实现任务管理器的功能！模拟windows的任务管理器！

写一个脚本文件checkuser,该脚本运行时带一个用户名作为参数，具体要求如下： 1)如果命令行格式不符合要求，应有错误提示信息； 2)在/etc/passwd文件中查找是否有该用户， 如有，则输出“Found in the /etc/passwd file.” 否则，输出“No such on our system” -Write a script file checkuser, the script run-time with a user name as a parameter, and specific requirements are as follows: 1) If the command-line format does not meet the requirements, there should be error message 2) in/etc/passwd file to check if there were any users, and if so, then the output " Found in the/etc/passwd file. " Otherwise, output" No such on our system "

gcc编译器在linux下通过，cs源代码客户端服务器通信，实现了简单的文本传输，了解socket读取的全过程，绝对可以原创，欢迎大家多多支持。

基于DSP的图像边缘提取的实现，多多交流-DSP-based Image Edge Extraction realized, interact more! !

linux下发送mail源代码，可以直接移植到开发板上用。-linux send mail source code, can be directly transplanted to the development of on-board use.

linux 块设备.学习linux块设备的好东东。-linux

Advanced BASH (unix/linux shell scripting language) scripting guide.

最新电子收下载,嵌入式系统的微模块化程序设计：实用状态图C_C++实现(4),状态机相关-latest electronic download, embedded systems micro- modular program design : Practical state diagram C_C achieve (4), the state-associated

tcp/ip客户端测试源码-tcp/ip client test source.

一本很好关于Linux的资料，能很好的提高这相关知识-A very good information about Linux can be a very good knowledge of this improve

典型的linux驱动程序，配合书上更好！ 看了之后就会编驱动了-Typical linux driver better with books! Will be made after the driver saw the