Buffers and Windows Vi Commands Viewing the Buffer
We have the following commands related to files. They are used to visit, save and insert files.
v file RET
|
Visit specified file in the current window ( |
V file RET
|
Visit specified file in another window (vip-find-file-other-window ).
|
X S | Save current buffer to the file associated with the buffer. If no file is associated with the buffer, the name of the file to write out the content of the buffer will be asked in the minibuffer. |
X W file RET
|
Write current buffer into a specified file. |
X I file RET
|
Insert a specified file at point. |
g | Give information on the file associated with the current buffer. Tell you
the name of the file associated with the buffer, the line number of the
current point and total line numbers in the buffer. If no file is
associated with the buffer, this fact will be indicated by the null file
name `"" '.
|
In Emacs, you can edit a file by visiting it. If you wish to visit a
file in the current window, you can just type v. Emacs maintains the
default directory which is specific to each buffer. Suppose, for
instance, that the default directory of the current buffer is
`/usr/masahiko/lisp/
'. Then you will get the following prompt in the
minibuffer.
visit file: /usr/masahiko/lisp/
If you wish to visit, say, `vip.el
' in this directory, then you can
just type `vip.el
' followed by RET
. If the file `vip.el
'
already exists in the directory, Emacs will visit that file, and if not,
the file will be created. Emacs will use the file name (`vip.el
', in
this case) as the name of the buffer visiting the file. In order to make
the buffer name unique, Emacs may append `<2>
', `<3>
' etc., to
the buffer name. As the file name completion is provided here, you
can sometime save typing. For instance, suppose there is only one file in the
default directory whose name starts with `v
', that is `vip.el
'.
Then if you just type v TAB
then it will be completed to
`vip.el
'. Thus, in this case, you just have to type v v TAB
RET
to visit `/usr/masahiko/lisp/vip.el
'. Continuing the
example, let us now suppose that you wished to visit the file
`/usr/masahiko/man/vip.texinfo
'. Then to the same prompt which you get
after you typed v, you can enter `/usr/masahiko/man/vip.texinfo
' or
`../man/vip.texinfo
' followed by RET
.
Use V instead of v, if you wish to visit a file in another window.
You can verify which file you are editing by typing g. (You can also type X B to get nformation on other buffers too.) If you type g you will get an information like below in the echo area:
"/usr/masahiko/man/vip.texinfo" line 921 of 1949
After you edited the buffer (`vip.texinfo
', in our example) for a while,
you may wish to save it in a file. If you wish to save it in the file
associated with the buffer (`/usr/masahiko/man/vip.texinfo
', in this
case), you can just say X S. If you wish to save it in another file,
you can type X W. You will then get a similar prompt as you get for
v, to which you can enter the file name.