esProc Improves Text Processing: Fetching Data from a Batch of Files
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Sometimes we need to fetch certain data from multiple files of a multi-level directory during text processing. The operation is too complicated to be well performed at the command line. Though it can be realized in high-level languages, the code is difficult to write; and the involvement of big files will increase the difficulty. esProc, however, can import big files with cursors and call the script recursively and thus can process the data fetching in batch. The following example will show its way of doing it.
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