T2.c

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>

int main(int argc, char * argv[]) {

    if (argc < 3) {
        printf("Usage ./T2.o folder_path link_name\n");
    }

    char* folder_path = argv[1];
    char* link = argv[2];

    // Creating folder if it doesn't exist:
	mkdir(folder_path, 0777);
    if (errno != 0) {
        fprintf(stderr, "cannot create directory '%s': ", folder_path);
        switch (errno) {
            case 13:
                fprintf(stderr, "Permission denied.\n");
                break;
            case 17:
                fprintf(stderr, "File exists.\n");
                break;
            default:
                fprintf(stderr, "Unknown error.\n");
        }
    }
    else {
        // Creating link if folder creation is successful:
        symlink(folder_path, link);
        if (errno != 0) {
            fprintf(stderr, "cannot create symlink '%s' to '%s': ", link, folder_path);
            switch (errno) {
                case 13:
                    fprintf(stderr, "Permission denied.\n");
                    break;
                case 17:
                    fprintf(stderr, "File exists.\n");
                    break;
                default:
                    fprintf(stderr, "Unknown error.\n");
            }
        }
    }

    return 0;
}