Bash Scripting - Quoting and Expansion
What will be the output of the following bash script?
#!/bin/bash x=5 y=3 result=$((x * y + 2)) echo $result
What will be the output of the following bash script?
medium📝 Command Output Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Substitute variable values in the expression
x=5 and y=3, so expression is 5 * 3 + 2.Step 2: Calculate the arithmetic expression
5 * 3 = 15, then 15 + 2 = 17.Final Answer:
17 -> Option AQuick Check:
5 * 3 + 2 = 17 [OK]
Quick Trick: Calculate multiplication before addition inside $(( )) [OK]
Common Mistakes:
MISTAKES- Treating expression as string concatenation
- Ignoring operator precedence
- Expecting syntax error due to variables
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