Introduction - If you have any usage issues, please Google them yourself
Ordinary files and directories programming. Program mycp.c copy function that reads files from the command line with the original file system calls. 2. Write programs mycat.c, and display the contents of the file, the original file system call implementation. 3, with the stream file system function to re-write the above program. Call directory function, write program myls.c, and display the current directory file list in the following format: file name, file size of the file creation time attention to studying the conversion of the file creation time, that is how the number of seconds since January 1, 1970 converted to a string that represents the time to show up, pay attention to the research asctime () function ctime () function usage.