Let's see how we can find and replace CR (Carriage Return) and LF (Line Feed) characters from a file using Notepad++ application on the Windows operating system.
First let's see what their characters are,Carriage Return (CR): Also know as Cartridge return,
It is a control character used to reset the position of the cursor to the beginning of the next line of a text file.
Symbol : ↵
Unicode : U+21B5
HTML Entity : ↵
ASCII : 13
Programming Languages: \r
Note: It is also known as Control+M character and may be seen as ^M
Line Feed (LF): Also known as Newline Character or End Of Line Character (EOF) or line break. It is a special character used to signify the end of a line of text and the start of a new line in a file.
Symbol : 
Unicode: U+000A
HTML Entity :
ASCII: 10
Programming Languages: \n
CRLF Relation:
Carriage return and Line feed are very much associated with each other and hence you would see both of them clubbed together as CR+LF or LF+CR, CRLF or LFCR
How to find CRLF characters using Notepad++You can use a regular expression to find CRLF character,
- Open file in Notepad++
- Goto Find,
- Make sure that in Search Mode, the Regular Expression option is selected.
- In "Find what" add regular expression [\r\n]+
- Now you should see CRLF characters highlighted.
You can use a regular expression to find CRLF character,
- Open file in Notepad++
- Goto Find & Replace,
- Make sure that in Search Mode, the Regular Expression option is selected.
- In "Find what" add regular expression [\r\n]+ and in Replace with : \n
- CRLF will be replaced with a newline character.
- Go to Edit -> EOL Conversion
- Select Windows Format
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