[Solved] What does $1 represent in a bash script? - Ans: The first command-line argument passed to the script | Bash Scripting

Bash Scripting - User Input

What does $1 represent in a bash script?

AThe last command-line argument passed to the script

BThe total number of arguments passed to the script

CThe name of the script file

DThe first command-line argument passed to the script

Step-by-Step Solution

Solution:

Step 1: Understand command-line arguments in bash
In bash scripts, $1 refers to the first argument given after the script name.
Step 2: Differentiate from other special variables
$# is the count of arguments, $0 is the script name, and $@ is all arguments.
Final Answer:
The first command-line argument passed to the script -> Option D
Quick Check:
$1 = first argument [OK]

Quick Trick: Remember $1 is always the first argument after script name [OK]

Common Mistakes:

MISTAKES

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What does $1 represent in a bash script?