Reading the first positional argument | LinuC Level 1 102 Exam original practice question

1.06.2Basic

Run ./deploy.sh staging west.

Assign only staging to target.

Which assignment is appropriate?

Hint 1: Focus on the input model

Separate word-list iteration, condition-controlled loops, field splitting, and literal input handling before comparing the choices.

Hint 2: Key terms

Review the short definitions of the shell syntax, parameters, permissions, and control flow involved.

$1: The first positional argument in the current context.
$2: The second positional argument in the current context.
$0: The name used to invoke the shell or script.
$#: The number of positional parameters in the current context.
Positional parameter: A special parameter holding a script or function argument by position.

Detailed explanation

Correcttarget=$1

Correct. target=$1 assigns staging.

Incorrecttarget=$0

Incorrect. $0 is the script's invoked name.

Incorrecttarget=$#

Incorrect. $# is the number of arguments, 2.

Incorrecttarget=$2

Incorrect. $2 is west, the second argument.

An example you can run in a temporary verification environment.

sh -c 'target=$1; printf "%s\n" "$target"' deploy.sh staging west

staging

Foundation review

A reusable group of commands that runs in the caller's shell context.

A numbered argument or special value supplied to a script or function.

Conditions, loops, and exit statuses determine which shell commands run.

Question IDKL-102-933

EnvironmentPOSIX sh / 短命プロセス

Last technical review2026-08-13

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