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List (of line numbers)
A line number list consists of one or more LINE NUMBERs sep-
arated with commas or semicolons. The last two line numbers
in the list usually specify the scope of a command. For
example, "5,7d" means delete lines 5 through 7. If the list
consists of only one line number, it is equivalant to a list
with that line number written twice with a comma separating.
The sense of the semicolon is to set the CURRENT LINE POINTER
to the value of the line number before the semicolon before
evaluating the line number after it, whose value may depend
upon the value of the current line pointer.
For command syntax, type "hcomsyn".
For LINE NUMBER syntax and semantics, type "hln".