#include <stdio.h>
#include <sys/types.h>

int executeComm(char com[]);

int main (void) {
    FILE * src;              // file ptr to file to be read from
    char command[8];         // holds command read from file
    int commcount = 0;       // holds number commands executed
    src = fopen("commands","r");
    while(fscanf(src,"%s", command)!=EOF) { // read command from file
        commcount++;
        fprintf(stdout,"Executing command %d: %s ...\n\n", 
            commcount,command);
        my_exec(command); 
        sleep(3);            // pause between commands
    }
    fclose(src);
    fprintf(stdout,"Finished\n");
    return 0;
}

// Execute com by forking a process
int my_exec(char com[]) {
    pid_t pid;

    if ((pid = fork()) == -1) {
        perror("Can't create new process.");
        return -1;
    }  else if (pid == 0) {
        // The NULL is needed, for the system to identify the last argument
        if (execlp(com,com,NULL) == -1) {
          perror("Exec failed.");
          return -1;
        }
    } else {
        fprintf(stdout,"Done, onto the next command...\n");
        return 0;
    }
}