[!TIP|label:references:]

eval

eval — construct command by concatenating arguments

reference:

  • example

    • without eval:
      $ foo='ls | less'
$ $foo
ls: cannot access '|': No such file or directory
ls: cannot access 'less': No such file or directory
    • with eval:
      $ foo='ls | less'
$ eval $foo
Applications
Library
System
Users
...

  • example

    $ x=10
$ y=x
$ foo='$'$x
$ echo $foo
$x

# with eval
$ eval foo='$'$x         # with eval
$ echo $foo
10

# or
$ foo=\$$x
$ eval echo $foo          # with eval
10
$ echo $foo
$x

set

[!NOTE] reference:

OPTION EXPLANATION
-a -o allexport
-b cause the status of terminated background jobs to be reported immediately
-e -o errexit
Exit immediately if a pipeline returns a non-zero status
-f Disable filename expansion (globbing)
-h -o hashall
-k -o keyword
-m -o monitor
-n -o noexec
-o option-name see option name
-p -o privileged
the $BASH_ENV and $ENV files are not processed
-t -o onecmd
-u -o unset
treat unset variables and parameters other than the special parameters '@' or '*' as an error
-v verbose.
print shell input lines as they are read
-x -o xtrace
[debug] print commands and their arguments as they are executed
-B -o braceexpand
shell will perform brace expansion
-c -o noclobber
prevent output redirection using '>', '>&', and '<>' from overwriting existing files.
-E -o errtrace
-H -o histexpand
-P do not resolve symbolic links
-T -o functrace
any trap on DEBUG and RETURN are inherited by shell functions
-- if no arguments follow this option, then the positional parameters are unset
- signal the end of options, cause all remaining arguments to be assigned to the positional parameters

show current status

  • show on/off

    $ set -o
    set -o details
    $ set -o
allexport       off
braceexpand     on
emacs           on
errexit         off
errtrace        off
functrace       off
hashall         on
histexpand      on
history         on
ignoreeof       off
interactive-comments  on
keyword         off
monitor         on
noclobber       off
noexec          off
noglob          off
nolog           off
notify          off
nounset         off
onecmd          off
physical        off
pipefail        off
posix           off
privileged      off
verbose         off
vi              off
xtrace          off

  • show +o/-o

    $ set +o
    set +o details
    $ set +o
set +o allexport
set -o braceexpand
set -o emacs
set +o errexit
set +o errtrace
set +o functrace
set -o hashall
set -o histexpand
set -o history
set +o ignoreeof
set -o interactive-comments
set +o keyword
set -o monitor
set +o noclobber
set +o noexec
set +o noglob
set +o nolog
set +o notify
set +o nounset
set +o onecmd
set +o physical
set +o pipefail
set +o posix
set +o privileged
set +o verbose
set +o vi
set +o xtrace

option name

option expression
allexport Same as -a.
braceexpand Same as -B.
emacs Use an emacs-style line editing interface.
This also affects the editing interface used for read -e.
errexit Same as -e.
errtrace Same as -E.
functrace Same as -T.
hashall Same as -h.
histexpand Same as -H.
history Enable command history, as described in Bash History Facilities. This option is on by default in interactive shells.
ignoreeof An interactive shell will not exit upon reading EOF.
keyword Same as -k.
monitor Same as -m.
noclobber Same as -C.
noexec Same as -n.
noglob Same as -f.
nolog Currently ignored.
notify Same as -b.
nounset Same as -u.
onecmd Same as -t.
physical Same as -P.
pipefail If set, the return value of a pipeline is the value of the last (rightmost) command to exit with a non-zero status, or zero if all commands in the pipeline exit successfully. This option is disabled by default.
posix Change the behavior of Bash where the default operation differs from the POSIX standard to match the standard (see Bash POSIX Mode). This is intended to make Bash behave as a strict superset of that standard.
privileged Same as -p.
verbose Same as -v.
vi Use a vi-style line editing interface. This also affects the editing interface used for read -e.
xtrace Same as -x.

shopt

set VS. shopt

  • set originates from the bourne shell (sh) and is part of the POSIX standard;

  • shopt is bourne-again shell (bash) specific

    $ set | grep -e SHELLOPTS -e BASHOPTS
# for shopt
BASHOPTS=cdspell:checkwinsize:cmdhist:complete_fullquote:expand_aliases:extglob:extquote:force_fignore:globasciiranges:histappend:interactive_comments:login_shell:progcomp:promptvars:sourcepath
# for set
SHELLOPTS=braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor

$ set -o |  column -t | grep -v off
braceexpand           on
emacs                 on
hashall               on
histexpand            on
history               on
interactive-comments  on
monitor               on

$ shopt | column -t | grep -v off
cdspell                  on
checkwinsize             on
cmdhist                  on
complete_fullquote       on
expand_aliases           on
extglob                  on
extquote                 on
force_fignore            on
globasciiranges          on
histappend               on
interactive_comments     on
login_shell              on
progcomp                 on
promptvars               on
sourcepath               on

[!TIP|label:tips:]

  • iMarslo : filename expansion check the shopt on/off ( set +o )
  • off
    $ shopt -u extglob
$ shopt extglob
extglob         off
$ echo $?
1
  • on
    $ shopt -s extglob
$ shopt extglob
extglob         on
$ echo $?
0

check without output via -q

  • on
    $ shopt -q extglob; echo $?
0
  • off
    $ shopt -q failglob; echo $?
1

shopt

shopt [-pqsu] [-o] [optname …]

option expression
-s enable ( [s]et )
-u disable ( [u]nset )
-q suppresses normal output
-o set -o

options

  • assoc_expand_once
  • autocd
  • cdable_vars
  • cdspell
  • checkhash
  • checkjobs
  • checkwinsize
  • cmdhist
  • compat31
  • compat32
  • compat40
  • compat41
  • compat42
  • compat43
  • compat44
  • complete_fullquote
  • direxpand
  • dirspell
  • dotglob
    • -s: * will including all .*
  • execfail
  • expand_aliases
  • extdebug
  • extglob
  • extquote
  • failglob
    • -s: show error msg and cmd not been exectued
  • force_fignore
  • globasciiranges
  • globstar
  • gnu_errfmt
  • histappend
  • histreedit
  • histverify
  • hostcomplete
  • huponexit
  • inherit_errexit
  • interactive_comments
  • lastpipe
  • lithist
  • localvar_inherit
  • localvar_unset
  • login_shell
  • mailwarn
  • no_empty_cmd_completion
  • nocaseglob
  • nocasematch
  • nullglob
  • progcomp
  • progcomp_alias
  • promptvars
  • restricted_shell
  • shift_verbose
  • sourcepath
  • xpg_echo

examples

  • show all status

    $ shopt | column -t
# or
$ shopt -p
    shopt | column -t
    $ shopt | column -t
autocd                   off
assoc_expand_once        off
cdable_vars              off
cdspell                  on
checkhash                off
checkjobs                off
checkwinsize             on
cmdhist                  on
compat31                 off
compat32                 off
compat40                 off
compat41                 off
compat42                 off
compat43                 off
compat44                 off
complete_fullquote       on
direxpand                off
dirspell                 off
dotglob                  off
execfail                 off
expand_aliases           on
extdebug                 off
extglob                  on
extquote                 on
failglob                 off
force_fignore            on
globasciiranges          on
globskipdots             on
globstar                 off
gnu_errfmt               off
histappend               on
histreedit               off
histverify               off
hostcomplete             off
huponexit                off
inherit_errexit          off
interactive_comments     on
lastpipe                 off
lithist                  off
localvar_inherit         off
localvar_unset           off
login_shell              on
mailwarn                 off
no_empty_cmd_completion  off
nocaseglob               off
nocasematch              off
noexpand_translation     off
nullglob                 off
patsub_replacement       on
progcomp                 on
progcomp_alias           off
promptvars               on
restricted_shell         off
shift_verbose            off
sourcepath               on
varredir_close           off
xpg_echo                 off
    shopt | column -t
    $ shopt -p
shopt -u autocd
shopt -u assoc_expand_once
shopt -u cdable_vars
shopt -s cdspell
shopt -u checkhash
shopt -u checkjobs
shopt -s checkwinsize
shopt -s cmdhist
shopt -u compat31
shopt -u compat32
shopt -u compat40
shopt -u compat41
shopt -u compat42
shopt -u compat43
shopt -u compat44
shopt -s complete_fullquote
shopt -u direxpand
shopt -u dirspell
shopt -u dotglob
shopt -u execfail
shopt -s expand_aliases
shopt -u extdebug
shopt -s extglob
shopt -s extquote
shopt -u failglob
shopt -s force_fignore
shopt -s globasciiranges
shopt -u globstar
shopt -u gnu_errfmt
shopt -s histappend
shopt -u histreedit
shopt -u histverify
shopt -u hostcomplete
shopt -u huponexit
shopt -u inherit_errexit
shopt -s interactive_comments
shopt -u lastpipe
shopt -u lithist
shopt -u localvar_inherit
shopt -u localvar_unset
shopt -s login_shell
shopt -u mailwarn
shopt -u no_empty_cmd_completion
shopt -u nocaseglob
shopt -u nocasematch
shopt -u nullglob
shopt -s progcomp
shopt -u progcomp_alias
shopt -s promptvars
shopt -u restricted_shell
shopt -u shift_verbose
shopt -s sourcepath
shopt -u xpg_echo

  • show single option

    # shopt -s sourcepath
$ shopt -q sourcepath; echo $?
0

# shopt -u xpg_echo
$ shopt -q xpg_echo; echo $?
1

  • save terminal commands in bash history in real time

    $ shopt -s histappend ; PROMPT_COMMAND="history -a;$PROMPT_COMMAND"

readline && bind

[!NOTE|label:references:]

KEY EXPLAIN
\C- control prefix
\M- meta prefix
\e an escape character
\\ backslash
\" ", a double quotation mark
\' ', a single quote or apostrophe
\a alert (bell)
\b backspace
\d delete
\f form feed
\n newline
\r carriage return
\t horizontal tab
\v vertical tab
\nnn octal value
\xHH hexadecimal value
  • more samples
    • "\e[11~" : ESC [ 1 1 ~’ : "Function Key 1"
    • keyname
      Control-u: universal-argument
Meta-Rubout: backward-kill-word
Control-o: "> output"
    • keyseq
      "\C-u": universal-argument
"\C-x\C-r": re-read-init-file
"\e[11~": "Function Key 1"
  • * useful keystrokes
EMACS COMBINATION VI RESULT
alt-. - last arg from previous command
alt-d ^[dw delete the next word on the line
alt-backspace ^[db delete backwards one word
ctrl-w ^[dT delete backwards a whole word until white space/punctuation
ctrl-k ^[D delete from the cursor to the end of the line
ctrl-u ^[d^ delete from the cursor to the start of the line
alt-f ^[E move to the end of the word
alt-b ^[w move to the start of the word
ctrl-e ^[$ move to the very end of the line
ctrl-a ^[^ move to the very start of the line

vi mode

[!NOTE]

$ cat .inputrc
set editing-mode vi
set keymap vi

# or
$ set -o vi

hybrid mode

[!TIP|label:references:]

~/.inputrc for hybrid mode
#=============================================================================
#     FileName : .inputrc
#       Author : marslo.jiao@gmail.com
#      Created : 2020-08-25 15:22:56
#   LastChange : 2024-01-13 21:08:28
#=============================================================================
# [GNU Readline Library](https://tiswww.case.edu/php/chet/readline/rluserman.html)
# [PS1](https://github.com/marslo/mylinux/blob/master/confs/home/.marslo/.env#L209)
# set the mode string and cursor to indicate the vim mode
#   - cursor shape:       `\1\e[<number> q\2` ( i.e.: `\1\e[4 q\2` )
#   - cursor shape+color: `\1\e[<nubmer> q\e]12;<color>\a\2` ( i.e.: `\1\e[1 q\e]12;orange\a\2` )
#     0: blinking block
#     1: blinking block (default)
#     2: steady block
#     3: blinking underline
#     4: steady underline
#     5: blinking bar (xterm)
#     6: steady bar (xterm)
#                                 string settings       cursor shape
#                        +------------------------------++--------+
#                           color begin         color end
#                          +------------+         +---+
set emacs-mode-string   "\1\e[38;5;240;1m\2╰╶ ᓆ \1\e[0m\2\1\e[3 q\2"
#                                      string settings              cursor shape
#                        +------------------------------------------++--------+
#                           color begin       color begin   color end
#                          +------------+       +------+      +---+
set vi-ins-mode-string  "\1\e[38;5;240;1m\2╰╶ \1\e[33;1m\2ᓎ \1\e[0m\2\1\e[5 q\2"
set vi-cmd-mode-string  "\1\e[38;5;240;1m\2╰╶ \1\e[34;1m\2ᓏ \1\e[0m\2\1\e[4 q\2"
set show-mode-in-prompt on

# allow iso-latin1 characters to be inserted
set convert-meta                   off
# don't strip characters to 7 bits when reading
set input-meta                     on
set completion-ignore-case         on
set show-all-if-ambiguous          on
set show-all-if-unmodified         on
set mark-symlinked-directories     on
set print-completions-horizontally on
# https://github.com/scop/bash-completion
set visible-stats                  on
set enable-bracketed-paste         off
# https://groups.google.com/g/iterm2-discuss/c/K6YazwKUvjQ/m/7eqeT-AvBgAJ

# TAB: menu-complete
# set colored-completion-prefix on
set colored-stats                  on
set skip-completed-text            on
# ask if more than 100 candidates
# set completion-query-items       100

set keymap emacs
"\ee": vi-editing-mode

# https://www.usenix.org.uk/content/bash.html#input
set keymap vi-command
"\ee": emacs-editing-mode
# key bindings to get out of vi-editing-mode
"v"  : ''
"#": insert-comment
"dw": kill-word
"dd": kill-whole-line
"db": backward-kill-word
"D":kill-line
"da\"": "lF\"df\""
"di\"": "lF\"lmtf\"d`t"
"ci\"": "di\"i"
"da'": "lF'df'"
"di'": "lF'lmtf'd`t"
"ci'": "di'i"
"da`": "lF\`df\`"
"di`": "lF\`lmtf\`d`t"
"ci`": "di`i"
"ca`": "da`i"
"da(": "lF(df)"
"di(": "lF(lmtf)d`t"
"ci(": "di(i"
"ca(": "da(i"
"da)": "lF(df)"
"di)": "lF(lmtf)d`t"
"ci)": "di(i"
"ca)": "da(i"
"da{": "lF{df}"
"di{": "lF{lmtf}d`t"
"ci{": "di{i"
"ca{": "da{i"
"da}": "lF{df}"
"di}": "lF{lmtf}d`t"
"ci}": "di}i"
"ca}": "da}i"
"da[": "lF[df]"
"di[": "lF[lmtf]d`t"
"ci[": "di[i"
"ca[": "da[i"
"da]": "lF[df]"
"di]": "lF[lmtf]d`t"
"ci]": "di]i"
"ca]": "da]i"
"da<": "lF<df>"
"di<": "lF<lmtf>d`t"
"ci<": "di<i"
"ca<": "da<i"
"da>": "lF<df>"
"di>": "lF<lmtf>d`t"
"ci>": "di>i"
"ca>": "da>i"
"da/": "lF/df/"
"di/": "lF/lmtf/d`t"
"ci/": "di/i"
"ca/": "da/i"
"da:": "lF:df:"
"di:": "lF:lmtf:d`t"
"ci:": "di:i"
"ca:": "da:i"
"\C-_": undo
"\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-k": kill-line
"\C-l": clear-screen
"\C-p": previous-history
"\C-n": next-history
"\C-w": unix-word-rubout
"\C-q": quoted-insert
"\C-x\C-r": re-read-init-file
"\e#": insert-comment
"\e.": insert-last-argument
"\e.": yank-last-arg

set keymap vi-insert
"\ee": emacs-editing-mode
"\C-_": undo
"\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-k": kill-line
"\C-l": clear-screen
"\C-p": previous-history
"\C-n": next-history
"\C-w": unix-word-rubout
"\C-q": quoted-insert
"\C-x\C-r": re-read-init-file
"\e#": insert-comment
"\e.": insert-last-argument
"\e.": yank-last-arg

show-mode-in-prompt

[!NOTE|label:notes:] This is a patched version of bash 4.3.48 that adds support for custom prompt mode indicators.
It also adds support for a \m prompt escape to specify where in the prompt the indicator should occur.

NUMBER CURSOR SHAPE
0 blinking block
1 blinking block (default)
2 steady block
3 blinking underline
4 steady underline
5 blinking bar (xterm)
6 steady bar (xterm)
bash show-mode-in-prompt
1.2.1.1.1 -- bash show-mode-in-prompt
bash show-mode-in-prompt
1.2.1.1.2 -- bash show-mode-in-prompt

  • change cursor shape

    [!NOTE|label:references:]

    set emacs-mode-string   \1\e[4 q\e]12;red\a\2
set vi-ins-mode-string  \1\e[5 q\e]12;green\a\2
set vi-cmd-mode-string  \1\e[4 q\e]12;orange\a\2

# or
set  emacs-mode-string "\1\e[3 q\2"
set vi-ins-mode-string "\1\e[5 q\2"
set vi-cmd-mode-string "\1\e[4 q\2"
    bash show-mode-in-prompte change cursor shape
    1.2.1.1.3 -- bash show-mode-in-prompte change cursor shape

PS1

[!NOTE|label:see also:]

PS1='\n\[\033[1m\]\[\033[38;5;240m\]╭╶ (\u@\h\[\033[1m\] '
PS1+='\[\033[0;31m\]\w\[\033[1m\]\[\033[38;5;240m\]) '
PS1+='$(__git_ps1 "- (\[\033[32;2m\]%s\[\033[0m\]\[\033[38;5;240m\]) ")\[\033[1m\]'
PS1+='\[\033[38;5;240m\]`if [ $? = 0 ]; then echo \[\033[38\;5\;240m\]\-\>; else echo \[\033[0\;31m\]\-\>; fi`\[\033[1m\]'
PS1+='\n\[\033[38;5;240m\] $ \[\033[1m\]\[\033[0m\]'
export PS1

inputrc

set show-mode-in-prompt on
#                                 string settings       cursor shape
#                        +------------------------------++--------+
#                           color begin         color end
#                          +------------+         +---+
set emacs-mode-string   "\1\e[38;5;240;1m\2╰╶ ᓆ \1\e[0m\2\1\e[3 q\2"
#                                      string settings              cursor shape
#                        +------------------------------------------++--------+
#                           color begin       color begin   color end
#                          +------------+       +------+      +---+
set vi-ins-mode-string  "\1\e[38;5;240;1m\2╰╶ \1\e[33;1m\2ᓎ \1\e[0m\2\1\e[5 q\2"
set vi-cmd-mode-string  "\1\e[38;5;240;1m\2╰╶ \1\e[34;1m\2ᓏ \1\e[0m\2\1\e[4 q\2"

set keymap emacs
"\ee": vi-editing-mode

set keymap vi-command
"\ee": emacs-editing-mode

set keymap vi-insert
"\ee": vi-movement-mode
bind -v for mode-string
1.2.1.1.4 -- bind -v for mode-string

  • example

    $ export PS1=" ┌錄 \[\e[32m\]\u\[\e[m\]\[\e[32m\]@\[\e[m\]\[\e[32m\]\h\[\e[m\] \w \\$ \n "
$ bind 'set show-mode-in-prompt on'
$ bind 'set vi-ins-mode-string " └──錄 (ins):"'
$ bind 'set vi-cmd-mode-string " └──錄 (cmd):"'

  • example

    #################### VIM ####################
# FOR MORE INFORMATION CHECK:
# https://wiki.archlinux.org/index.php/Readline

# TURN ON VIM (E.G. FOR READLINE)
set editing-mode vi

# SHOW THE VIM MODE IN THE PROMPT (COMMAND OR INSERT)
set show-mode-in-prompt on

# SET THE MODE STRING AND CURSOR TO INDICATE THE VIM MODE
#   FOR THE NUMBER AFTER `\e[`:
#     0: blinking block
#     1: blinking block (default)
#     2: steady block
#     3: blinking underline
#     4: steady underline
#     5: blinking bar (xterm)
#     6: steady bar (xterm)
set vi-ins-mode-string (ins)\1\e[5 q\2
set vi-cmd-mode-string (cmd)\1\e[1 q\2

  • example

    $ cat ~/.inputrc
set editing-mode vi
set vi-ins-mode-string \1\e[5 q\e]12;green\a\2
set vi-cmd-mode-string \1\e[1 q\e]12;orange\a\2
set show-mode-in-prompt on

  • example

    # Set the default readline mode as vi
set editing-mode vi

# Show the vi mode indicators
set show-mode-in-prompt on

# The following is a little hard to understand
# a full example omiting the wrapping \1 and \2
#
# \e[     (open sequence: ESC CSI)
# 48;5;   (specifies 256 bg)
# 2       (bg color)
# m       (end)
# 1;      (bold)
# 38;5;   (specifies 256 fg)
# 0       (fg color)
# m       (end)
# COMMAND (some text to display)
# \e[     (open sequence)
# 0       (reset)
# m       (end)
# \e[     (open sequence)
# 0       (cursor type)
# q       (end)

# Configures the cmd mode display
set vi-cmd-mode-string "\1\e[48;5;2m\2\1\e[1;38;5;0m\2 N \1\e[0m\2 \1\e[0 q\2"

# Configures the ins mode display
set vi-ins-mode-string "\1\e[48;5;4m\2\1\e[1;38;5;0m\2 I \1\e[0m\2 \1\e[6 q\2"

show options

# display readline variable names and values can be used as input or in a Readline initialization file
$ bind -v

# list current readline variable names and values
$ bind -v
set bind-tty-special-chars on
set blink-matching-paren off
set byte-oriented off
set colored-completion-prefix off
set colored-stats on
set completion-ignore-case on
set completion-map-case off
set convert-meta off
set disable-completion off
set echo-control-characters on
set enable-active-region off
set enable-bracketed-paste off
set enable-keypad off
set enable-meta-key on
set expand-tilde off
set history-preserve-point off
set horizontal-scroll-mode off
set input-meta on
set mark-directories on
set mark-modified-lines off
set mark-symlinked-directories on
set match-hidden-files on
set menu-complete-display-prefix off
set meta-flag on
set output-meta on
set page-completions on
set prefer-visible-bell on
set print-completions-horizontally on
set revert-all-at-newline off
set show-all-if-ambiguous on
set show-all-if-unmodified on
set show-mode-in-prompt on
set skip-completed-text on
set visible-stats on
set bell-style audible
set comment-begin #
set completion-display-width -1
set completion-prefix-display-length 0
set completion-query-items 100
set editing-mode emacs
set emacs-mode-string ╰╶ ᓆ
set history-size 5000
set keymap emacs
set keyseq-timeout 500
set vi-cmd-mode-string ╰╶ ᓏ
set vi-ins-mode-string ╰╶ ᓎ

options

  • active-region-start-color
  • active-region-end-color
  • bell-style
  • bind-tty-special-chars
  • blink-matching-paren
  • colored-completion-prefix
  • colored-stats
  • comment-begin
  • completion-display-width
  • completion-ignore-case
  • completion-map-case
  • completion-prefix-display-length
  • completion-query-items
  • convert-meta
  • disable-completion
  • echo-control-characters
  • editing-mode
  • emacs-mode-string
  • enable-active-region
  • enable-bracketed-paste
  • enable-keypad
  • enable-meta-key
  • expand-tilde
  • history-preserve-point
  • history-size
  • horizontal-scroll-mode
  • input-meta
  • isearch-terminators
  • keymap
  • keyseq-timeout
  • mark-directories
  • mark-modified-lines
  • mark-symlinked-directories
  • match-hidden-files
  • menu-complete-display-prefix
  • output-meta
  • page-completions
  • print-completions-horizontally
  • revert-all-at-newline
  • show-all-if-ambiguous
  • show-all-if-unmodified
  • show-mode-in-prompt
  • skip-completed-text
  • vi-cmd-mode-string
  • vi-ins-mode-string
  • visible-stats

key bindings

# display readline function names and bindings can be used as input or in a readline initialization file
$ bind -p

# list current readline function names and bindings
$ bind -P

## query
$ bind -p
...
"\e&": tilde-expand
# vi-tilde-expand (not bound)
....

$ bind -q tilde-expand
tilde-expand can be invoked via "\e&".
example : option+&
1.2.1.1.5 -- example : option+&

list all names

$ bind -l

inputrc

~/.inputrc
# https://www.gnu.org/software/bash/manual/bash.html#index-show_002dmode_002din_002dprompt
set show-mode-in-prompt on
# SET THE MODE STRING AND CURSOR TO INDICATE THE VIM MODE
#   FOR THE NUMBER AFTER `\e[`:
#     0: blinking block
#     1: blinking block (default)
#     2: steady block
#     3: blinking underline
#     4: steady underline
#     5: blinking bar (xterm)
#     6: steady bar (xterm)
set emacs-mode-string  ╰╶ ᓆ
set vi-ins-mode-string ╰╶ ᓎ
set vi-cmd-mode-string ╰╶ ᓏ
set emacs-mode-string  \1\e[38;5;240;1m\2╰╶ ᓆ \1\e[0m\2
set vi-ins-mode-string \1\e[38;5;240;1m\2╰╶ \1\e[33;1m\2ᓎ \1\e[0m\2
set vi-cmd-mode-string \1\e[38;5;240;1m\2╰╶ \1\e[34;1m\2ᓏ \1\e[0m\2

# allow iso-latin1 characters to be inserted
set convert-meta off
# don't strip characters to 7 bits when reading
set input-meta on
set completion-ignore-case on
set show-all-if-ambiguous on
set show-all-if-unmodified on
set mark-symlinked-directories on
set print-completions-horizontally on
# https://github.com/scop/bash-completion
set visible-stats on
# https://groups.google.com/g/iterm2-discuss/c/K6YazwKUvjQ/m/7eqeT-AvBgAJ
set enable-bracketed-paste off

# TAB: menu-complete
# set colored-completion-prefix on
set colored-stats on
set skip-completed-text on
# ask if more than 100 candidates
# set completion-query-items 100

set keymap emacs
"\ee": vi-editing-mode

set keymap vi-command
"\ee": emacs-editing-mode
"dw": kill-word
"dd": kill-whole-line
"db": backward-kill-word
"D":kill-line
"v"  : ''
"\C-_": undo
"\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-k": kill-line
"\C-l": clear-screen
"\C-p": previous-history
"\C-n": next-history
"\C-w": unix-word-rubout
"\C-q": quoted-insert
"\C-x\C-r": re-read-init-file
"\e#": insert-comment
"\e.": insert-last-argument
"\e.": yank-last-arg

# key bindings to get out of vi-editing-mode
set keymap vi-insert
"\ee": emacs-editing-mode
"\C-_": undo
"\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-k": kill-line
"\C-l": clear-screen
"\C-p": previous-history
"\C-n": next-history
"\C-w": unix-word-rubout
"\C-q": quoted-insert
"\C-x\C-r": re-read-init-file
"\e#": insert-comment
"\e.": insert-last-argument
"\e.": yank-last-arg
~/.inputrc.if-endif
# https://www.gnu.org/software/bash/manual/bash.html#index-show_002dmode_002din_002dprompt
set show-mode-in-prompt on
# SET THE MODE STRING AND CURSOR TO INDICATE THE VIM MODE
#   FOR THE NUMBER AFTER `\e[`:
#     0: blinking block
#     1: blinking block (default)
#     2: steady block
#     3: blinking underline
#     4: steady underline
#     5: blinking bar (xterm)
#     6: steady bar (xterm)

set emacs-mode-string  ╰╶ ᓆ
set vi-ins-mode-string ╰╶ ᓎ
set vi-cmd-mode-string ╰╶ ᓏ
set emacs-mode-string  \1\e[38;5;240;1m\2╰╶ ᓆ \1\e[0m\2
set vi-ins-mode-string \1\e[38;5;240;1m\2╰╶ \1\e[33;1m\2ᓎ \1\e[0m\2
set vi-cmd-mode-string \1\e[38;5;240;1m\2╰╶ \1\e[34;1m\2ᓏ \1\e[0m\2

####################
# \e : Meta        #
# \C : Control     #
####################

# allow iso-latin1 characters to be inserted
set convert-meta off
# don't strip characters to 7 bits when reading
set input-meta on
set completion-ignore-case on
set show-all-if-ambiguous on
set show-all-if-unmodified on
set mark-symlinked-directories on
set print-completions-horizontally on
# https://github.com/scop/bash-completion
set visible-stats on
# https://groups.google.com/g/iterm2-discuss/c/K6YazwKUvjQ/m/7eqeT-AvBgAJ
set enable-bracketed-paste off

# TAB: menu-complete
# set colored-completion-prefix on
set colored-stats on
set skip-completed-text on
# ask if more than 100 candidates
# set completion-query-items 100

set keymap emacs
"\ee": vi-editing-mode

set keymap vi-command
"\ee": emacs-editing-mode

# key bindings to get out of vi-editing-mode
set keymap vi-insert
"\ee": vi-movement-mode

##### emacs #####
$if mode=emacs
"\ee": vi-editing-mode                       # `Esc-e`:vi-insert. https://unix.stackexchange.com/a/409866/29178
# "\e\e": vi-movement-mode
"\e~": complete-username
"\e_": yank-last-arg
"\e?": possible-completions
Meta-Control-h: backward-kill-word
$endif

##### vi #####
$if mode=vi
"\ee": emacs-editing-mode
$endif

##### command mode #####
$if mode=vi-command
"\ee": emacs-editing-mode

v: ""
Control-a: beginning-of-line
Control-b: backward-char
Control-d: delete-char
Control-e: end-of-line
Control-f: forward-char
Control-k: kill-line
Control-n: next-history
Control-p: previous-history
$endif

##### insert mode #####
$if mode=vi-insert
"\ee": emacs-editing-mode

"\C-k": kill-line
"\C-u": unix-line-discard
"\C-p": previous-history
"\C-n": next-history
"\C-a": beginning-of-line
"\C-e": end-of-line
"\C-f": forward-char
"\C-b": backward-char
"\C-l": clear-screen
"\C-d": delete-char
"\C-h": backward-delete-char
"\C-w": unix-word-rubout

"\et": transpose-words
"\ef": forward-word
"\eb": backward-word
"\ed": kill-word
"\e.":yank-last-arg
"\e_": yank-last-arg
"\C-_": undo
$endif

$if Bash
# edit the path
"\C-xp": "PATH=${PATH}\e\C-e\C-a\ef\C-f"
# Quote the current or previous word
"\C-xq": "\eb\"\ef\""
$endif
~/.inputrc.old
$ cat ~/.inputrc
set convert-meta off                          # allow iso-latin1 characters to be inserted
set input-meta on                             # don't strip characters to 7 bits when reading
set completion-ignore-case on
set show-all-if-ambiguous on
set show-all-if-unmodified on
set mark-symlinked-directories on
set print-completions-horizontally on
set enable-bracketed-paste off                # https://groups.google.com/g/iterm2-discuss/c/K6YazwKUvjQ/m/7eqeT-AvBgAJ
# set show-mode-in-prompt on
# TAB: menu-complete
# set colored-completion-prefix on
# set colored-stats on
set skip-completed-text on

# set completion-query-items 100              # ask if more than 100 candidates

# https://unix.stackexchange.com/a/409866/29178
set keymap emacs
$if mode=emacs
"\ee": vi-editing-mode
$endif

set keymap vi-insert
$if mode=vi-insert
"\e": vi-movement-mode
# "jk": vi-movement-mode
# "kj": vi-movement-mode
$endif

# set editing-mode vi

# command mode
set keymap vi-command
$if mode=vi-command
"\ee": emacs-editing-mode

v: ""
Control-a: beginning-of-line
Control-b: backward-char
Control-d: delete-char
Control-e: end-of-line
Control-f: forward-char
Control-k: kill-line
Control-n: next-history
Control-p: previous-history
$endif

# insert mode
set keymap vi-insert

$if mode=vi-insert
"\C-k": kill-line
"\C-u": unix-line-discard
"\C-p": previous-history
"\C-n": next-history
"\C-a": beginning-of-line
"\C-e": end-of-line
"\C-f": forward-char
"\C-b": backward-char
"\C-l": clear-screen
"\C-d": delete-char
"\C-h": backward-delete-char
"\C-w": unix-word-rubout

"\et": transpose-words
"\ef": forward-word
"\eb": backward-word
"\ed": kill-word
"\e.":yank-last-arg
"\e_": yank-last-arg
"\C-_": undo
$endif
/etc/inputrc
$ cat /etc/inputrc
# do not bell on tab-completion
#set bell-style none

set meta-flag on
set input-meta on
set convert-meta off
set output-meta on

# Completed names which are symbolic links to
# directories have a slash appended.
set mark-symlinked-directories on

$if mode=emacs

# for linux console and RH/Debian xterm
"\e[1~": beginning-of-line
"\e[4~": end-of-line
# commented out keymappings for pgup/pgdown to reach begin/end of history
#"\e[5~": beginning-of-history
#"\e[6~": end-of-history
"\e[5~": history-search-backward
"\e[6~": history-search-forward
"\e[3~": delete-char
"\e[2~": quoted-insert
"\e[5C": forward-word
"\e[5D": backward-word
"\e[1;5C": forward-word
"\e[1;5D": backward-word

# for rxvt
"\e[8~": end-of-line
"\eOc": forward-word
"\eOd": backward-word

# for non RH/Debian xterm, can't hurt for RH/DEbian xterm
"\eOH": beginning-of-line
"\eOF": end-of-line

# for freebsd console
"\e[H": beginning-of-line
"\e[F": end-of-line
$endif

unbind

[!NOTE]

# .bashrc
stty werase undef

# .inputrc
bind '"\C-w":kill-region'

tips

  • How to move the cursor word by word in the OS X Terminal

    $ bind -q backward-word
backward-word can be invoked via "\M-b".

$ bind -q forward-word
forward-word can be invoked via "\M-f".

  • re-read-init-file

    $ bind -q re-read-init-file
re-read-init-file can be invoked via "\C-x\C-r".

# or https://unix.stackexchange.com/a/246422/29178
$ bind -f ~/.inputrc

  • glob-list-expansions

    $ bind -q glob-list-expansions
glob-list-expansions can be invoked via "\C-xg"

  • insert-comment

    $ bind -q insert-comment
insert-comment can be invoked via "\e#".

  • insert-last-argument

    $ bind -q insert-last-argument
insert-last-argument can be invoked via "\e.", "\e_".

  • upcase-word && downcase-word && capitalize-word

    $ bind -q upcase-word
upcase-word can be invoked via "\eu".

$ bind -q downcase-word
downcase-word can be invoked via "\el"

$ bind -q capitalize-word
capitalize-word can be invoked via "\ec".

  • block cursor

    set editing-mode vi
set show-mode-in-prompt on
set vi-ins-mode-string \1\e[6 q\2
set vi-cmd-mode-string \1\e[2 q\2

# optionally:
# switch to block cursor before executing a command
set keymap vi-insert
RETURN: "\e\n"

  • undo

    $ bind -q undo
undo can be invoked via "\C-x\C-u", "\C-_".

  • hell-expand-line

    $ bind -q shell-expand-line
shell-expand-line can be invoked via "\M-\C-e".

  • display-shell-version

    $ bind -q display-shell-version
display-shell-version can be invoked via "\C-x\C-v".
Copyright © marslo 2020-2024 all right reserved，powered by GitbookLast Modified: 2024-10-30 04:30:28

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