这是一个linux的ls编程，对文件和目录进行操作。谢谢大家。-This is a linux of ls programming, of files and directories to operate. Thank you.

最小二乘辨识系统模型参数的算法，可以用于辨识离散模型的参数-Least squares algorithm for model parameter identification system can be used to identify the parameters of the discrete model

linux下ls命令的实现，可以实现ls命令，已经后面加-a，-l，-i的命令。-Under the realization of the command ls Linux, can realize the ls, has ordered added-a,-l,-I command.

用C语言实现linux的ls命令，可选参数包括d,l,R,i,a，格式为my_ls [Option]...[Filepath]-Linux using C language implementation of the ls command, optional parameters, including d, l, R, i, a, format my_ls [Option] ... [Filepath] ...