Bash Scripting - Functions
What will this script print?
add() {
echo $(( $1 + $2 ))
}
add 5 3What will this script print?
medium📝 Command Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand arithmetic expansion
The expression $(( $1 + $2 )) calculates the sum of the first and second arguments passed to the function.Step 2: Calculate the sum of 5 and 3
5 + 3 equals 8, so the echo prints 8.Final Answer:
8 -> Option CQuick Check:
Arithmetic expansion sums arguments correctly = 8 [OK]
Quick Trick: Use $(( )) for arithmetic in bash functions [OK]
Common Mistakes:
MISTAKES- Concatenating strings instead of adding
- Missing spaces inside $(( ))
- Using quotes around arithmetic expression
Master "Functions" in Bash Scripting
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