[Solved] What is wrong with this code snippet? var="hello world" echo ${var:5,3} - Ans: Comma is invalid separator; should use colon | Bash Scripting

Bash Scripting - String Operations

What is wrong with this code snippet?

var="hello world"
echo ${var:5,3}

AOffset 5 is out of range

BLength 3 is too large

CComma is invalid separator; should use colon

DVariable name is incorrect

Step-by-Step Solution

Solution:

Step 1: Check substring syntax
The substring syntax requires colons between offset and length, not commas.
Step 2: Identify error in code
The code uses a comma ${var:5,3} which is invalid and causes a syntax error.
Final Answer:
Comma is invalid separator; should use colon -> Option C
Quick Check:
Use colons, not commas [OK]

Quick Trick: Use colons between offset and length [OK]

Common Mistakes:

MISTAKES

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