GCC referrence book，共两部分，主要讲GCC编译器的使用。

linux 下实现信号处理，管道设计通信-linux achieve signal processing, pipeline design communications

标准c++的学习源代码。还有uc代码 15天c++学习代码和4天unix c学习代码 使用gcc编译器，solaris环境，完全通过编译，源自达内科技学习笔记-Standard c++ Learning the source code. Uc code there are 15 days c++ Learning code and four days to learn unix c code using gcc compiler, solaris environment, completely through the compiler, derived from scientific and technological study notes Tatsu

邮政电信等系统票据的精确定位打印，可根据不同的打印机进行调整-postal and telecommunications system instruments precise positioning print, according to different printers adjustment

ucos在78e58上移植的例子，经过测试通过，希望大家交流呀，共享源码-CENTER 78e58 on the transplant example, the test passed, let us exchange it, sharing source code!

此程序完 成任意一个英文文本文件中英文单词的统 计工作。要求：把英文单词出现频率次数 由高到低打印出来；只要英文单词形式不 一样就算两个词，不考虑词语的复数时 态。-this procedure completed an arbitrary text in English English word document statistics. Requirements : English word frequency from high to low frequency printed; As long as English is not the same form of words even if the two words, not consider the words in the plural tense.

在Linux测试sleep函数是否对其它进程阻塞-Linux sleep function tests whether the other process obstruction

linux默认情况下，Linux可以使用6个虚拟控制台来登录本地Linux (本地终端) 系统，当然，这个设置是可以修改的(修改文件/etc/inittab)。每一个虚拟控制台允许让一个用户登录，我们可以使用 ALT+Fn(n=1,2,3,4,5,6)来登录或者是切换到某个虚拟控制台，它们分别对应tty1到tty6虚拟终端。-linux by default, Linux can use 6 virtual consoles to log in local Linux (local terminal) system, of course, this setting can be amended (to modify the file/etc/inittab). Each virtual console to allow a user log, we can use ALT+ Fn (n = 1,2,3,4,5,6) to log in or switch to a virtual console, tty1 they correspond to tty6 virtual terminal.

在LINUX系统下实现PV操作的算法，课程设计时编写的，能够成功运行-LINUX system in the implementation of the algorithm for PV operation, the preparation of curriculum design and be able to run successfully

在Linux环境下，用C语言实现哲学家进程问题。-the Linux environment, using C language philosopher process.

linux内存管理机制的实现-memory management mechanisms to achieve