To check the current number of lines set: Command: (getenv "CmdHistLines")
To set a new maximum number of lines: Command: (setenv "CmdHistLines" "1000")
The number you use must be in a range from 25 to 2048! Note that "CmdHistLines" is case-sensitive and must be entered that way. =========================================
more info: http://www.jtbworld.com/lisp/historylines.htm
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