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單項選擇題

Using vi, you want to save changes to the file myfile with :w!, but vi complains it cannot write to the file. Therefore, you want to check the write permissions on the file. To do this without leaving vi, you type:()

A. :!ls-I myfile
B. :\ls-l myfile
C. esc :Is -I myfile
D. :?ls-l myfile

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