This is documentation for Mathematica 4, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)

MessageList$HistoryLength

$Line

FilledSmallSquare$Line is a global variable that specifies the number of the current input line.

FilledSmallSquare You can reset $Line.

FilledSmallSquare See The Mathematica Book: Section 2.13.1.

FilledSmallSquare See also: In, Out, $HistoryLength.

Further Examples

MessageList$HistoryLength