Running one command in UTC | LPIC-1 102-500 Exam original practice question

107.3Standard

Do not change the system timezone.

Run one date command using UTC through the TZ environment variable.

Which command is appropriate?

Hint 1: Focus on locale categories

Identify which locale category controls the requested language, number, or date behavior.

Hint 2: Key terms

Review the short definitions of locale categories and their presentation effects.

TZ: An environment variable that supplies timezone interpretation to a process.
POSIX TZ: A timezone notation such as UTC0 that combines an abbreviation with an offset.
Process-scoped setting: A setting applied to a command and its children without changing the parent shell or system.
timedatectl: A command that manages systemd system time, timezone, and synchronization state.

Detailed explanation

CorrectTZ=UTC0 date '+%Z'

Correct. The date process uses UTC0 without changing the system configuration.

IncorrectLANG=UTC0 date '+%Z'

Incorrect. LANG controls locale, not timezone.

Incorrectdate TZ=UTC0 '+%Z'

Incorrect. TZ is passed as a date argument rather than an environment assignment.

Incorrecttimedatectl UTC0 date '+%Z'

Incorrect. timedatectl changes system settings and is not used in this wrapper form.

An example you can run in a temporary verification environment.

TZ=UTC0 date '+%Z'

UTC

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-107-713

EnvironmentGNU date / POSIX TZ形式UTC0

Last technical review2026-08-13

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