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Free IIT Madras BS notes, PYQs and mock tests at btechi.in

System Commands · Bash scripting: logic, loops, functions

14 questions · 60 marks · 4 papers

Answer key

Indian Institute of Technology Madras

BS Degree Programme · Examination & Study Paper

System Commands

Bash scripting: logic, loops, functions

Official Paper

Examination Instructions & Guidelines

Solve on notebook/paper first before checking solutions.
MCQ: Exactly 1 option is correct. Negative marking applies.
MSQ: One or more options correct. Select all to score.
NAT: Numerical response. No negative marking.
Scientific calculator allowed for all calculations.
Official answer key is sealed at the end of this sheet.

End Term · 31 Aug 2025 (FN)End Term

Q1MCQ5 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
5. E
Q2MCQ5 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q3MSQ5 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q4MSQ5 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D

End Term · 31 Aug 2025 (AN)End Term

Q5MCQ5 Marks·Choose one option
Key ↓
1. Ared and green
2. Bred and blue
3. Cgreen and yellow
4. Dred and yellow
Q6NAT5 Marks·Write the number
Key ↓
Your answer:

End Term · 22 Dec 2024 (FN)End Term

Q7MSQ4 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
5. E
6. F
Q8NAT3 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q9NAT4 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q10Short answer4 Marks·Write the answer
Asked 2 times Key ↓
NOTE:Enter the exact answer without any space in the beginning or at the end.
Your answer:

End Term · 22 Dec 2024 (AN)End Term

Q11MSQ4 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
5. E
6. F
Q12Short answer3 Marks·Write the answer
Asked 2 times Key ↓
NOTE: Enter the exact answer without any extra space in the beginning or at the end.
Your answer:
Q13NAT4 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q14NAT4 Marks·Write the number
Asked 2 times Key ↓
Your answer:

Official Key

Master Answer Key & Explanations

Official answer keys from IIT Madras BS past papers. Click any question to review.

Reveal Key

Q1E

Q2B

Q3A, C, D

Q4B, C

Q5B

Q62

Q7B, C, D, F

Q86

Q99

Q10HWFS

Q11B, C, D, F

Q12LAA

Q136

Q144

Detailed Answer Notes & Working

Q10Answer: HWFS: Case-sensitive: the answer must match exactly.
Q12Answer: LAA: Case-sensitive: the answer must match exactly.

Questions and answer keys are reproduced from the official IIT Madras BS papers. Topics and repeated question types are BTechi’s own grouping. BTechi is not affiliated with IIT Madras.