Bash Scripting - String Operations
Which of the following is the correct syntax to extract 4 characters starting at position 1 from variable
text?Which of the following is the correct syntax to extract 4 characters starting at position 1 from variable text?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall correct substring syntax
The correct syntax uses colon separators:${var:offset:length}.Step 2: Match syntax to options
${text:1:4} matches this exactly with offset 1 and length 4. Others use invalid separators or wrong order.Final Answer:
${text:1:4} -> Option AQuick Check:
Correct syntax uses colons [OK]
Quick Trick: Use colons, not commas or dashes [OK]
Common Mistakes:
MISTAKES- Using commas or dashes instead of colons
- Swapping offset and length
- Missing braces around variable
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