Renaming a login | LinuC Level 1 102 Exam original practice question

1.08.1Basic

Rename existing user oldname to newname.

Which command is appropriate?

Hint 1: Focus on account attributes

Separate account creation, home-directory handling, group membership, login identity, and password state before comparing the commands.

Hint 2: Key terms

Review the short definitions of account records, groups, home directories, shells, and password state involved.

Detailed explanation

Incorrectusermod -d newname oldname

Incorrect. -d changes the home-directory path.

Incorrectusermod -g newname oldname

Incorrect. -g changes the primary group.

Correctusermod -l newname oldname

Correct. It changes oldname to newname.

Incorrectusermod -s newname oldname

Incorrect. -s changes the login shell.

An example you can run in a temporary verification environment.

usermod --help | grep -E -- '-l,|--login'

新しいログイン名を示す説明行

Foundation review

Identity attributes such as a user ID, home directory, and login shell.

Primary and supplementary groups used during permission checks.

State and time limits that control password changes and account access.

Question IDKL-102-1019

Environmentshadow-utils usermod help / 状態変更なし

Last technical review2026-08-13

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