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使用cat file1 file2 <file3命令可以将文件file1和file2合并后放入file3中?
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单选题UNIX系统命令cat file1file2功能是()。A
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单选题如果使用ln命令将生成了一个指向文件old的符号链接new,如果你将文件old删除,是否还能够访问文件中的数据?()A
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判断题命令cat file1 file2 file3把file1和file2组合成file3。A
对B
错
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