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Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

instance method

IO#lineno=

(::Integer integer) -> ::Integer
lineno = integer → integer

Sets and returns the line number for the stream; see Line Number.

See also #lineno #noecho #isatty #nonblock also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0