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Open any text file and click on the pilcrow (¶) button. Notepad++ will show all of the characters with newline characters in either the CR and LF format. If it is a Windows EOL encoded file, the newline characters of CR LF will appear (\r\n). If the file is UNIX or Mac EOL encoded, then it will only show LF (\n).
The Quick FixAt the bottom right of the screen in VS Code there is a little button that says “LF” or “CRLF”: Click that button and change it to your preference. Voila, the file you are editing now has the correct line breaks.
First off, within Notepad ++ to see the end of line markers, you need to indicate you want to see them. Click on View > Show Symbol > then either Show End of Line, or Show All Characters if you want to see spaces and tabs, sometimes the second option is easier).
Open the file and enable Show line endings. CRLF line endings are displayed with ¶ and LF line endings with ¬. A carriage return without a line-feed is not interpreted in this mode as line ending. The carriage return is interpreted as normal character which means it is displayed according to used font.
To disagree with the official answer:
:set list will not show ^M characters (CRs). Supplying the -b option to vi/Vim will work. Or, once Vim is loaded, type :e ++ff=unix.
Assuming your vim settings for :set listchars=... is set to visualize the characters you are attempting to see, in this case the carriage return characters (typed with CTL + V, CTRM + M) —— otherwise, as reported in many of the comments on this answer, the ^M character will not show on :set list
:set list in Vim will show whitespace. End of lines show as '$' and carriage returns usually show as '^M'.
vi shows newlines (LF character, code x0A) by showing the subsequent text on the next line.
Use the -b switch for binary mode. For example , vi -b filename or vim -b filename --.
It will then show CR characters (x0D), which are not normally used in Unix style files, as the characters ^M.
Just to clarify why :set list won't show CR's as ^M without e ++ff=unix and why :set list has nothing to do with ^M's.
Internally when Vim reads a file into its buffer, it replaces all line-ending characters with its own representation (let's call it $'s). To determine what characters should be removed, it firstly detects in what format line endings are stored in a file. If there are only CRLF '\r\n' or only CR '\r' or only LF '\n' line-ending characters, then the 'fileformat' is set to dos, mac and unix respectively.
When list option is set, Vim displays $ character when the line break occurred no matter what fileformat option has been detected. It uses its own internal representation of line-breaks and that's what it displays.
Now when you write buffer to the disc, Vim inserts line-ending characters according to what fileformat options has been detected, essentially converting all those internal $'s with appropriate characters. If the fileformat happened to be unix then it will simply write \n in place of its internal line-break.
The trick is to force Vim to read a dos encoded file as unix one. The net effect is that it will remove all \n's leaving \r's untouched and display them as ^M's in your buffer. Setting :set list will additionally show internal line-endings as $. After all, you see ^M$ in place of dos encoded line-breaks.
Also notice that :set list has nothing to do with showing ^M's. You can check it by yourself (make sure you have disabled list option first) by inserting single CR using CTRL-V followed by Enter in insert mode. After writing buffer to disc and opening it again you will see ^M despite list option being set to 0.
You can find more about file formats on http://vim.wikia.com/wiki/File_format or by typing:help 'fileformat' in Vim.
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