题目内容

Which of the following commands will recursively compare two directory trees, just mentioning which files are different, new or deleted?

A. diff -wq /usr/src/linux-4.9 /usr/src/linux-4.10:
B. diff -qr /usr/src/linux-4.9 /usr/src/linux-4.10:
C. diff -sr /usr/src/linux-4.9 /usr/src/linux-4.10:
D. diff -ir /usr/src/linux-4.9 /usr/src/linux-4.10:

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