Why does this script produce an error?

medium📝 Debug Q7 of 15

Bash Scripting - String Operations

echo ${#}

AVariable is unset

BMissing variable name after #

CSyntax is correct, no error

DBraces are not allowed here

Step-by-Step Solution

Solution:

Step 1: Analyze the expression ${#}
The syntax expects a variable name after the # to get length.
Step 2: Missing variable name causes syntax error
Without a variable name, bash cannot compute length and throws error.
Final Answer:
Missing variable name after # -> Option B
Quick Check:
Variable name required after # in ${#var} [OK]

Quick Trick: Always specify variable name after # in ${#var} [OK]

Common Mistakes:

MISTAKES

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