By combining head and tail, you can read a chunk of data of the given length from the middle of the file!
通过组合使用head和tail，可以从文件的中间部分读取给定长度的一块数据！
Listing 2. Check head content of the existing file for these tags.
列表2.为这些标签核查现有文件中的头内容。
The head utility prints the first part of each file (10 lines by default).
head工具打印每个文件的最开始部分的内容(默认是10行)。
The 13th data file of MICAPS is obtained through changing the head of BMP picture file.
通过更换BMP图像文件的文件头，实现MICAPS十三类数据格式的转换。
If the position of the feature points is stored in a database or in the file head of the watermarked image, the original image is not necessary for watermark detection.
将特征点位置存放在数据库或图像文件头中，提取时无需原始图像。
The utility model relates to a swinging file sheet mounted on the head of a swinging type micro-power hand machine, which belongs to the surgical instruments of orthopaedics.
本实用新型属于骨科手术器械，特别是涉及一种配置于摆动式微动力手机头的摆动锉片。
The utility model relates to a swinging file sheet mounted on the head of a swinging type micro-power hand machine, which belongs to the surgical instruments of orthopaedics.
本实用新型属于骨科手术器械，特别是涉及一种配置于摆动式微动力手机头的摆动锉片。
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