How to write a computer operation with dos commands

DOS command, it can't be, it's vb.

@echo off

set p num1=Please enter the first digit:

set p num2=Please enter the second number:

set /a sum=num1+num2

echo %num1% +num2% = %sum%

Use the set command to implement the dos.

set /a 3*2-1

The effect is as follows. C: Users shg> set a 3*2-15 This ** was tested successfully under Win7.

To be easy to understand, words like this-

set /a a=3

set /a b=2

set /a c=1

set /a d=%a%*%b%-%c%echo %d%

pause>nul

That's it for direct operations

set /a a=3*2-1

echo %a%

pause>nul

Anyway, I don't think the @hide command in front of me is needless to say, and the echo in the back is the final result, and if you remove the @, you can see every step in detail. Also, pause can be done or not - if it's in the DOS interface.

There is no such order under the DOS.

For example:

Change the computer name to 123 abc

wmic computersystem where “name=’abc’” call rename 123

Change the workgroup to mygroupwmic computersystem where "name='workgroup'" call joindomainorworkgroup """.",”mygroup”,1

Do you mean that you just type 1+2 and enter and you get 3?

**As follows: import;

public class test}

Isn't it a string that was entered?

Extracting from the string and then calculating, is that possible?

This formula needs to be judged before it is calculated, because it is a numerical calculation, so it can only include the characters of numbers and transporters......

Just press the switch directly under pure DOS.

Under Windows, using the Command Prompt, enter the command:

shutdown -s

shutdown -r

shutdown -l (logout).

shutdown -a (unshutdown).

Note: You can also bring -t (for delayed shutdown, t followed by the number of times, 0 for immediate shutdown), and -c (followed by a quoted string, which is actually the description of the text).

Under pure DOS, you can directly press the reset button on the host to restart.

Hold down the three keys Ctrl+Alt+Delete.

Let's take a look at the commonly used dos commands for hackers, how many will you have? - Vulnerability knowledge base.

Dizzy, misunderstood. First you have to log in to the system as an administrator, and then you run all files as an administrator. It's not that you write something in bat and then use the guest user to run it as an administrator.

The general cd command and dir p w command can basically complete the daily DoS operation.

These two commands, one is equivalent to double-clicking under windows to enter the specified folder, and the other is equivalent to viewing the directory under the folder, mastering the two commands of copy and pause, through ? Check out the commands that will allow you to quickly learn DOS

DOS commands are rarely used these days, unless you want to be a professional.

Otherwise, there is no need to deliberately learn, the purpose of the existence of windows is to make everyone live simply, work simply, why do people always like to complicate some simple things.

1. The dos command is a command of the DOS operating system, which is a disk-oriented operation command, mainly including directory operation commands, disk operation commands, file operation commands and other commands.

2. Common commands:

1) View directory contents command dir

3) Create directory command md

4) Open the specified directory command cd

5) Delete the currently specified subdirectory command rd

6) Change the current drive letter command c:

7) File copy command

8) Display text file content command type

9) Change the file name command ren

10) Delete file command del

11) Clear the on-screen command cls

net user user password add

.net localgroup administrator user add

The first line creates the user and the second line changes the permission.

Write a random program and add it to the command directory.

Zero-based hacker series tutorial dos:010 Use the md command to create a directory.

With MSTSC

Check out Command Help.

Command: C: mstsc

If the other party wants to open port 3389 and remote desktop services, it is recommended that you use the remote assistance that comes with the system.

My computer right--Properties--Remote--Hit the groove on the left side of the remote--OK.

If you want to enter someone else's computer by relying on dos commands alone, you can only go to his computer, and if you want to remotely control someone else's computer, there is a simple tool, and you can hit the gray pigeon or the upswing. This is one of the more well-known hacker addresses.

telnet

But you have to be open to you for a certain service.

N years ago, DR-DOS had corresponding network functions, while MS-DOS did not.