bell-style

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 (the default), Readline attempts to ring the terminal’s bell.

bind-tty-special-chars

If set to on, Readline attempts to bind the control characters treated specially by the kernel’s terminal driver to their Readline equivalents.

comment-begin

The string to insert at the beginning of the line when the insert-comment command is executed. The default value is #.

completion-ignore-case

If set to on, Readline performs filename matching and completion in a case-insensitive fashion. The default value is off.

completion-query-items

The number of possible completions that determines when the user is asked whether the list of possibilities should be displayed. If the number of possible completions is greater than this value, Readline will ask the user whether he wishes to view them; otherwise, they are simply listed. This variable must be set to an integer value greater than or equal to 0. A negative value means Readline should never ask. The default limit is 100.

convert-meta

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 an Esc character, converting them to a meta-prefixed key sequence. The default value is on.

disable-completion

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. The default is off.

editing-mode

The editing-mode variable controls which default set of key bindings is used. By default, Readline starts up in Emacs editing mode, where the keystrokes are most similar to Emacs. This variable can be set to either emacs or vi.

enable-keypad

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. The default is off.

expand-tilde

If set to on, tilde (~) expansion is performed when Readline attempts word completion. The default is off.

history-preserve-point

If set to on, the history code attempts to place the point (the current cursor position) at the same location on each history line retrieved with previous-history or next-history. The default is off.

horizontal-scroll-mode

This variable can be set to either on or off. Setting it to on means that the text of the lines being edited will scroll horizontally on a single screen line when they are longer than the width of the screen, instead of wrapping onto a new screen line. By default, this variable is set to off.

input-meta

If set to on, Readline will enable eight-bit input (it will not clear the eighth bit in the characters it reads), regardless of what the terminal claims it can support. The default value is off. The name meta-flag is a synonym for this variable.

isearch-terminators

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

Sets Readline’s idea of the current keymap for key binding commands. Acceptable keymap names are 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-standard. The default value is emacs. The value of the editing- mode variable also affects the default keymap.

mark-directories

If set to on, completed directory names have a slash appended. The default is on.

mark-modified-lines

This variable, when set to on, causes Readline to display an asterisk (*) at the start of history lines that have been modified. This variable is off by default.

mark-symlinked-directories

If set to on, completed names which are symbolic links to directories have a slash appended (subject to the value of mark-directories). The default is off.

match-hidden-files

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. This variable is on by default.

output-meta

If set to on, Readline will display characters with the eighth bit set directly rather than as a meta-prefixed escape sequence. The default is off.

page-completions

If set to on, Readline uses an internal more-like pager to display a screenful of possible completions at a time. This variable is on by default.

print-completions-horizontally

If set to on, Readline will display completions with matches sorted horizontally in alphabetical order, rather than down the screen. The default is off.

show-all-if-ambiguous

This alters the default behavior of the completion functions. If set to on, words that have more than one possible completion cause the matches to be listed immediately instead of ringing the bell. The default value is off.

show-all-if-unmodified

This alters the default behavior of the completion functions in a fashion similar to show-all-if-ambiguous. If set to on, words that have more than one possible completion without any possible partial completion (the possible completions don’t share a common prefix) cause the matches to be listed immediately instead of ringing the bell. The default value is off.

visible-stats

If set to on, a character denoting a file’s type is appended to the filename when listing possible completions. The default is off.