Readline Keyboard Shortcuts¶

The milk CLI uses the GNU Readline library for line editing. This page lists the most useful keybindings.

Tip

For the complete reference, see the official Readline User Manual.

See also: CLI Overview · CLI Syntax · Scripting

Notation¶

Prefix	Meaning
`C-x`	Hold Ctrl and press x
`M-x`	Hold Alt/Meta and press x (or press Esc then x)

Key	Action
`C-a`	Move to start of line
`C-e`	Move to end of line
`M-f`	Move forward one word
`M-b`	Move backward one word
`C-l`	Clear screen, reprint current line

Editing¶

Key	Action
`C-_` / `C-x C-u`	Undo last edit
`C-t`	Transpose characters
`M-t`	Transpose words
`M-u`	Uppercase current word
`M-l`	Lowercase current word
`M-c`	Capitalize current word

Kill & Yank (Cut & Paste)¶

Key	Action
`C-k`	Kill from cursor to end of line
`C-w`	Kill previous word (whitespace-delimited)
`M-d`	Kill from cursor to end of word
`M-DEL`	Kill from cursor to start of word
`C-y`	Yank (paste) most recently killed text
`M-y`	Rotate kill-ring after `C-y`

History¶

Key	Action
`↑` / `C-p`	Previous history entry
`↓` / `C-n`	Next history entry
`C-r`	Reverse incremental search
`M-<`	Jump to first history entry
`M->`	Jump to last (current) entry

Completion¶

Key	Action
`TAB`	Autocomplete (commands, filenames)
`M-?`	List possible completions
`M-*`	Insert all completions

← CLI Overview · Documentation Index

[FPS]: Function Processing System — shared-memory parameter management [SHM]: Shared Memory (/dev/shm) [AO]: Adaptive Optics [TUI]: Text User Interface (ANSI escape sequences) [CLI]: Command Line Interface [IMGID]: Image ID — milk's stream reference structure [LTO]: Link-Time Optimization [PGO]: Profile-Guided Optimization [RT]: Real-Time (scheduling) [DM]: Deformable Mirror [WFS]: Wavefront Sensor [FITS]: Flexible Image Transport System *[IPC]: Inter-Process Communication