Intellij editor using \r\n as line break. How to set it using \n only?

I didn't find a setting for this. Source code is fine. But for some shell, \r\n will not work.

How do I format multiple lines in IntelliJ?

You can reformat line indents based on the specified settings. While in the editor, select the necessary code fragment and press Ctrl+Alt+I . If you need to adjust indentation settings, in the Settings/Preferences dialog ( Ctrl+Alt+S ), go to Editor | Code Style.

How do I set line length in IntelliJ?

To configure the line length, open settings Ctrl+Alt+S , navigate to Editor | Code Style, and type the necessary length in the Hard wrap at N columns field. Wrap if long: break a section of text into lines so that each line fits the configured line length.

Default separator can be changed in the code style settings:

line separator