# Edit this file to introduce tasks to be run by cron. # # Each task to run has to be defined through a single line # indicating with different fields when the task will be run # and what command to run for the task # # To define the time you can provide concrete values for # minute (m), hour (h), day of month (dom), month (mon), # and day of week (dow) or use '*' in these fields (for 'any').# # Notice that tasks will be started based on the cron's system # daemon's notion of time and timezones. # # Output of the crontab jobs (including errors) is sent through # email to the user the crontab file belongs to (unless redirected). # # For example, you can run a backup of all your user accounts # at 5 a.m every week with: # 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/ # # For more information see the manual pages of crontab(5) and cron(8) # # m h dom mon dow command ^G Get Help ^O Write Out ^W Where Is ^K Cut Text ^J Justify ^C Cur Pos M-U Undo M-A Mark Text ^X Exit ^R Read File ^\ Replace ^U Uncut Text ^T To Spell ^_ Go To Line M-E Redo M-6 Copy Text这样的界面我要怎么输出啊

这是一个 crontab 文件的示例，它包含了一些注释和示例命令，用于说明如何定义 cron 任务。如果你想编辑该文件，可以使用以下命令：

crontab -e

该命令会打开一个文本编辑器，让你编辑当前用户的 crontab 文件。在编辑器中，你可以添加、修改或删除 cron 任务，然后保存文件并退出编辑器。

如果你只是想查看当前用户的 crontab 文件，可以使用以下命令：

crontab -l

该命令会将当前用户的 crontab 文件输出到终端。

相关问题

GNU nano 2.9.3 /tmp/crontab.afdNF3/crontab # Edit this file to introduce tasks to be run by cron. # # Each task to run has to be defined through a single line # indicating with different fields when the task will be run # and what command to run for the task # # To define the time you can provide concrete values for # minute (m), hour (h), day of month (dom), month (mon), # and day of week (dow) or use '*' in these fields (for 'any').# # Notice that tasks will be started based on the cron's system # daemon's notion of time and timezones. # # Output of the crontab jobs (including errors) is sent through # email to the user the crontab file belongs to (unless redirected). # # For example, you can run a backup of all your user accounts # at 5 a.m every week with: # 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/ # # For more information see the manual pages of crontab(5) and cron(8) # # m h dom mon dow command 0 12 * * * /home/sjt/work/date/0605/log.sh为哈就是一直卡在这里

看起来你正在编辑一个 crontab 文件，这个文件中包含了定时任务的配置信息。你想要添加一个定时任务，让 `/home/sjt/work/date/0605/log.sh` 脚本每天中午 12 点执行一次。

根据 crontab 文件的格式，你可以在文件中添加以下一行来实现：

0 12 * * * /home/sjt/work/date/0605/log.sh

这行中的五个时间字段 `0 12 * * *` 分别表示分钟、小时、月中的天、月份、周中的天。`*` 表示任意值，因此这行的含义就是每天中午 12 点执行一次 `/home/sjt/work/date/0605/log.sh` 脚本。

完成修改后，保存并退出 crontab 文件即可。

Refactor the Code Population Generator In the lecture, we created the Animal class for FoxesAndRabbits. If you are looking at this coursework before we had this lecture, you can compare the code in the Coursework repository with the code in the Live Sessions repository. Also, note the changes made to the simulateOneStep method in Simulator.java: By introducing the Animal superclass, we have removed the dependencies (couplings) of the simulateOneStep method and the Fox and Rabbit class. The Simulator class, however, is still coupled to Fox and Rabbit in the populate method. Your task is to further improve FoxesAndRabbits by introducing a new class PopulationGenerator and move the populate method from the Simulator.java into this new class. You might also have to move some of the variables and fix the resulting errors in other classes to now use the PopulationGenerator instead. Now only the PopulationGenerator should be coupled to the concrete animal classes (Fox and Rabbit), making it easier to find places where changes are necessary when the application is extended. The PopulationGenerator should be called in Simulator.java. (Created new class: 0.5P, Moved method to new class: 0.5P, Simulator is using new class without errors: 1P) Introduce New Animals Define a new type of animal

Thank you for your question! Here's an example of how the PopulationGenerator class could be implemented:

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class PopulationGenerator {
    private final int width;
    private final int height;
    private final Random random;
    private final List<Animal> animals;

    public PopulationGenerator(int width, int height) {
        this.width = width;
        this.height = height;
        this.random = new Random();
        this.animals = new ArrayList<>();
    }

    public void populate(int foxes, int rabbits, int newAnimalType) {
        for (int i = 0; i < foxes; i++) {
            Location location = new Location(random.nextInt(width), random.nextInt(height));
            Fox fox = new Fox(true, location);
            animals.add(fox);
        }
        for (int i = 0; i < rabbits; i++) {
            Location location = new Location(random.nextInt(width), random.nextInt(height));
            Rabbit rabbit = new Rabbit(true, location);
            animals.add(rabbit);
        }
        for (int i = 0; i < newAnimalType; i++) {
            Location location = new Location(random.nextInt(width), random.nextInt(height));
            NewAnimal newAnimal = new NewAnimal(true, location);
            animals.add(newAnimal);
        }
    }

    public List<Animal> getAnimals() {
        return animals;
    }
}

This class takes in the width and height of the field as constructor arguments and has a `populate` method that creates a specified number of Foxes, Rabbits, and a new type of animal called `NewAnimal`. The `NewAnimal` class would need to be implemented separately with its own behavior.

To use this class in the Simulator, we can create an instance of `PopulationGenerator` and call its `populate` method with the appropriate arguments:

PopulationGenerator populationGenerator = new PopulationGenerator(FIELD_WIDTH, FIELD_HEIGHT);
populationGenerator.populate(NUM_FOXES, NUM_RABBITS, NUM_NEW_ANIMALS);
List<Animal> animals = populationGenerator.getAnimals();
Simulator simulator = new Simulator(FIELD_WIDTH, FIELD_HEIGHT, animals);

This way, the Simulator class no longer needs to know about the specific animal classes being used, only the `Animal` superclass.