A.Runthescriptwithan’sh-x’infront.
B.Runthescriptwitha’ksh-v’infront.
C.Typedebugintothecommandlinebeforerunningthescript.
D.Type’set-x’intothecommandlinebeforerunningthescript.
参考答案：A
ARunthescriptwithan’sh-x’infrontBRunthescriptwitha’ksh-v’
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