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it168
16 年
Hadoop Shell命令
-e 检查文件是否存在。如果存在则返回0。 -z 检查文件是否是0字节。如果是则返回0。 -d 如果路径是个目录,则返回1,否则返回0。 将源文件输出为文本格式。允许的格式是zip和TextRecordInputStream。 创建一个0字节的空文件。 成功返回0,失败返回-1。
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