands that display information, change state, remove data, or affect a child process.

useradd -d /bin/bash alice: Incorrect. -d sets the home directory.
useradd -g /bin/bash alice: Incorrect. -g selects the primary group.
useradd -s /bin/bash alice: Correct. -s /bin/bash selects the login shell.
useradd -u /bin/bash alice: Incorrect. -u sets a numeric UID.

Detailed explanation

Incorrectuseradd -d /bin/bash alice

Incorrect. -d sets the home directory.

Incorrectuseradd -g /bin/bash alice

Incorrect. -g selects the primary group.

Correctuseradd -s /bin/bash alice

Correct. -s /bin/bash selects the login shell.

Incorrectuseradd -u /bin/bash alice

Incorrect. -u sets a numeric UID.

An example you can run in a temporary verification environment.

useradd --help 2>&1 | grep -E -- '--shell|-s,' | head -n 1

-sまたは--shellの説明

Foundation review

Check whether the command acts on the current shell, a new process, an existing process, or a file.

Use the supplied command and compare the output with the expected result.

Question IDKP-107-667

Environmentshadow-utils useradd / help読取のみ

Last technical review2026-08-13