Linux终端文件打开

Question

This is some code that I wrote but I am confused to how to run it with linux terminal. I tried writing like this: asdasd:~/folder/file>./main.c file.txt but I just keep getting permission denied. Do I need some other program to run this with? I hope I gave enough information to get some kind of feedback

(file.txt is the file I am trying to start the program with)

...........
void fileReader(int number, char *vector[])
{
    if(number!= 2)
    {
        printf("File: %s filename\n", vector[0]);
        exit(1);
    }
    FILE *file = fopen(vector[1], "r");
    if(file == 0)
    {
        printf("File cannot be opened\n");
        exit(1);
    }
..........
........

Answer 1

You have to compile the program.

You do that with

gcc main.c -o program

Then you start it with:

./program file.txt

Answer 2

depending on which Linux OS you're running with (MAC already has this pre installed), just go to the terminal, and change the path to the folder where your program is. then do gcc main.c -(any file name that you want, you can even just name this 'main'). then you can just type main, and it'll run your program for you.