GNU Info
(emacs)Misc Buffer
Miscellaneous Buffer Operations
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`C-x C-q'
Toggle read-only status of buffer (`vc-toggle-read-only').
`M-x rename-buffer <RET> NAME <RET>'
Change the name of the current buffer.
`M-x rename-uniquely'
Rename the current buffer by adding `<NUMBER>' to the end.
`M-x view-buffer <RET> BUFFER <RET>'
Scroll through buffer BUFFER.
A buffer can be "read-only", which means that commands to change its
contents are not allowed. The mode line indicates read-only buffers
with `%%' or `%*' near the left margin. Read-only buffers are usually
made by subsystems such as Dired and Rmail that have special commands
to operate on the text; also by visiting a file whose access control
says you cannot write it.
If you wish to make changes in a read-only buffer, use the command
`C-x C-q' (`vc-toggle-read-only'). It makes a read-only buffer
writable, and makes a writable buffer read-only. In most cases, this
works by setting the variable `buffer-read-only', which has a local
value in each buffer and makes the buffer read-only if its value is
non-`nil'. If the file is maintained with version control, `C-x C-q'
works through the version control system to change the read-only status
of the file as well as the buffer. Note: Version Control.
`M-x rename-buffer' changes the name of the current buffer. Specify
the new name as a minibuffer argument. There is no default. If you
specify a name that is in use for some other buffer, an error happens
and no renaming is done.
`M-x rename-uniquely' renames the current buffer to a similar name
with a numeric suffix added to make it both different and unique. This
command does not need an argument. It is useful for creating multiple
shell buffers: if you rename the `*Shell*' buffer, then do `M-x shell'
again, it makes a new shell buffer named `*Shell*'; meanwhile, the old
shell buffer continues to exist under its new name. This method is
also good for mail buffers, compilation buffers, and most Emacs
features that create special buffers with particular names.
`M-x view-buffer' is much like `M-x view-file' (Note: Misc File
Ops) except that it examines an already existing Emacs buffer. View
mode provides commands for scrolling through the buffer conveniently
but not for changing it. When you exit View mode with `q', that
switches back to the buffer (and the position) which was previously
displayed in the window. Alternatively, if you exit View mode with
`e', the buffer and the value of point that resulted from your perusal
remain in effect.
The commands `M-x append-to-buffer' and `M-x insert-buffer' can be
used to copy text from one buffer to another. Note: Accumulating
Text.
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