Difference between CR LF, LF and CR line break types

Carriage Return (Mac pre-OS X)

CR \r ASCII code 13 Line Feed (Linux, Mac OS X)

LF \n ASCII code 10 Carriage Return and Line Feed (Windows)

CRLF \r\n ASCII code 13 and then ASCII code 10 If you see ASCII code in a strange format, they are merely the number 13 and 10 in a different radix/base, usually base 8 (octal) or base 16 (hexadecimal).