Difference between \n and \r 👀

In Unix and all Unix-like systems, \n is the code for end-of-line, \r means nothing special. 🤷🏻‍♂️

As a consequence, in C and most languages that somehow copy it (even remotely), \n is the standard escape sequence for end of line (translated to/from OS-specific sequences as needed)

in old Mac systems (pre-OS X), \r was the code for end-of-line instead. 🖥

As a (surprising) consequence (harking back to OSs much older than Windows), \r\n is the standard line-termination for text formats on the Internet. 🌏

For electromechanical teletype-like "terminals", \r commands the carriage to go back leftwards until it hits the leftmost stop (a slow operation), \n commands the roller to roll up one line (a much faster operation) — that's the reason you always have \r before \n, so that the roller can move while the carriage is still going leftwards!.

For character-mode terminals (typically emulating even-older printing ones as above), in raw mode, \r and \n act similarly (except both in terms of the cursor, as there is no carriage or roller) 😉

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#scape_secuence
@ProgrammingTip