readline: Commands For History

 
 1.4.2 Commands For Manipulating The History
 -------------------------------------------
 
 'accept-line (Newline or Return)'
      Accept the line regardless of where the cursor is.  If this line is
      non-empty, it may be added to the history list for future recall
      with 'add_history()'.  If this line is a modified history line, the
      history line is restored to its original state.
 
 'previous-history (C-p)'
      Move 'back' through the history list, fetching the previous
      command.
 
 'next-history (C-n)'
      Move 'forward' through the history list, fetching the next command.
 
 'beginning-of-history (M-<)'
      Move to the first line in the history.
 
 'end-of-history (M->)'
      Move to the end of the input history, i.e., the line currently
      being entered.
 
 'reverse-search-history (C-r)'
      Search backward starting at the current line and moving 'up'
      through the history as necessary.  This is an incremental search.
 
 'forward-search-history (C-s)'
      Search forward starting at the current line and moving 'down'
      through the history as necessary.  This is an incremental search.
 
 'non-incremental-reverse-search-history (M-p)'
      Search backward starting at the current line and moving 'up'
      through the history as necessary using a non-incremental search for
      a string supplied by the user.  The search string may match
      anywhere in a history line.
 
 'non-incremental-forward-search-history (M-n)'
      Search forward starting at the current line and moving 'down'
      through the history as necessary using a non-incremental search for
      a string supplied by the user.  The search string may match
      anywhere in a history line.
 
 'history-search-forward ()'
      Search forward through the history for the string of characters
      between the start of the current line and the point.  The search
      string must match at the beginning of a history line.  This is a
      non-incremental search.  By default, this command is unbound.
 
 'history-search-backward ()'
      Search backward through the history for the string of characters
      between the start of the current line and the point.  The search
      string must match at the beginning of a history line.  This is a
      non-incremental search.  By default, this command is unbound.
 
 'history-substr-search-forward ()'
      Search forward through the history for the string of characters
      between the start of the current line and the point.  The search
      string may match anywhere in a history line.  This is a
      non-incremental search.  By default, this command is unbound.
 
 'history-substr-search-backward ()'
      Search backward through the history for the string of characters
      between the start of the current line and the point.  The search
      string may match anywhere in a history line.  This is a
      non-incremental search.  By default, this command is unbound.
 
 'yank-nth-arg (M-C-y)'
      Insert the first argument to the previous command (usually the
      second word on the previous line) at point.  With an argument N,
      insert the Nth word from the previous command (the words in the
      previous command begin with word 0).  A negative argument inserts
      the Nth word from the end of the previous command.  Once the
      argument N is computed, the argument is extracted as if the '!N'
      history expansion had been specified.
 
 'yank-last-arg (M-. or M-_)'
      Insert last argument to the previous command (the last word of the
      previous history entry).  With a numeric argument, behave exactly
      like 'yank-nth-arg'.  Successive calls to 'yank-last-arg' move back
      through the history list, inserting the last word (or the word
      specified by the argument to the first call) of each line in turn.
      Any numeric argument supplied to these successive calls determines
      the direction to move through the history.  A negative argument
      switches the direction through the history (back or forward).  The
      history expansion facilities are used to extract the last argument,
      as if the '!$' history expansion had been specified.