string - What's the difference between and ?

Question

They both mean "new line" but when is one used over the other?

Answer 1

is a Windows Style

is a POSIX Style

is a old pre-OS X Macs Style, Modern Mac's using POSIX Style.

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is a carriage return and is a line feed, in old computers where it not have monitor, have only printer to get out programs result to user, if you want get printing from staring of new line from left, you must get for Line Feed, and for get Carriage return to the most left position, this is from old computers syntax saved to this time on Windows platform.