Bash Scripting - String Operations
If
text="automation", what does ${text:0:4} return?If text="automation", what does ${text:0:4} return?
easy🧠 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify offset and length
Offset is 0, length is 4, so extract first 4 characters starting at index 0.Step 2: Extract substring from "automation"
Characters at positions 0 to 3 are 'a', 'u', 't', 'o' forming "auto".Final Answer:
"auto" -> Option CQuick Check:
Substring from start with length 4 = "auto" [OK]
Quick Trick: Offset 0 means start; length is how many chars to take [OK]
Common Mistakes:
MISTAKES- Starting count at 1 instead of 0
- Extracting wrong characters
- Including extra characters beyond length
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