adduser git adduser: Only root may add a user or group to the system.

时间: 2023-11-04 16:20:20 浏览: 167
当你尝试使用"adduser git"命令时，出现了"adduser: Only root may add a user or group to the system"的错误提示。这是因为只有root用户才有权限添加用户或组到系统中。如果你是普通用户，你需要使用root权限来执行该命令。你可以在命令前加上"sudo"来获取root权限，例如"sudo adduser git"。这样，你就可以成功添加用户了。<span class="em">1</span><span class="em">2</span><span class="em">3</span> #### 引用[.reference_title] - *1* [adduser命令 创建用户](https://download.csdn.net/download/weixin_38709312/14889873)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 33.333333333333336%"] - *2* [Git详解之四：服务器上的Git](https://blog.csdn.net/qq446282412/article/details/10329211)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 33.333333333333336%"] - *3* [git(4)服务器上的 Git](https://blog.csdn.net/WANTAWAY314/article/details/115519983)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 33.333333333333336%"] [ .reference_list ]
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adduser.sh: line 5: syntax error near unexpected token then' adduser.sh: line 5: then'

This error occurs when there is a problem with the syntax of the script. In this case, it is likely that there is a missing 'if' statement before the 'then' keyword on line 5. Check the syntax of ...

Action 2: adding a new user to the library. When the user of the software specifies action 2, your program must add a new user to the library. To add a new user, your program needs to ask the user three things: the role of user (an integer read using readPosInt: the integer 1 represents lender, the integer 2 represents borrower, any other integer must result in an error message "Unknown user role!" being printed and the software going immediately back to the main menu), the name of the user (a string read using readLine), and the initial number of books that the user lends (for a lender) or borrows (for a borrower). You program must then create the correct user, add it to the library, and print an information message. The program then goes back to the menu. For example (where 2, 3, 2, 1, Anna, 5, 2, 2, Bob, and 10 are inputs from the user): Type an action (total:1 add:2 get:3 more:4 less:5 quit:6): 2 Type the user role (lender:1 borrower:2): 3 Unknown user role! Type an action (total:1 add:2 get:3 more:4 less:5 quit:6): 2 Type the user role (lender:1 borrower:2): 1 Enter the name of the user: Anna Enter the initial number of borrowed books: 5 Lender "Anna" lending 5 book(s) has been added. Type an action (total:1 add:2 get:3 more:4 less:5 quit:6): 2 Type the user role (lender:1 borrower:2): 2 Enter the name of the user: Bob Enter the initial number of borrowed books: 10 Borrower "Bob" borrowing 10 book(s) has been added. Type an action (total:1 add:2 get:3 more:4 less:5 quit:6): Note that the readPosInt method prevents the initial number of books from being negative, so the constructor for the Borrower class will never throw a NotALenderException when you create a borrower object. Nevertheless the code of the main method of your CLI class must handle this exception by printing the error message "BUG! This must never happen!" and immediately terminating the program using System.exit(1);

System.out.println("Type the user role (lender:1 borrower:2):"); int role = readPosInt(input); // read user's role if (role == 1) { // lender System.out.println("Enter the name of the user:"); ...

adduser git

adduser 是 Linux 和 macOS 系统中的一个命令，通常用于添加新用户到系统中，而 git 是一个版本控制系统，主要用于跟踪软件项目的历史更改。当你需要通过 adduser 命令添加一个新用户并设置 Git 权限时，你...

When the user of the software specifies action 2, your program must add a new user to the library. To add a new user, your program needs to ask the user three things: the role of user (an integer read using readPosInt: the integer 1 represents lender, the integer 2 represents borrower, any other integer must result in an error message "Unknown user role!" being printed and the software going immediately back to the main menu), the name of the user (a string read using readLine), and the initial number of books that the user lends (for a lender) or borrows (for a borrower). You program must then create the correct user, add it to the library, and print an information message. The program then goes back to the menu. For example (where 2, 3, 2, 1, Anna, 5, 2, 2, Bob, and 10 are inputs from the user): Type an action (total:1 add:2 get:3 more:4 less:5 quit:6): 2 Type the user role (lender:1 borrower:2): 3 Unknown user role! Type an action (total:1 add:2 get:3 more:4 less:5 quit:6): 2 Type the user role (lender:1 borrower:2): 1 Enter the name of the user: Anna Enter the initial number of borrowed books: 5 Lender "Anna" lending 5 book(s) has been added. Type an action (total:1 add:2 get:3 more:4 less:5 quit:6): 2 Type the user role (lender:1 borrower:2): 2 Enter the name of the user: Bob Enter the initial number of borrowed books: 10 Borrower "Bob" borrowing 10 book(s) has been added. Type an action (total:1 add:2 get:3 more:4 less:5 quit:6): Note that the readPosInt method prevents the initial number of books from being negative, so the constructor for the Borrower class will never throw a NotALenderException when you create a borrower object. Nevertheless the code of the main method of your CLI class must handle this exception by printing the error message "BUG! This must never happen!" and immediately terminating the program using System.exit(1);

Here is the code implementation for adding a new user to the library based on the given specifications: import java.util.Scanner; public class CLI { private static Library library = new ...

优化这段代码User user=new User(); System.out.print("请输入用户编码："); String userCode=scanner.next(); user.setUserCode(userCode); System.out.print("请输入用户姓名："); String userName=scanner.next(); user.setUserName(userName); System.out.println("请选择角色"); Long userRole=scanner.nextLong(); user.setUserRole(userRole); userService.addUser(user); System.out.println("添加成功");

userService.addUser(user); System.out.println("添加成功"); scanner.close(); 优化的改动包括： 1. 将 Scanner 对象的创建与关闭放在代码块的外部，避免多次创建和关闭 Scanner 对象。 2. 省略了中间...

帮我修改一下我的代码错误：帮我看看我这段代码有什么错误：int choice = readPosInt("Type an action (total:1 add:2 get:3 more:4 less:5 quit:6): "); // Perform the selected action while (choice != 6) { switch (choice) { case 1: System.out.println("Total number of borrowed books: " + Library.totalBorrowedBooks(null)); break; case 2: System.out.print("Type the user role (lender:1 borrower:2): "); int role = readPosInt(null); if (role == 1) { System.out.print("Enter the name of the user: "); String name = readLine(name); System.out.print("Enter the initial number of lent books: "); int numBooks = readPosInt(null); Lender lender = new Lender(name, numBooks); Library.addUser(lender); System.out.println("Lender "" + name + "" lending " + numBooks + " book(s) has been added."); } else if (role == 2) { System.out.print("Enter the name of the user: "); String name = readLine(name); System.out.print("Enter the initial number of borrowed books: "); int numBooks = readPosInt(null); Borrower borrower = new Borrower(name, numBooks); Library.addUser(borrower); System.out.println("Borrower "" + name + "" borrowing " + numBooks + " book(s) has been added."); } else { System.out.println("Unknown user role!"); } break; case 3: System.out.print("Enter the name of the user: "); String username = input.nextLine(); try { int numBorrowed = Library.totalBorrowedBooks(username); System.out.println(username + " borrows " + numBorrowed + " book(s)."); } catch (UnknownUserException e) { System.out.println("User " + username + " unknown."); } break; case 4: try { System.out.print("Enter the name of the user: "); String name = input.nextLine(); System.out.print("Enter the number of books: "); int num = input.nextInt(); input.nextLine(); library.moreBook(username, role); } catch (UnknownUserException e) { System.out.println("User " + username + " unknown."); } break; case 5: System.out.print("Enter the name of the user: "); username = input.next(); System.out.print("Enter the number of books: "); int numBooks = input.nextInt(); library.moreBook(username, -numBooks); // simulate decreasing books break; case 6: System.out.println("Goodbye!"); System.exit(0); break; }

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./adduser.sh: 权限不够

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continue to use Java language, Add a Library class with the following UML specification: +-------------------------------------------+ | Library | +-------------------------------------------+ | - name: String | | - users: ArrayList<IUser> | +-------------------------------------------+ | + Library(String name) | | + addUser(IUser user): void | | + totalBorrowedBooks(): int | | + getBook(String name): int | | + moreBook(String name, int number): void | | + testLibrary(): void | +-------------------------------------------+ When a library is created, it has an arraylist of users (IUser) but the arraylist is empty (the arraylist does not contain any user). The addUser method takes a user (IUser) as argument and adds the user to the arraylist of users for the library. The totalBorrowedBooks method returns as result the total number of books borrowed by all users of the library (the result can be either positive or negative). The getBook method takes as argument the name of a user and returns as result the number of books currently borrowed by the user. If the library does not have a user with the given name, then the getBook method must throw an UnknownUserException with the message "User XXX unknown.", where XXX is replaced with the name of the user. Do not worry about multiple users having the same name. You can assume all user names are unique in the arraylist. The moreBook method takes as argument the name of a user and a number of books and changes the number of books currently borrowed by that user. If the library does not have a user with the given name, then the moreBook method must throw an UnknownUserException with the message "User XXX unknown.", where XXX is replaced with the name of the user. Do not worry about multiple users having the same name. Note: the moreBook method does not catch any exception, it only throws exceptions. Hint: use the equals method to compare strings, not the == operator which only works with constant strings.

The testLibrary method in the Library class creates three users, adds them to the library, and tests the various methods of the library. The main method simply creates a Library object and calls its ...

Add a Library class with the following UML specification: +-------------------------------------------+ | Library | +-------------------------------------------+ | - name: String | | - users: ArrayList | +-------------------------------------------+ | + Library(String name) | | + addUser(IUser user): void | | + totalBorrowedBooks(): int | | + getBook(String name): int | | + moreBook(String name, int number): void | | + testLibrary(): void | +-------------------------------------------+ When a library is created, it has an arraylist of users (IUser) but the arraylist is empty (the arraylist does not contain any user). The addUser method takes a user (IUser) as argument and adds the user to the arraylist of users for the library. The totalBorrowedBooks method returns as result the total number of books borrowed by all users of the library (the result can be either positive or negative). The getBook method takes as argument the name of a user and returns as result the number of books currently borrowed by the user. If the library does not have a user with the given name, then the getBook method must throw an UnknownUserException with the message "User XXX unknown.", where XXX is replaced with the name of the user. Do not worry about multiple users having the same name. You can assume all user names are unique in the arraylist. The moreBook method takes as argument the name of a user and a number of books and changes the number of books currently borrowed by that user. If the library does not have a user with the given name, then the moreBook method must throw an UnknownUserException with the message "User XXX unknown.", where XXX is replaced with the name of the user. Do not worry about multiple users having the same name. Note: the moreBook method does not catch any exception, it only throws exceptions. Hint: use the equals method to compare strings, not the == operator which only works with constant strings. 写java文件

users.add(user); } public int totalBorrowedBooks() { int total = 0; for (IUser user : users) { total += user.getBorrowedBooks(); } return total; } public int getBook(String name) throws ...

Second, the Library class is the class that contains all the data for the library. Therefore the Library class plays the role of the model. Therefore the Library class needs to keep an arraylist of model listeners that need to be notified every time the library (the model) changes. 1. Add to the Library class an private instance variable, an arraylist of ModelListener. When a library is created, it has an empty arraylist of listeners. 2. Also add to the Library class an addListener method that takes a ModelListener as argument and adds it to the arraylist of listeners. 3. Also add to the Library class a private notifyListeners method that takes nothing as argument and calls the update method of all the listeners of the library. 4. Then change the addUser and moreBook methods so that they call the notifyListeners every time a change is made to the library's data (only the addUser and moreBook methods change the library’s data, so only these two methods need to call the notifyListeners method; the totalBorrowedBooks and getBook methods do not change the library’s data, they only inspect the data, so they do not need to call the notifyListeners method).

We also modified the addUser and moreBook methods to call notifyListeners after adding a new user or book to the corresponding list. Note that we didn't change the totalBorrowedBooks and ...

Also create a ControllerCreate class that extends Controller.The create method takes as arguments the name of a new library user, a number of books (as a string), and an integer representing the role of user to create (where the integer 0 means a lender and the integer 1 means a borrower). The create method of the controller then transforms the book number from a string to an integer (using the Integer.parseInt static method), creates an object from the correct class (based on the role specified by the user input: lender or borrower) and calls the addUser method of the library to add the new user object to the library. • If no exception occurs then the create method of the controller returns the empty string. • If the constructor of the Borrower class throws a NotALenderException then the create method of the controller must catch this exception and return as result the error message from the exception object. • If the parseInt method of the Integer class throws a NumberFormatException (because the user typed something which is not an integer) then the create method of the controller must catch this exception and return as result the error message from the exception object. 完成符合以上要求的java代码

library.addUser(user); return ""; } catch (NumberFormatException e) { return e.getMessage(); } catch (NotALenderException e) { return e.getMessage(); } } } 在这个类中，我们定义了一个名为 ...

useradd adduser 软连接useradd: Permission denied. useradd：无法锁定 /etc/passwd，请稍后再试。

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org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.imnu.mapper.UserMapper.addUser

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@RequestMapping("/adminAdd") public String adminadd(Model model){ return "syspage/admin-add"; }和 @RequestMapping("addUser") public String add(User user,long[] roleIds){ Date date = new Date(System.currentTimeMillis()); User u = new User(); u.setName(user.getName()); u.setLasttime(date); u.setPassword(user.getPassword()); u.setStatus(1); u.setAddress(user.getAddress()); u.setPhone(user.getPhone()); userService.add(u); return " redirect:listUser"; }的关系

第二段代码 @RequestMapping("addUser") 也是一个Controller中的请求映射方法，用于处理/addUser路径的请求。它接受一个User对象和一个long类型的数组作为参数，然后将参数中的数据存储到数据库中，并重定向到/...

Also create a ControllerMoreBook class that extends Controller.The moreBook method takes the name of a user and a number of books (as a string) as arguments. The moreBook method of the controller then transforms the number of books from a string to an integer (using the Integer.parseInt static method) and calls the moreBook method of the library to increase the number of books borrowed or lent by the user (depending on what kind of user it is) of a specific user, by the given argument. • If no exception occurs then the moreBook method of the controller returns the empty string. • If the moreBook method of the library throws an UnknownUserException then the moreBook method of the controller must catch this exception and return as result the error message from the exception object. • If the moreBook method of the library throws a NotALenderException then the moreBook method of the controller must catch this exception and return as result the error message from the exception object. • If the parseInt method of the Integer class throws a NumberFormatException (because the user typed something which is not an integer) then the moreBook method of the controller must catch this exception and return as result the error message from the exception object. Note: to keep things simple, it is allowed for a user of your system to increase the number of books of a user by a negative number, so there is no need to check for that. Modify the run method of the GUI class to add a ViewMoreBook view that uses a ControllerMoreBook controller and the same model as before (not a new model!) Do not delete the previous views. Run your GUI and check that you can correctly use the new view to increase the number of books for different users of your library (obviously your library must have some users in it to test this: see the last paragraph of Question 7). • Check that, when you increase a user’s book, the simple view is automatically correctly updated to show the new total number of borrowed books for all users of the library. • Also use the “get book” view to check that the user’s book value correctly changed. • Also check that increasing the book number of an unknown user correctly shows an error message.Also check that increasing the book of a user by a large negative number correctly shows an error message. Also check that trying to increase the book of a user by a number which is not an integer correctly shows an error message (do not worry about the content of the error message). 完成符合以上要求的java代码

public void addUser(User user) { users.put(user.getName(), user); } public void moreBook(String name, int num) throws UnknownUserException, NotALenderException { User user = users.get(name); if...
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