Learn Linux Command Line

/* When compiled the program should be saved as execute_me
 *
 * This program teaches the linux command line by having
 * the user move and copy the file among other things.
 *
 * Public Domain - Tnelsond 2011 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main(int argc, char * argv[])
{
    if(!strcmp(*argv, "./execute_me"))
        puts("Ok, so you've executed this program.\nNow change it's name to \"icanchangenames\" by typing: \"mv execute_me icanchangenames\" (without the quotes).\nThe first word after mv (move) is the source and the last one is the destination.\nSo the file gets moved from execute_me to icanchangenames.");
    else if(!strcmp(*argv, "./icanchangenames"))
    {
        FILE *fp = fopen("execute_me", "r");
        if(fp == NULL)
            puts("Great, so you can change names,\nBut can you copy this file and call the copy \"copied\"\n(Hint: use the cp (copy) command)");
        else
            puts("That other file is still there, you didn't move it, you copied!");
    }
    else if(!strcmp(*argv, "./copied"))
    {
        FILE *fp = fopen("icanchangenames", "r");
        if(fp == NULL)
            puts("You didn't copy! You just moved the file");
        else
            puts("So you copied.\nNow mv copied to copied2 and delete the other file.\nDelete the other file using the rm command.\nBut be careful, use rm -i to allow you to confirm deletes.");
    }
    else if(!strcmp(*argv, "./copied2"))
    {
        FILE *fp = fopen("icanchangenames", "r");
        if(fp == NULL)
        {
            puts("Did you delete that other file? (y/n)");
            if(getchar() == 'y')
                puts("Ok, I believe you.\nNow change the name of this file to x.");
            else
                puts("I appreciate your honesty.");
        }
        else
            puts("That other file is still there!");

    }
    else if(!strcmp(*argv, "./x"))
    {
        int x;
        FILE *fp;
        fp = fopen("x", "r");
        fseek(fp, 0, SEEK_END);
        puts("What is the size of this file in bytes?\n(Hint: du -b\nif you don't include the filename of the thing to be measured it will show the size of the whole folder)");
        scanf("%d", &x);
        if(x == ftell(fp))
            puts("Either you are a good guesser or you actually used the command.\nOk, now make a new folder and call it HeLLo. (Use the mkdir command, mkdir is short for make directory).");
        else
            puts("Wrong! Try again");
    }
    else
        puts("Are you sure you spelled everything correctly?\n(Unix-like systems are case sensitive.)");

    return 0;
}