Assigning a shell variable | LinuC Level 1 101 Exam original practice question

1.03.1Basic

Assign staging to DEPLOY_ENV in the current Bash without trying to execute staging as a command.

Which assignment is correct?

Hint 1: Focus on the requirement

Check the assignment word, the absence of spaces, and the difference between a name and its expanded value.

Hint 2: Key terms

Review the short shell and command-line definitions before comparing the choices.

Assignment word: The space-free NAME=value form that assigns a shell variable.
Parameter expansion: Replacing $NAME or ${NAME} with a variable value.
Whitespace: Characters that separate shell words and can change assignment syntax.
Positional parameter: A numbered argument supplied to a shell script or function.

Detailed explanation

IncorrectDEPLOY_ENV = staging

Incorrect. Spaces make Bash parse DEPLOY_ENV as a command or argument rather than an assignment.

Incorrect$DEPLOY_ENV=staging

Incorrect. $DEPLOY_ENV is an expansion, not a valid assignment name.

CorrectDEPLOY_ENV=staging

Correct. DEPLOY_ENV=staging assigns the value in the current shell.

Incorrectset DEPLOY_ENV staging

Incorrect. set is not the normal Bash assignment syntax.

An example you can run in a temporary verification environment.

DEPLOY_ENV=staging; printf '%s\n' "$DEPLOY_ENV"

staging

Foundation review

A shell assignment names the variable on the left; a dollar sign is used when reading it.

Quote the value when it contains spaces and inspect it with printf or a shell query.

Question IDKL-101-432

EnvironmentBash 5.x / シェル変数のみ

Last technical review2026-08-13

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