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Change the line ending of a file in VS Code

Line endings, also known as newline characters, signify the end of a line of text. They might seem insignificant, but they play a crucial role in ensuring our files are accurately interpreted and processed.

One of the biggest places where this impacts us is when talking about cross-platform compatibility. Different operating systems interpret line endings differently. A file created on Windows might not display correctly on Unix systems without the proper line ending conversion.

This is because on Windows we use Carriage Return + Line Feed (CRLF or \r\n) whereas on Unix/Linux/MacOS: Line Feed (LF or \n) is used.

I got into trouble with line endings when trying to run a docker image. Instead of running the image as expected, I got a “file not found” error for a specific file.

After some investigation, I found out that the root cause was indeed the used line ending. After changing it and rebuilding the docker image I was finally able to run it successfully.

In VS Code, you can see the line ending used in the status bar at the bottom:

Change the line ending through VS Code

To change the line ending, you can click on the current line ending in the status bar and choose a different line ending

 

Don’t forget to save the changed file afterwards.

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