Abort character CTRL-F ("Funny Return") character is used to abort a "v" command before all the specified lines have been modified. Typing it causes the current line to be restored to its state of before the "v" command was begun, and causes a return to the editor's command level. Type "hv" for a description of the "v" command. Type "hrpt" for CTRL-F's meaning if in append or command mode. Type "htermchar" for info about other termination characters.