Function keys -- Does
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F1 Pastes the last executed command (character by character)
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F2 Pastes the last executed command (up to the entered character)
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F3 Pastes the last executed command
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F4 Deletes current prompt text up to the entered character
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F5 Pastes recently executed commands (does not cycle)
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F6 Pastes ^Z to the prompt
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F7 Displays a selectable list of previously executed commands
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F8 Pastes recently executed commands (cycles)
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F9 Asks for the number of the command from the F7 list to paste