Use command prompt in windows

The following command creates a backup copy of our HelloWorld. This is especially useful when you modify a working program, but might want to revert back to the original version if your modifications don't succeed. The del command deletes a file. When you submit your program be careful to submit HelloWorld. It copies them to your newly created loops directory.

Redirection Two important abstractions in Command Prompt are standard input and standard output. By default standard input is your keyboard, and standard output is your computer screen. For example, in Assignment 1, we write a program CenterofMass.

To run our program, the user types the command " java CenterofMass " and enters double type values in triplets: xposition yposition mass from the keyboard. The results appear in the terminal window. As an alternative, we can create a file that consists of the same six input numbers. Using a text editor like jEdit , create a file named input. This produces exactly the same result as if the user had typed the numbers, except that the user has no opportunity to enter numbers from the keyboard.

This is especially useful for two reasons. First, if there are lots of input values there are over inputs for Assignment 2 it would be tedious to retype them in each time we run our program. Second, it allows programs to be automated, without waiting for user interaction.

It will remove all the manufacturer-installed bloatware and add your own desktop programs to your recovery image. In the Windows system, there are hundreds of files which are designed to open in a particular program and contains different extensions.

But as the number is quite high then it becomes very difficult to remember all of the files associations. But as Windows has provided solution to ever problem then so, this issue also has a quick solution and that is Assoc command. You can get detail about each file type, their extensions, and program associations. This command is very useful for the people who are involved in writing and programming profession. File compare command helps you to compare the texts of two different files.

It tells you the difference between the text of two version of files. For using this command simply type fc, directory path and then the names of the files which you want to compare. Always remember not to compare more than two files at once. If you want to customize the power usage of your system then Powercfg command is all you need to have.

This command provides you the access to the power options provided by the Windows. Simply type powercfg. The tasklist is the another cmd command which enables you to perform one important function which is displaying the list of all the programs running on your system at that time.

But you will say that you can also achieve this just by opening the task manager then let me tell you that tasklist command also shows you the tasks which are hidden from the task manager. This command prompt hack is great in terms of security. Most of the keyloggers or malware run in the background and stay hidden from the task manager. Tasklist also provides you different modifiers such as tasklist -m show you the location of. If you want to access the hierarchical database of the operating system which is Windows Registry to get details about all the settings and configuration of the operating system and the installed programs in it.

You only need to type Regedit in the command prompt window and hit enter. Taskkill is a great command prompt command that helps you to kill a particular task. The good thing is that you can even kill those tasks which are hidden from the task manager and those which are unresponsive etc. To kill a task using Taskkill command you need to type taskkill -im and then type the name of that task and hit enter.

If you want to get information about each and every driver installed in your system at once then you can use driverquery command for the same. It is a quick and the easiest method for doing the same. Also, you will not have to check the drivers by using any third-party application as this two steps method is enough to do the wonders. With the help of this command, you can create undeletable folders. For creating such folder you need to run a command which is md con in the command prompt.

The folder will be created at the very moment with the same name. We need telnet command when we want to communicate with a remote computer. But telnet never gets installed by default and you have to manually install it. So, after installing it on your server you will need to connect to the telnet server which can be only done by telnet command. IPathping is the advanced version of the ping command which provides you to check and troubleshoot the problems occurring in connecting to a site.

It is quite helpful for you if there are multiple routers connected to your system and the device you want to check. Pathping also provides you some details about the routes of the packets which you can get from the ping command. If you want to get some details about the all the network connected to your system then netstat is the most useful command for this purpose.

Netstate provides you many subcommands that can be used for different purposes. And for getting the details about the networks, we use the netstat-an command. It will show you a complete list of networks with their local and foreign IP addresses.

This command will help you a lot if you are facing some issues with your Windows file system. It scans each and every file of Windows file system and checks if there is any problem or issue in a particular file. There are several ways to open Command Prompt , but the "normal" method is via the Command Prompt shortcut located in the Start menu or on the Apps screen, depending on your version of Windows.

The shortcut is faster for most people, but another way to access Command Prompt is via the cmd Run command. You can also open cmd. However, you might see PowerShell there instead of Command Prompt depending on how your computer is set up.

Many commands can only be executed if you're running the Command Prompt as an administrator. To use Command Prompt, you enter a valid Command Prompt command along with any optional parameters. Command Prompt then executes the command as entered and performs the task or function it's designed to perform in Windows. For example, executing the following Command Prompt command in your Downloads folder would remove all MP3s from that folder:.

Commands must be entered into Command Prompt exactly. The wrong syntax or a misspelling could cause the command to fail or worse; it could execute the wrong command or the right command in the wrong way. A comfort level with reading command syntax is recommended. For example, executing the dir command will show a list of files and folders that exist at any specific location on the computer, but it doesn't actually do anything. However, change just a couple letters and it turns into the del command, which is how you delete files from Command Prompt!

Syntax is so important that with some commands, especially the delete command, adding even a single space can mean deleting entirely different data. Here's an example where the space in the command breaks the line into two sections, essentially creating two commands where the files in the root folder files are deleted instead of the files in the subfolder music :.

The proper way to execute that command so as to remove files from the music folder instead is to remove the space so that the whole command is strung together correctly. Don't let this scare you away from using Command Prompt commands, but definitely let it make you cautious. A large number of commands exist in Command Prompt, but command availability varies across Microsoft Operating Systems. Command Prompts for Windows Operating Systems:. There are lots and lots of commands you can use in Command Prompt, but not all of them are used as often as others.