[Solved] What is wrong with this script snippet?command if [ $? = 0 ] then echo "OK" fi - Ans: Using = instead of -eq for numeric comparison | Bash Scripting

Bash Scripting - Error Handling

What is wrong with this script snippet?

command
if [ $? = 0 ]
 then
 echo "OK"
fi

AUsing single brackets instead of double brackets

BMissing semicolon after if condition

CUsing = instead of -eq for numeric comparison

DNot quoting the string "OK"

Step-by-Step Solution

Solution:

Step 1: Understand test command syntax
For numeric comparison in [ ], use -eq, not = which is for string comparison.
Step 2: Identify error in condition
Using = compares strings, so $? = 0 compares string values, which can cause unexpected results.
Final Answer:
Using = instead of -eq for numeric comparison -> Option C
Quick Check:
Numeric test uses -eq, not = [OK]

Quick Trick: Use -eq for numbers, = for strings in [ ] tests [OK]

Common Mistakes:

MISTAKES

Master "Error Handling" in Bash Scripting

9 interactive learning modes - each teaches the same concept differently

More Bash Scripting Quizzes

What is wrong with this script snippet?