code:
#include <stdio.h>
#include <dirent.h>
int main(int argc, char *argv[]) {
	DIR *dir = opendir(argv[1]);
	struct dirent *entry = readdir(dir);
	while ((entry = readdir(dir)) != NULL) {
        	printf("%s\n", entry->d_name);
	}
	closedir(dir);
}

output:
Desktop
Templates
Videos
.bash_logout
.local
.
becomeEliteLinuxUser
.cache
..
Pictures
.mozilla
Music
Downloads
.face.icon
.profile
.config
Documents
Public
.face
.bash_history
.var