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在非GUI环境下

<H3> 1.4.2 Commands For Manipulating The History </H3>
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<P>

<DL COMPACT>
<A NAME="IDX43"></A>
<DT><CODE>accept-line (Newline or Return)</CODE>
<DD><A NAME="IDX44"></A>
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
<CODE>add_history()</CODE>.
If this line is a modified history line, the history line is restored
to its original state.
<P>

<A NAME="IDX45"></A>
<DT><CODE>previous-history (C-p)</CODE>
<DD><A NAME="IDX46"></A>
Move `back' through the history list, fetching the previous command.
<P>

<A NAME="IDX47"></A>
<DT><CODE>next-history (C-n)</CODE>
<DD><A NAME="IDX48"></A>
Move `forward' through the history list, fetching the next command.
<P>

<A NAME="IDX49"></A>
<DT><CODE>beginning-of-history (M-&#60;)</CODE>
<DD><A NAME="IDX50"></A>
Move to the first line in the history.
<P>

<A NAME="IDX51"></A>
<DT><CODE>end-of-history (M-&#62;)</CODE>
<DD><A NAME="IDX52"></A>
Move to the end of the input history, i.e., the line currently
being entered.
<P>

<A NAME="IDX53"></A>
<DT><CODE>reverse-search-history (C-r)</CODE>
<DD><A NAME="IDX54"></A>
Search backward starting at the current line and moving `up' through
the history as necessary.  This is an incremental search.
<P>

<A NAME="IDX55"></A>
<DT><CODE>forward-search-history (C-s)</CODE>
<DD><A NAME="IDX56"></A>
Search forward starting at the current line and moving `down' through
the the history as necessary.  This is an incremental search.
<P>

<A NAME="IDX57"></A>
<DT><CODE>non-incremental-reverse-search-history (M-p)</CODE>
<DD><A NAME="IDX58"></A>
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.
<P>

<A NAME="IDX59"></A>
<DT><CODE>non-incremental-forward-search-history (M-n)</CODE>
<DD><A NAME="IDX60"></A>
Search forward starting at the current line and moving `down'
through the the history as necessary using a non-incremental search
for a string supplied by the user.
<P>

<A NAME="IDX61"></A>
<DT><CODE>history-search-forward ()</CODE>
<DD><A NAME="IDX62"></A>
Search forward through the history for the string of characters
between the start of the current line and the point.
This is a non-incremental search.
By default, this command is unbound.
<P>

<A NAME="IDX63"></A>
<DT><CODE>history-search-backward ()</CODE>
<DD><A NAME="IDX64"></A>
Search backward through the history for the string of characters
between the start of the current line and the point.  This
is a non-incremental search.  By default, this command is unbound.
<P>

<A NAME="IDX65"></A>
<DT><CODE>yank-nth-arg (M-C-y)</CODE>
<DD><A NAME="IDX66"></A>
Insert the first argument to the previous command (usually
the second word on the previous line) at point.
With an argument <VAR>n</VAR>,
insert the <VAR>n</VAR>th word from the previous command (the words
in the previous command begin with word 0).  A negative argument
inserts the <VAR>n</VAR>th word from the end of the previous command.
<P>

<A NAME="IDX67"></A>
<DT><CODE>yank-last-arg (M-. or M-_)</CODE>
<DD><A NAME="IDX68"></A>
Insert last argument to the previous command (the last word of the
previous history entry).  With an
argument, behave exactly like <CODE>yank-nth-arg</CODE>.
Successive calls to <CODE>yank-last-arg</CODE> move back through the history
list, inserting the last argument of each line in turn.
<P>

</DL>
<P>

<A NAME="Commands For Text"></A>
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<H3> 1.4.3 Commands For Changing Text </H3>
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<P>

<DL COMPACT>
<A NAME="IDX69"></A>
<DT><CODE>delete-char (C-d)</CODE>
<DD><A NAME="IDX70"></A>
Delete the character at point.  If point is at the
beginning of the line, there are no characters in the line, and
the last character typed was not bound to <CODE>delete-char</CODE>, then
return EOF.
<P>

<A NAME="IDX71"></A>
<DT><CODE>backward-delete-char (Rubout)</CODE>
<DD><A NAME="IDX72"></A>
Delete the character behind the cursor.  A numeric argument means
to kill the characters instead of deleting them.
<P>

<A NAME="IDX73"></A>
<DT><CODE>forward-backward-delete-char ()</CODE>
<DD><A NAME="IDX74"></A>
Delete the character under the cursor, unless the cursor is at the
end of the line, in which case the character behind the cursor is
deleted.  By default, this is not bound to a key.
<P>

<A NAME="IDX75"></A>
<DT><CODE>quoted-insert (C-q or C-v)</CODE>
<DD><A NAME="IDX76"></A>
Add the next character typed to the line verbatim.  This is
how to insert key sequences like <KBD>C-q</KBD>, for example.
<P>

<A NAME="IDX77"></A>
<DT><CODE>tab-insert (M-<KBD>TAB</KBD>)</CODE>
<DD><A NAME="IDX78"></A>
Insert a tab character.
<P>

<A NAME="IDX79"></A>
<DT><CODE>self-insert (a, b, A, 1, !, <small>...</small>)</CODE>
<DD><A NAME="IDX80"></A>
Insert yourself.
<P>

<A NAME="IDX81"></A>
<DT><CODE>transpose-chars (C-t)</CODE>
<DD><A NAME="IDX82"></A>
Drag the character before the cursor forward over
the character at the cursor, moving the
cursor forward as well.  If the insertion point
is at the end of the line, then this
transposes the last two characters of the line.
Negative arguments have no effect.
<P>

<A NAME="IDX83"></A>
<DT><CODE>transpose-words (M-t)</CODE>
<DD><A NAME="IDX84"></A>
Drag the word before point past the word after point,
moving point past that word as well.
If the insertion point is at the end of the line, this transposes
the last two words on the line.
<P>

<A NAME="IDX85"></A>
<DT><CODE>upcase-word (M-u)</CODE>
<DD><A NAME="IDX86"></A>
Uppercase the current (or following) word.  With a negative argument,
uppercase the previous word, but do not move the cursor.
<P>

<A NAME="IDX87"></A>
<DT><CODE>downcase-word (M-l)</CODE>
<DD><A NAME="IDX88"></A>
Lowercase the current (or following) word.  With a negative argument,
lowercase the previous word, but do not move the cursor.
<P>

<A NAME="IDX89"></A>
<DT><CODE>capitalize-word (M-c)</CODE>
<DD><A NAME="IDX90"></A>
Capitalize the current (or following) word.  With a negative argument,
capitalize the previous word, but do not move the cursor.
<P>

<A NAME="IDX91"></A>
<DT><CODE>overwrite-mode ()</CODE>
<DD><A NAME="IDX92"></A>
Toggle overwrite mode.  With an explicit positive numeric argument,
switches to overwrite mode.  With an explicit non-positive numeric
argument, switches to insert mode.  This command affects only
<CODE>emacs</CODE> mode; <CODE>vi</CODE> mode does overwrite differently.
Each call to <CODE>readline()</CODE> starts in insert mode.
<P>

In overwrite mode, characters bound to <CODE>self-insert</CODE> replace
the text at point rather than pushing the text to the right.
Characters bound to <CODE>backward-delete-char</CODE> replace the character
before point with a space.
</P><P>

By default, this command is unbound.
</P><P>

</DL>
<P>

<A NAME="Commands For Killing"></A>
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<H3> 1.4.4 Killing And Yanking </H3>
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<P>

<DL COMPACT>

<A NAME="IDX93"></A>
<DT><CODE>kill-line (C-k)</CODE>
<DD><A NAME="IDX94"></A>
Kill the text from point to the end of the line.
<P>

<A NAME="IDX95"></A>
<DT><CODE>backward-kill-line (C-x Rubout)</CODE>
<DD><A NAME="IDX96"></A>
Kill backward to the beginning of the line.
<P>

<A NAME="IDX97"></A>
<DT><CODE>unix-line-discard (C-u)</CODE>
<DD><A NAME="IDX98"></A>
Kill backward from the cursor to the beginning of the current line.
<P>

<A NAME="IDX99"></A>
<DT><CODE>kill-whole-line ()</CODE>
<DD><A NAME="IDX100"></A>
Kill all characters on the current line, no matter where point is.
By default, this is unbound.
<P>

<A NAME="IDX101"></A>
<DT><CODE>kill-word (M-d)</CODE>
<DD><A NAME="IDX102"></A>
Kill from point to the end of the current word, or if between
words, to the end of the next word.
Word boundaries are the same as <CODE>forward-word</CODE>.
<P>

<A NAME="IDX103"></A>
<DT><CODE>backward-kill-word (M-<KBD>DEL</KBD>)</CODE>
<DD><A NAME="IDX104"></A>
Kill the word behind point.
Word boundaries are the same as <CODE>backward-word</CODE>.
<P>

<A NAME="IDX105"></A>
<DT><CODE>unix-word-rubout (C-w)</CODE>
<DD><A NAME="IDX106"></A>
Kill the word behind point, using white space as a word boundary.
The killed text is saved on the kill-ring.
<P>

<A NAME="IDX107"></A>
<DT><CODE>unix-filename-rubout ()</CODE>
<DD><A NAME="IDX108"></A>
Kill the word behind point, using white space and the s