Help (Mastering Emacs—Notes and Outline)

3 Help

‘C-h ...’: Prefix for all things helpish.
‘C-h a’: apropos-command search for commands (interactive functions); with a prefix argument, search for non-interactive functions also.
‘M-x apropos’: search for functions and variables
‘C-h d’: apropos-documentation

Function: apropos-documentation pattern [do-all] ¶

Show symbols whose documentation contains matches for PATTERN.

PATTERN

word; search for matches for that word as a substring;
list of words separated by spaces; search for matches for any two or more of thos words;
regexp;

internal-doc-file-name

‘<emacs-path>/etc/DOC’ By default this command only searches in the file specified by this variable. When invoked with a ‘C-u’ prefix, or if the variable apropos-do-all is non-nil, it searches ALL currently defined documentation strings.

‘C-h f’: describe-function
‘C-h v’: describe-variable
‘C-h o’: describe-symbol
‘C-h F’: Info-goto-emacs-command-node
‘C-h i’: info