Emacs: Find Function, Command, Variable

By Xah Lee. Date: . Last updated: .

In emacs, a command means a function that can be called interactively (by typing Alt+x).

Find Function, Command, Variable

Alt+x apropos
List all Symbol (commands, functions, variables, faces) whose names match a Regular Expression pattern.
Alt+x apropos-command
List all commands whose names match a Regular Expression pattern.
Ctrl+u Alt+x apropos-command
List all commands and functions whose names match a Regular Expression pattern.
Alt+x apropos-variable
List all variable whose names match a Regular Expression pattern.
Alt+x apropos-value
List all variable names whose values match a Regular Expression pattern.

Search in Manual

Emacs comes with Emacs manual and emacs lisp manual. [see Emacs: View Info Page]

Alt+x elisp-index-search
Search the emacs lisp manual.
Alt+x emacs-index-search
Search the emacs manual.

Reference

Emacs/Elisp Doc Lookup