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答案：答案：B What should be done to make a shell script executable?A.use the run commandB.set the execute permissionC.call it from another command or programD.use a shell script compiler to convert its textto an executable program答案：答案：D What should be done to test the lines of a shell script?A.use the exec commandB.run the shell syntax checker shckC.model them with a high level language(e.g.,”C”)firstD.enter each one at the command line and check the results