Câu 38: LFCS: Linux Foundation Certified System Administrator

Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter?

1. A. sed '/bob/Bob' letter > newletter
2. B. sed s/bob/Bob/ letter < newletter
3. C. sed 's/bob/Bob' letter > newletter
4. D. sed 's/bob/Bob/g' letter > newletter — đáp án hiện tại
5. E. sed 's/bob, Bob/' letter > newletter