readline

Line editing and input history library

TLDR

View readline keybindings

$ bind -P

Edit inputrc

$ vi ~/.inputrc

Set vi mode

$ set -o vi

Set emacs mode

$ set -o emacs

DESCRIPTION

Readline is a library providing command-line editing, history, and tab completion. It's used by bash, gdb, python, and many other programs. Configuration is via ~/.inputrc.

EXAMPLES

$ # List current bindings
bind -P | grep search

# Bind key in session
bind '"\e[A": history-search-backward'

# Check editing mode
echo $SHELLOPTS | tr ':' '\n' | grep -E 'vi|emacs'

$ # ~/.inputrc

# Case insensitive completion
set completion-ignore-case on

# Show all completions on first tab
set show-all-if-ambiguous on

# Vi mode
set editing-mode vi

# Key bindings
"\e[A": history-search-backward
"\e[B": history-search-forward
"\C-p": history-search-backward

COMMON KEYBINDINGS (Emacs mode)

$ Ctrl+a    - Beginning of line
Ctrl+e    - End of line
Ctrl+k    - Kill to end of line
Ctrl+u    - Kill to beginning
Ctrl+w    - Kill word backward
Ctrl+y    - Yank (paste)
Ctrl+r    - Reverse search history
Ctrl+l    - Clear screen
Alt+f     - Forward word
Alt+b     - Backward word