readline - phpMan

READLINE(3) READLINE(3)

NAME
readline - get a line from a user with editing

SYNOPSIS
#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>

char *
readline (const char *prompt);

DESCRIPTION
readline will read a line from the terminal and return it, using prompt as a
prompt. If prompt is NULL or the empty string, no prompt is issued. The line
returned is allocated with malloc(3); the caller must free it when finished. The
line returned has the final newline removed, so only the text of the line remains.

readline offers editing capabilities while the user is entering the line. By
default, the line editing commands are similar to those of emacs. A vi-style line
editing interface is also available.

This manual page describes only the most basic use of readline. Much more func-
tionality is available; see The GNU Readline Library and The GNU History Library
for additional information.

RETURN VALUE
readline returns the text of the line read. A blank line returns the empty string.
If EOF is encountered while reading a line, and the line is empty, NULL is
returned. If an EOF is read with a non-empty line, it is treated as a newline.

NOTATION
An emacs-style notation is used to denote keystrokes. Control keys are denoted by
C-key, e.g., C-n means Control-N. Similarly, meta keys are denoted by M-key, so
M-x means Meta-X. (On keyboards without a meta key, M-x means ESC x, i.e., press
the Escape key then the x key. This makes ESC the meta prefix. The combination
M-C-x means ESC-Control-x, or press the Escape key then hold the Control key while
pressing the x key.)

Readline commands may be given numeric arguments, which normally act as a repeat
count. Sometimes, however, it is the sign of the argument that is significant.
Passing a negative argument to a command that acts in the forward direction (e.g.,
kill-line) causes that command to act in a backward direction. Commands whose
behavior with arguments deviates from this are noted.

When a command is described as killing text, the text deleted is saved for possible
future retrieval (yanking). The killed text is saved in a kill ring. Consecutive
kills cause the text to be accumulated into one unit, which can be yanked all at
once. Commands which do not kill text separate the chunks of text on the kill
ring.

INITIALIZATION FILE
Readline is customized by putting commands in an initialization file (the inputrc
file). The name of this file is taken from the value of the INPUTRC environment
variable. If that variable is unset, the default is ~/.inputrc. When a program
which uses the readline library starts up, the init file is read, and the key bind-
ings and variables are set. There are only a few basic constructs allowed in the
readline init file. Blank lines are ignored. Lines beginning with a # are com-
ments. Lines beginning with a $ indicate conditional constructs. Other lines
denote key bindings and variable settings. Each program using this library may add
its own commands and bindings.

For example, placing

M-Control-u: universal-argument
or
C-Meta-u: universal-argument

into the inputrc would make M-C-u execute the readline command universal-argument.

The following symbolic character names are recognized while processing key bind-
ings: DEL, ESC, ESCAPE, LFD, NEWLINE, RET, RETURN, RUBOUT, SPACE, SPC, and TAB.

In addition to command names, readline allows keys to be bound to a string that is
inserted when the key is pressed (a macro).

Key Bindings
The syntax for controlling key bindings in the inputrc file is simple. All that is
required is the name of the command or the text of a macro and a key sequence to
which it should be bound. The name may be specified in one of two ways: as a sym-
bolic key name, possibly with Meta- or Control- prefixes, or as a key sequence.

When using the form keyname:function-name or macro, keyname is the name of a key
spelled out in English. For example:

Control-u: universal-argument
Meta-Rubout: backward-kill-word
Control-o: "> output"

In the above example, C-u is bound to the function universal-argument, M-DEL is
bound to the function backward-kill-word, and C-o is bound to run the macro
expressed on the right hand side (that is, to insert the text ''> output'' into the
line).

In the second form, "keyseq":function-name or macro, keyseq differs from keyname
above in that strings denoting an entire key sequence may be specified by placing
the sequence within double quotes. Some GNU Emacs style key escapes can be used,
as in the following example, but the symbolic character names are not recognized.

"\C-u": universal-argument
"\C-x\C-r": re-read-init-file
"\e[11~": "Function Key 1"

In this example, C-u is again bound to the function universal-argument. C-x C-r is
bound to the function re-read-init-file, and ESC [ 1 1 ~ is bound to insert the
text ''Function Key 1''.

The full set of GNU Emacs style escape sequences available when specifying key
sequences is
\C- control prefix
\M- meta prefix
\e an escape character
\\ backslash
\" literal ", a double quote
\' literal ', a single quote

In addition to the GNU Emacs style escape sequences, a second set of backslash
escapes is available:
\a alert (bell)
\b backspace
\d delete
\f form feed
\n newline
\r carriage return
\t horizontal tab
\v vertical tab
\nnn the eight-bit character whose value is the octal value nnn (one to
three digits)
\xHH the eight-bit character whose value is the hexadecimal value HH (one
or two hex digits)

When entering the text of a macro, single or double quotes should be used to indi-
cate a macro definition. Unquoted text is assumed to be a function name. In the
macro body, the backslash escapes described above are expanded. Backslash will
quote any other character in the macro text, including " and '.

Bash allows the current readline key bindings to be displayed or modified with the
bind builtin command. The editing mode may be switched during interactive use by
using the -o option to the set builtin command. Other programs using this library
provide similar mechanisms. The inputrc file may be edited and re-read if a pro-
gram does not provide any other means to incorporate new bindings.

Variables
Readline has variables that can be used to further customize its behavior. A vari-
able may be set in the inputrc file with a statement of the form

set variable-name value

Except where noted, readline variables can take the values On or Off (without
regard to case). Unrecognized variable names are ignored. When a variable value
is read, empty or null values, "on" (case-insensitive), and "1" are equivalent to
On. All other values are equivalent to Off. The variables and their default val-
ues are:

bell-style (audible)
Controls what happens when readline wants to ring the terminal bell. If set
to none, readline never rings the bell. If set to visible, readline uses a
visible bell if one is available. If set to audible, readline attempts to
ring the terminal's bell.
bind-tty-special-chars (On)
If set to On, readline attempts to bind the control characters treated spe-
cially by the kernel's terminal driver to their readline equivalents.
comment-begin (''#'')
The string that is inserted in vi mode when the insert-comment command is
executed. This command is bound to M-# in emacs mode and to # in vi command
mode.
completion-ignore-case (Off)
If set to On, readline performs filename matching and completion in a
case-insensitive fashion.
completion-query-items (100)
This determines when the user is queried about viewing the number of possi-
ble completions generated by the possible-completions command. It may be
set to any integer value greater than or equal to zero. If the number of
possible completions is greater than or equal to the value of this variable,
the user is asked whether or not he wishes to view them; otherwise they are
simply listed on the terminal. A negative value causes readline to never
ask.
convert-meta (On)
If set to On, readline will convert characters with the eighth bit set to an
ASCII key sequence by stripping the eighth bit and prefixing it with an
escape character (in effect, using escape as the meta prefix).
disable-completion (Off)
If set to On, readline will inhibit word completion. Completion characters
will be inserted into the line as if they had been mapped to self-insert.
editing-mode (emacs)
Controls whether readline begins with a set of key bindings similar to emacs
or vi. editing-mode can be set to either emacs or vi.
enable-keypad (Off)
When set to On, readline will try to enable the application keypad when it
is called. Some systems need this to enable the arrow keys.
expand-tilde (Off)
If set to on, tilde expansion is performed when readline attempts word com-
pletion.
history-preserve-point (Off)
If set to on, the history code attempts to place point at the same location
on each history line retrieved with previous-history or next-history.
horizontal-scroll-mode (Off)
When set to On, makes readline use a single line for display, scrolling the
input horizontally on a single screen line when it becomes longer than the
screen width rather than wrapping to a new line.
input-meta (Off)
If set to On, readline will enable eight-bit input (that is, it will not
clear the eighth bit in the characters it reads), regardless of what the
terminal claims it can support. The name meta-flag is a synonym for this
variable.
isearch-terminators (''C-[ C-J'')
The string of characters that should terminate an incremental search without
subsequently executing the character as a command. If this variable has not
been given a value, the characters ESC and C-J will terminate an incremental
search.
keymap (emacs)
Set the current readline keymap. The set of legal keymap names is emacs,
emacs-standard, emacs-meta, emacs-ctlx, vi, vi-move, vi-command, and vi-
insert. vi is equivalent to vi-command; emacs is equivalent to emacs-stan-
dard. The default value is emacs. The value of editing-mode also affects
the default keymap.
mark-directories (On)
If set to On, completed directory names have a slash appended.
mark-modified-lines (Off)
If set to On, history lines that have been modified are displayed with a
preceding asterisk (*).
mark-symlinked-directories (Off)
If set to On, completed names which are symbolic links to directories have a
slash appended (subject to the value of mark-directories).
match-hidden-files (On)
This variable, when set to On, causes readline to match files whose names
begin with a '.' (hidden files) when performing filename completion, unless
the leading '.' is supplied by the user in the filename to be completed.
output-meta (Off)
If set to On, readline will display characters with the eighth bit set
directly rather than as a meta-prefixed escape sequence.
page-completions (On)
If set to On, readline uses an internal more-like pager to display a screen-
ful of possible completions at a time.
print-completions-horizontally (Off)
If set to On, readline will display completions with matches sorted horizon-
tally in alphabetical order, rather than down the screen.
show-all-if-ambiguous (Off)
This alters the default behavior of the completion functions. If set to on,
words which have more than one possible completion cause the matches to be
listed immediately instead of ringing the bell.
show-all-if-unmodified (Off)
This alters the default behavior of the completion functions in a fashion
similar to show-all-if-ambiguous. If set to on, words which have more than
one possible completion without any possible partial completion (the possi-
ble completions don't share a common prefix) cause the matches to be listed
immediately instead of ringing the bell.
visible-stats (Off)
If set to On, a character denoting a file's type as reported by stat(2) is
appended to the filename when listing possible completions.

Conditional Constructs
Readline implements a facility similar in spirit to the conditional compilation
features of the C preprocessor which allows key bindings and variable settings to
be performed as the result of tests. There are four parser directives used.

$if The $if construct allows bindings to be made based on the editing mode, the
terminal being used, or the application using readline. The text of the
test extends to the end of the line; no characters are required to isolate
it.

mode The mode= form of the $if directive is used to test whether readline
is in emacs or vi mode. This may be used in conjunction with the set
keymap command, for instance, to set bindings in the emacs-standard
and emacs-ctlx keymaps only if readline is starting out in emacs
mode.

term The term= form may be used to include terminal-specific key bindings,
perhaps to bind the key sequences output by the terminal's function
keys. The word on the right side of the = is tested against the full
name of the terminal and the portion of the terminal name before the
first -. This allows sun to match both sun and sun-cmd, for
instance.

application
The application construct is used to include application-specific
settings. Each program using the readline library sets the applica-
tion name, and an initialization file can test for a particular
value. This could be used to bind key sequences to functions useful
for a specific program. For instance, the following command adds a
key sequence that quotes the current or previous word in Bash:

$if Bash
# Quote the current or previous word
"\C-xq": "\eb\"\ef\""
$endif

$endif This command, as seen in the previous example, terminates an $if command.

$else Commands in this branch of the $if directive are executed if the test fails.

$include
This directive takes a single filename as an argument and reads commands and
bindings from that file. For example, the following directive would read
/etc/inputrc:

$include /etc/inputrc

SEARCHING
Readline provides commands for searching through the command history for lines con-
taining a specified string. There are two search modes: incremental and non-incre-
mental.

Incremental searches begin before the user has finished typing the search string.
As each character of the search string is typed, readline displays the next entry
from the history matching the string typed so far. An incremental search requires
only as many characters as needed to find the desired history entry. To search
backward in the history for a particular string, type C-r. Typing C-s searches
forward through the history. The characters present in the value of the isearch-
terminators variable are used to terminate an incremental search. If that variable
has not been assigned a value the Escape and C-J characters will terminate an
incremental search. C-G will abort an incremental search and restore the original
line. When the search is terminated, the history entry containing the search
string becomes the current line.

To find other matching entries in the history list, type C-s or C-r as appropriate.
This will search backward or forward in the history for the next line matching the
search string typed so far. Any other key sequence bound to a readline command
will terminate the search and execute that command. For instance, a newline will
terminate the search and accept the line, thereby executing the command from the
history list. A movement command will terminate the search, make the last line
found the current line, and begin editing.

Non-incremental searches read the entire search string before starting to search
for matching history lines. The search string may be typed by the user or be part
of the contents of the current line.

EDITING COMMANDS
The following is a list of the names of the commands and the default key sequences
to which they are bound. Command names without an accompanying key sequence are
unbound by default.

In the following descriptions, point refers to the current cursor position, and
mark refers to a cursor position saved by the set-mark command. The text between
the point and mark is referred to as the region.

Commands for Moving
beginning-of-line (C-a)
Move to the start of the current line.
end-of-line (C-e)
Move to the end of the line.
forward-char (C-f)
Move forward a character.
backward-char (C-b)
Move back a character.
forward-word (M-f)
Move forward to the end of the next word. Words are composed of alphanu-
meric characters (letters and digits).
backward-word (M-b)
Move back to the start of the current or previous word. Words are composed
of alphanumeric characters (letters and digits).
clear-screen (C-l)
Clear the screen leaving the current line at the top of the screen. With an
argument, refresh the current line without clearing the screen.
redraw-current-line
Refresh the current line.

Commands for Manipulating the History
accept-line (Newline, 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_his-
tory(). If the line is a modified history line, the history line is
restored to its original state.
previous-history (C-p)
Fetch the previous command from the history list, moving back in the list.
next-history (C-n)
Fetch the next command from the history list, moving forward in the list.
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 through the history starting at the current line using a
non-incremental search for a string supplied by the user.
non-incremental-forward-search-history (M-n)
Search forward through the history using a non-incremental search for a
string supplied by the user.
history-search-forward
Search forward through the history for the string of characters between the
start of the current line and the current cursor position (the point). This
is a non-incremental search.
history-search-backward
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.
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-., M-_)
Insert the last argument to the previous command (the last word of the pre-
vious history entry). With an argument, behave exactly like yank-nth-arg.
Successive calls to yank-last-arg move back through the history list,
inserting the last argument of each line in turn. The history expansion
facilities are used to extract the last argument, as if the "!$" history
expansion had been specified.

Commands for Changing Text
delete-char (C-d)
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 delete-char, then return EOF.
backward-delete-char (Rubout)
Delete the character behind the cursor. When given a numeric argument, save
the deleted text on the kill ring.
forward-backward-delete-char
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.
quoted-insert (C-q, C-v)
Add the next character that you type to the line verbatim. This is how to
insert characters like C-q, for example.
tab-insert (M-TAB)
Insert a tab character.
self-insert (a, b, A, 1, !, ...)
Insert the character typed.
transpose-chars (C-t)
Drag the character before point forward over the character at point, moving
point forward as well. If point is at the end of the line, then this
transposes the two characters before point. Negative arguments have no
effect.
transpose-words (M-t)
Drag the word before point past the word after point, moving point over that
word as well. If point is at the end of the line, this transposes the last
two words on the line.
upcase-word (M-u)
Uppercase the current (or following) word. With a negative argument, upper-
case the previous word, but do not move point.
downcase-word (M-l)
Lowercase the current (or following) word. With a negative argument, lower-
case the previous word, but do not move point.
capitalize-word (M-c)
Capitalize the current (or following) word. With a negative argument, capi-
talize the previous word, but do not move point.
overwrite-mode
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 emacs mode; vi mode does over-
write differently. Each call to readline() starts in insert mode. In over-
write mode, characters bound to self-insert replace the text at point rather
than pushing the text to the right. Characters bound to back-
ward-delete-char replace the character before point with a space. By
default, this command is unbound.

Killing and Yanking
kill-line (C-k)
Kill the text from point to the end of the line.
backward-kill-line (C-x Rubout)
Kill backward to the beginning of the line.
unix-line-discard (C-u)
Kill backward from point to the beginning of the line. The killed text is
saved on the kill-ring.
kill-whole-line
Kill all characters on the current line, no matter where point is.
kill-word (M-d)
Kill from point the end of the current word, or if between words, to the end
of the next word. Word boundaries are the same as those used by for-
ward-word.
backward-kill-word (M-Rubout)
Kill the word behind point. Word boundaries are the same as those used by
backward-word.
unix-word-rubout (C-w)
Kill the word behind point, using white space as a word boundary. The
killed text is saved on the kill-ring.
unix-filename-rubout
Kill the word behind point, using white space and the slash character as the
word boundaries. The killed text is saved on the kill-ring.
delete-horizontal-space (M-\)
Delete all spaces and tabs around point.
kill-region
Kill the text between the point and mark (saved cursor position). This text
is referred to as the region.
copy-region-as-kill
Copy the text in the region to the kill buffer.
copy-backward-word
Copy the word before point to the kill buffer. The word boundaries are the
same as backward-word.
copy-forward-word
Copy the word following point to the kill buffer. The word boundaries are
the same as forward-word.
yank (C-y)
Yank the top of the kill ring into the buffer at point.
yank-pop (M-y)
Rotate the kill ring, and yank the new top. Only works following yank or
yank-pop.

Numeric Arguments
digit-argument (M-0, M-1, ..., M--)
Add this digit to the argument already accumulating, or start a new argu-
ment. M-- starts a negative argument.
universal-argument
This is another way to specify an argument. If this command is followed by
one or more digits, optionally with a leading minus sign, those digits
define the argument. If the command is followed by digits, executing uni-
versal-argument again ends the numeric argument, but is otherwise ignored.
As a special case, if this command is immediately followed by a character
that is neither a digit or minus sign, the argument count for the next com-
mand is multiplied by four. The argument count is initially one, so
executing this function the first time makes the argument count four, a sec-
ond time makes the argument count sixteen, and so on.

Completing
complete (TAB)
Attempt to perform completion on the text before point. The actual comple-
tion performed is application-specific. Bash, for instance, attempts com-
pletion treating the text as a variable (if the text begins with $), user-
name (if the text begins with ~), hostname (if the text begins with @), or
command (including aliases and functions) in turn. If none of these pro-
duces a match, filename completion is attempted. Gdb, on the other hand,
allows completion of program functions and variables, and only attempts
filename completion under certain circumstances.
possible-completions (M-?)
List the possible completions of the text before point.
insert-completions (M-*)
Insert all completions of the text before point that would have been gener-
ated by possible-completions.
menu-complete
Similar to complete, but replaces the word to be completed with a single
match from the list of possible completions. Repeated execution of
menu-complete steps through the list of possible completions, inserting each
match in turn. At the end of the list of completions, the bell is rung
(subject to the setting of bell-style) and the original text is restored.
An argument of n moves n positions forward in the list of matches; a nega-
tive argument may be used to move backward through the list. This command
is intended to be bound to TAB, but is unbound by default.
delete-char-or-list
Deletes the character under the cursor if not at the beginning or end of the
line (like delete-char). If at the end of the line, behaves identically to
possible-completions.

Keyboard Macros
start-kbd-macro (C-x ()
Begin saving the characters typed into the current keyboard macro.
end-kbd-macro (C-x ))
Stop saving the characters typed into the current keyboard macro and store
the definition.
call-last-kbd-macro (C-x e)
Re-execute the last keyboard macro defined, by making the characters in the
macro appear as if typed at the keyboard.

Miscellaneous
re-read-init-file (C-x C-r)
Read in the contents of the inputrc file, and incorporate any bindings or
variable assignments found there.
abort (C-g)
Abort the current editing command and ring the terminal's bell (subject to
the setting of bell-style).
do-uppercase-version (M-a, M-b, M-x, ...)
If the metafied character x is lowercase, run the command that is bound to
the corresponding uppercase character.
prefix-meta (ESC)
Metafy the next character typed. ESC f is equivalent to Meta-f.
undo (C-_, C-x C-u)
Incremental undo, separately remembered for each line.
revert-line (M-r)
Undo all changes made to this line. This is like executing the undo command
enough times to return the line to its initial state.
tilde-expand (M-&)
Perform tilde expansion on the current word.
set-mark (C-@, M-<space>)
Set the mark to the point. If a numeric argument is supplied, the mark is
set to that position.
exchange-point-and-mark (C-x C-x)
Swap the point with the mark. The current cursor position is set to the
saved position, and the old cursor position is saved as the mark.
character-search (C-])
A character is read and point is moved to the next occurrence of that char-
acter. A negative count searches for previous occurrences.
character-search-backward (M-C-])
A character is read and point is moved to the previous occurrence of that
character. A negative count searches for subsequent occurrences.
insert-comment (M-#)
Without a numeric argument, the value of the readline comment-begin variable
is inserted at the beginning of the current line. If a numeric argument is
supplied, this command acts as a toggle: if the characters at the beginning
of the line do not match the value of comment-begin, the value is inserted,
otherwise the characters in comment-begin are deleted from the beginning of
the line. In either case, the line is accepted as if a newline had been
typed. The default value of comment-begin makes the current line a shell
comment. If a numeric argument causes the comment character to be removed,
the line will be executed by the shell.
dump-functions
Print all of the functions and their key bindings to the readline output
stream. If a numeric argument is supplied, the output is formatted in such
a way that it can be made part of an inputrc file.
dump-variables
Print all of the settable variables and their values to the readline output
stream. If a numeric argument is supplied, the output is formatted in such
a way that it can be made part of an inputrc file.
dump-macros
Print all of the readline key sequences bound to macros and the strings they
output. If a numeric argument is supplied, the output is formatted in such
a way that it can be made part of an inputrc file.
emacs-editing-mode (C-e)
When in vi command mode, this causes a switch to emacs editing mode.
vi-editing-mode (M-C-j)
When in emacs editing mode, this causes a switch to vi editing mode.

DEFAULT KEY BINDINGS
The following is a list of the default emacs and vi bindings. Characters with the
eighth bit set are written as M-<character>, and are referred to as metafied char-
acters. The printable ASCII characters not mentioned in the list of emacs standard
bindings are bound to the self-insert function, which just inserts the given char-
acter into the input line. In vi insertion mode, all characters not specifically
mentioned are bound to self-insert. Characters assigned to signal generation by
stty(1) or the terminal driver, such as C-Z or C-C, retain that function. Upper
and lower case metafied characters are bound to the same function in the emacs mode
meta keymap. The remaining characters are unbound, which causes readline to ring
the bell (subject to the setting of the bell-style variable).

Emacs Mode
Emacs Standard bindings

"C-@" set-mark
"C-A" beginning-of-line
"C-B" backward-char
"C-D" delete-char
"C-E" end-of-line
"C-F" forward-char
"C-G" abort
"C-H" backward-delete-char
"C-I" complete
"C-J" accept-line
"C-K" kill-line
"C-L" clear-screen
"C-M" accept-line
"C-N" next-history
"C-P" previous-history
"C-Q" quoted-insert
"C-R" reverse-search-history
"C-S" forward-search-history
"C-T" transpose-chars
"C-U" unix-line-discard
"C-V" quoted-insert
"C-W" unix-word-rubout
"C-Y" yank
"C-]" character-search
"C-_" undo
" " to "/" self-insert
"0" to "9" self-insert
":" to "~" self-insert
"C-?" backward-delete-char

Emacs Meta bindings

"M-C-G" abort
"M-C-H" backward-kill-word
"M-C-I" tab-insert
"M-C-J" vi-editing-mode
"M-C-M" vi-editing-mode
"M-C-R" revert-line
"M-C-Y" yank-nth-arg
"M-C-[" complete
"M-C-]" character-search-backward
"M-space" set-mark
"M-#" insert-comment
"M-&" tilde-expand
"M-*" insert-completions
"M--" digit-argument
"M-." yank-last-arg
"M-0" digit-argument
"M-1" digit-argument
"M-2" digit-argument
"M-3" digit-argument
"M-4" digit-argument
"M-5" digit-argument
"M-6" digit-argument
"M-7" digit-argument
"M-8" digit-argument
"M-9" digit-argument
"M-<" beginning-of-history
"M-=" possible-completions
"M->" end-of-history
"M-?" possible-completions
"M-B" backward-word
"M-C" capitalize-word
"M-D" kill-word
"M-F" forward-word
"M-L" downcase-word
"M-N" non-incremental-forward-search-history
"M-P" non-incremental-reverse-search-history
"M-R" revert-line
"M-T" transpose-words
"M-U" upcase-word
"M-Y" yank-pop
"M-\" delete-horizontal-space
"M-~" tilde-expand
"M-C-?" backward-kill-word
"M-_" yank-last-arg

Emacs Control-X bindings

"C-XC-G" abort
"C-XC-R" re-read-init-file
"C-XC-U" undo
"C-XC-X" exchange-point-and-mark
"C-X(" start-kbd-macro
"C-X)" end-kbd-macro
"C-XE" call-last-kbd-macro
"C-XC-?" backward-kill-line

VI Mode bindings
VI Insert Mode functions

"C-D" vi-eof-maybe
"C-H" backward-delete-char
"C-I" complete
"C-J" accept-line
"C-M" accept-line
"C-R" reverse-search-history
"C-S" forward-search-history
"C-T" transpose-chars
"C-U" unix-line-discard
"C-V" quoted-insert
"C-W" unix-word-rubout
"C-Y" yank
"C-[" vi-movement-mode
"C-_" undo
" " to "~" self-insert
"C-?" backward-delete-char

VI Command Mode functions

"C-D" vi-eof-maybe
"C-E" emacs-editing-mode
"C-G" abort
"C-H" backward-char
"C-J" accept-line
"C-K" kill-line
"C-L" clear-screen
"C-M" accept-line
"C-N" next-history
"C-P" previous-history
"C-Q" quoted-insert
"C-R" reverse-search-history
"C-S" forward-search-history
"C-T" transpose-chars
"C-U" unix-line-discard
"C-V" quoted-insert
"C-W" unix-word-rubout
"C-Y" yank
"C-_" vi-undo
" " forward-char
"#" insert-comment
"$" end-of-line
"%" vi-match
"&" vi-tilde-expand
"*" vi-complete
"+" next-history
"," vi-char-search
"-" previous-history
"." vi-redo
"/" vi-search
"0" beginning-of-line
"1" to "9" vi-arg-digit
";" vi-char-search
"=" vi-complete
"?" vi-search
"A" vi-append-eol
"B" vi-prev-word
"C" vi-change-to
"D" vi-delete-to
"E" vi-end-word
"F" vi-char-search
"G" vi-fetch-history
"I" vi-insert-beg
"N" vi-search-again
"P" vi-put
"R" vi-replace
"S" vi-subst
"T" vi-char-search
"U" revert-line
"W" vi-next-word
"X" backward-delete-char
"Y" vi-yank-to
"\" vi-complete
"^" vi-first-print
"_" vi-yank-arg
"'" vi-goto-mark
"a" vi-append-mode
"b" vi-prev-word
"c" vi-change-to
"d" vi-delete-to
"e" vi-end-word
"f" vi-char-search
"h" backward-char
"i" vi-insertion-mode
"j" next-history
"k" prev-history
"l" forward-char
"m" vi-set-mark
"n" vi-search-again
"p" vi-put
"r" vi-change-char
"s" vi-subst
"t" vi-char-search
"u" vi-undo
"w" vi-next-word
"x" vi-delete
"y" vi-yank-to
"|" vi-column
"~" vi-change-case

SEE ALSO
The Gnu Readline Library, Brian Fox and Chet Ramey
The Gnu History Library, Brian Fox and Chet Ramey
bash(1)

FILES
~/.inputrc
Individual readline initialization file

AUTHORS
Brian Fox, Free Software Foundation
bfox AT gnu.org

Chet Ramey, Case Western Reserve University
chet AT ins.Edu

BUG REPORTS
If you find a bug in readline, you should report it. But first, you should make
sure that it really is a bug, and that it appears in the latest version of the
readline library that you have.

Once you have determined that a bug actually exists, mail a bug report to bug-read-
line@gnu.org. If you have a fix, you are welcome to mail that as well! Sugges-
tions and 'philosophical' bug reports may be mailed to bug-readline@gnu.org or
posted to the Usenet newsgroup gnu.bash.bug.

Comments and bug reports concerning this manual page should be directed to
chet AT ins.Edu.

BUGS
It's too big and too slow.

The info file is much more up-to-date. This man page conflicts with it in a few
places, but the conflicts will be resolved in a future release of readline.

GNU Readline 5.1-beta1 2005 Sep 13 READLINE(3)

Generated by $Id: phpMan.php,v 4.54 2007/08/21 09:05:22 chedong Exp $ Author: Che Dong
On Apache/2.2.3 (Red Hat)
Under GNU General Public License
2009-12-24 04:34 @127.0.0.1 CrawledBy CCBot/1.0 (+http://www.commoncrawl.org/bot.html)