How to write to a text file

The first two examples use static convenience methods on the System. The third example shows how to add text to a file when you have to process each line individually as you write to the file. In the first three examples, you overwrite all existing content in the file. The final example shows how to append text to an existing file. These examples all write string literals to files. If you want to format text written to a file, use the Format method or C string interpolation feature.

Awaits a call to File. WriteAllLinesAsync which:. You can edit the file in the Notepad program or any other word processing software program, like Microsoft Word. These same steps can be used in any other location on your computer, for example, another folder. While in the Windows command line , you also can create a new text file in the current directory. With earlier versions of Windows, a new file of any type, including text files, could be created using the edit command line command.

Later versions of Windows removed the ability to use the edit command for this purpose. Instead, you can use the echo command at the Windows command line to create an empty text file in the current directory. An example of using this shown below. In the example above, you are using the echo command to create a file named "myfile. Another option for creating a text file from the command line is with the start command , as shown in the example below.

In this example, you are using the start command to open Notepad with the file "myfile. Assuming this file does not exist, it would be created and saved in your current directory. If the file did exist, you would be editing that file. Several commands can create a text file in a Linux shell. One easy-to-use text editor is pico. You can use it like this:. After entering the command above, the editor opens and allows you to create a text file.

Below, you can find the full sample code I prepared, for showcasing a simple example of writing an array of 10 strings into a text file. Rate this article: 3 votes, average: 5. He has over 15 years of experience in the IT industry in various roles.

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