类似系统shell功能的源代码,包括前后台调度,特殊字符的识别,多重管道的编写-Shell functions similar system source code, including the front and back movements and special character recognition, the preparation of multiple channels

光学字符识别（即OCR）技术。给出了一些基于linux/KDE的英文OCR代码，该代码对于如何实现一个OCR系统有很好的启发性。-Optical character recognition (ie OCR) technology. Gives some based on linux/KDE English OCR code, the code for how to achieve an OCR system is a good instructive.