Linux C Programs Get directory information (16)

4. Get the current directory
GETCWD will copy the current working directory absolute path to the memory space referred to by the parameter buf
5. Set up working directory
ChDir
6. Get directory information
Opendir Open a Directory
Readdir Reads directory entry information from the contents of a directory, returns a struct dirent struct pointer
Closedir Close an Open Directory


Implementing the LS command-l-a
Implementation process:
1. Get the total number of files and the longest file name in this directory
2. Get all the file names in this directory and store them in filenames
3. Use the bubbling method to sort the files alphabetically, sorted and stored in filename
4. Call display (Intflag,char *filename) to show each file information

Code to be implemented ...

Linux C Programs Get directory information (16)