@HISTORY[x[,y]] : Returns a line or word from the command history. (This function will prove most useful in keystroke aliases). x is the line to retrieve (current line = 0), and y is the specific word (first word = 0) desired within that line. If y is omitted, @HISTORY returns the entire line.
Numeric input may be entered in either decimal format (a sequence of 0-9 digits) or in hexadecimal format ("0x" followed by a sequence of 0-F hex digits).
