Store tokens in dynamic C array

Question

I am developing a console application that works as a shell (using processes to process commands sent via stdin). Entering the command to process with fgets(command, 1024, stdin) saves the whole command and wanted to split the string into several strings separated by spaces (save the different arguments of the command). When making a while(argument != null) cycle I wanted to save each argument to an auxiliary vector. How do I create a dynamic vector and within the cycle assign the value of the argument to the position n of the vector (in light ascending order)? Below I have the code I’m using for the intended.

    char *command = malloc(MAX_COMMAND_SIZE);
    int arg_counter = 0;

    char **command_args;

    fgets(command, MAX_COMMAND_SIZE, stdin);

    char *command_arg = strtok(command, DELIM);

    while(command_arg != NULL)
    {
        printf("arg %d: %s\n", arg_counter, command_arg);

        strcpy(command_args[arg_counter], command_arg);

        arg_counter++;

        command_arg = strtok(NULL, DELIM);
    }

Notes:

MAX_COMMAND_SIZE = 1024

Thanks for the help