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20 Minibuffers

A minibuffer is a special buffer that Emacs commands use to read arguments more complicated than the single numeric prefix argument. These arguments include file names, buffer names, and command names (as in M-x). The minibuffer is displayed on the bottom line of the frame, in the same place as the echo area (see The Echo Area), but only while it is in use for reading an argument.

Intro to Minibuffers  Basic information about minibuffers.
Text from Minibuffer  How to read a straight text string.
Object from Minibuffer  How to read a Lisp object or expression.
Minibuffer History  Recording previous minibuffer inputs so the user can reuse them.
Initial Input  Specifying initial contents for the minibuffer.
Completion  How to invoke and customize completion.
Yes-or-No Queries  Asking a question with a simple answer.
Multiple Queries  Asking complex questions.
Reading a Password  Reading a password from the terminal.
Minibuffer Commands  Commands used as key bindings in minibuffers.
Minibuffer Windows  Operating on the special minibuffer windows.
Minibuffer Contents  How such commands access the minibuffer text.
Recursive Mini  Whether recursive entry to minibuffer is allowed.
Minibuffer Misc  Various customization hooks and variables.