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单项选择题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

  • A
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