Bash Scripting - Quoting and Expansion
What will be the output of this script?
#!/bin/bash num=4 result=$((num ** 3)) echo $result
What will be the output of this script?
medium📝 Command Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand exponentiation operator
**raises a number to the power of another.Step 2: Calculate 4 to the power 3
4 * 4 * 4 = 64.Final Answer:
64 -> Option DQuick Check:
Exponentiation result = 64 [OK]
Quick Trick: Use ** for powers inside $(( )) [OK]
Common Mistakes:
MISTAKES- Using ^ instead of **
- Expecting string concatenation
- Syntax errors in arithmetic expansion
Master "Quoting and Expansion" in Bash Scripting
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