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mirc/identifiers/$crlf
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The $crlf is an mIRC identifier that returns a carriage return and line feed concatenated together. I.E. the $crlf identifier is behaviorally the same as:

$cr $+ $lf

This identifier is typically used where inserting a new line is required such as when writing multiple lines at once using the /write command or when writing data onto a socket.

See also