xemacs-beta: man/new-users-guide/files.texi comparison

comparison man/new-users-guide/files.texi @ 444:576fb035e263 r21-2-37

Import from CVS: tag r21-2-37

author	cvs
date	Mon, 13 Aug 2007 11:36:19 +0200
parents	3ecd8885ac67
children	f43f9ca6c7d9

comparison

equal deleted inserted replaced

-:a8296e22da4e
+:576fb035e263
 @cindex files
 The basic unit of stored data in Unix is the @dfn{file}.  To edit a file,
 you must tell Emacs to read the file into a buffer. This is called
 @dfn{visiting} the file. You can now edit the buffer and to save the
 changes you must write the buffer back to the file.
 In addition to visiting and saving files, Emacs can delete, copy, rename,
 and append to files, and operate on file directories.
 @comment  node-name,  next,  previous,  up
 a directory. You can see what the default directory of the current
 buffer is by using the @b{Describe Variable} option from the @b{Help}
 menu. When Emacs prompts you for the variable name to describe, type
 @var{default-directory}. If you wish to open a file in some other
 directory, use @key{DEL} or the @key{BackSpace} key to go back and type
 the path name of the new directory.
 You can create a new directory by typing @kbd{M-x
 make-directory}. This command will prompt you for a directory name:
 @example
 new directory, then simply press @kbd{C-g} to quit the
 command. Similarly, you can also remove a directory by using the command
 @kbd{remove-directory}. The command @kbd{M-x pwd} will print the current
 buffer's default directory. For more information on file names,
 @xref{File Names,,,xemacs,XEmacs User's Manual}.
 @node Visiting, Saving Files, File Names, Files
 @section Visiting Files
 @cindex visiting files
 Type in a filename and press @key{RET}. You will see a new buffer on the
 screen with its name in the mode-line. If the filename you specify
 already exists in Emacs, the buffer containing that file will be
 selected. You will get an error message if the filename does not
 exist. If you still press @key{RET}, a new buffer with the given
 filename will be displayed on the screen.
 @item C-x C-v
 @kindex C-x C-v
 @findex find-alternate-file
 This command (@code{find-alternate-file}), will visit a different file
 instead of the one visited last. It is similar to @kbd{C-c C-f} except
 that it kills the current buffer (after offering to save it).
 @item C-x 5 C-f
 @kindex C-x 5 C-f
 @findex find-file-other-frame
 This command will visit a file in another frame
 (@code{find-file-other-frame}) without changing the current window or
 frame. The @b{Open in New Frame...} from the @b{File} menu will do the
 same thing. It will prompt you for a file name in the echo area. After
 you type the file name and press @key{RET}, the specified file will be
 read into a new buffer and displayed on a new frame.
 @end table
 @node Saving Files,  , Visiting, Files
 @section Saving Files
 @cindex saving files
 @end example
 @noindent
 Try using this command twice. You will get the above message the first
 time you use this command, the second time you will get the following
 message:
 @example
 (No changes need to be saved)
 @end example
 @noindent
 This message indicates that you haven't made any changes since the last
 time you saved the file.
 @item C-x s
 @kindex C-x s
 @findex save-some-buffers
 This command will save all the buffers in their visited files
 Save file /usr/workspace/myfile.texinfo? (y or n)
 @end example
 @noindent
 You will get the above message for all the buffers. Type "y" if you want
 to save the buffer.
 @item C-x C-w
 @findex write file
 @kindex C-x C-w
 This command will prompt you for a file name and save the current buffer
 @end example
 @noindent
 After you type in a file name, press @key{RET}. The buffer will be saved
 in a new file. You can make copies of a particular file using this
 command.
 @end table
 You can also undo all the changes made since the file was visited or
 saved by reading the text from the file again (called
 @dfn{reverting}). For more information on this option,
 @xref{Reverting,,,xemacs,XEmacs User's Manual}.
 @vindex make-backup-files
 When you save a file in Emacs, it destroys its old contents. However,
-if you set the variable @var{make-backup-files} to non-@var{nil}
+if you set the variable @var{make-backup-files} to non-@code{nil}
 i.e. @samp{t}, Emacs will create a @dfn{backup} file. Select the
 @b{Describe variable} option from the @b{Help} menu and look at the
 documentation for this variable. Its default value should be
 @samp{t}. However, if its not then use @kbd{M-x set-variable} to set it
 to @samp{t} (@pxref{Setting Variables}). The backup file will contain
 the contents from the last time you visited the file. Emacs also
 provides options for creating numbered backups. For more information on
 backups, @xref{Backup,,,xemacs,XEmacs User's Manual}.
 @cindex auto saving
 Emacs also saves all the files from time to time so that in case of a
 system crash you don't lose lot of your work. You will see the message
 @samp{Auto-saving...} displayed in the echo area when the buffer is
 being saved automatically. The auto saved files are named by putting the
 character @samp{#} in front and back. For example a file called
 "myfile.texinfo" would be named as @file{#myfile.texinfo#}. For
 information on controlling auto-saving and recovering data from
 auto-saving, @xref{Auto Save Files,,,xemacs,XEmacs User's Manual}.
 @cindex simultaneous editing
 Emacs provides protection from simultaneous editing which occurs if
 two users are visiting the same file and trying to save their
 changes. It will put a lock on a file which is being visited and
 modified. If any other user tries to modify that file, it will inform
 the user about the lock and provide some
 options. For more information on protection against simultaneous
 editing, @xref{Interlocking,,,xemacs,XEmacs User's Manual}.

Mercurial > hg > xemacs-beta

comparison man/new-users-guide/files.texi @ 444:576fb035e263 r21-2-37