/* executes a command and returns result */
char* doCommand(char* cmd) {
    FILE* pipe = popen(cmd, "r");
    if (!pipe) {
        printf("Error opening pipe ");
        return "ERROR";
    }

    //fflush(stdout);
    char buffer[128];
    char* result;
    int started = 0;
    char* hold;
    while(fgets(buffer, 128, pipe) != NULL) {

        if (started != 0) {
            hold = mallocCat(result,buffer);
            free(result);
            result = hold;
        }else{
            result = malloc(sizeof(buffer));
            strcpy(result,buffer);
            started = 1;
        }
    }

    if (pclose(pipe) == -256) {

    }
    return result;
}