@set xref-volno-file @xref{Using Multiple Tapes}
@set pxref-volno-file @pxref{Using Multiple Tapes}
+@set op-seek @kbd{--seek}
+@set ref-seek @ref{seek}
+@set xref-seek @xref{seek}
+@set pxref-seek @pxref{seek}
+
@c Put everything in one index (arbitrarily chosen to be the concept index).
@syncodeindex fn cp
@syncodeindex ky cp
(see --info-script)
+@item -n
+@itemx --seek
+
+Assume that the archive media supports seeks to arbitrary
+locations. Usually @command{tar} determines automatically whether
+the archive can be seeked or not. This option is intended for use
+in cases when such recognition fails.
+
@item --newer=@var{date}
@itemx --after-date=@var{date}
@itemx -N
To restore files that were archived using a scripted backup, use the
@code{restore} script. Its usage is quite straightforward. In the
-simplest form, invoke @command{restore} without options, it will
+simplest form, invoke @code{restore --all}, it will
then restore all the filesystems and files specified in
@file{backup-specs} (@pxref{General-Purpose Variables,BACKUP_DIRS}).
The full list of options accepted by @code{restore} follows:
@table @option
+@item -a
+@itemx --all
+Restore all filesystems and files specified in @file{backup-specs}
+
@item -l @var{level}
@itemx --level=@var{level}
Start restoring from the given backup level, instead of the default 0.
@table @option
@item --anchored
@itemx --no-anchored
-If anchored (the default), a pattern must match an initial subsequence
-of the name's components. Otherwise, the pattern can match any subsequence.
+If anchored, a pattern must match an initial subsequence
+of the name's components. Otherwise, the pattern can match any
+subsequence. Default is @option{--no-anchored}.
@item --ignore-case
@itemx --no-ignore-case
the original current working directory of @command{tar}, due to a previous
@samp{--directory} option.
-@FIXME{dan: does this mean that you *can* use the short option form, but
-you can *not* use the long option form with --files-from? or is this
-totally screwed?}
-
When using @samp{--files-from} (@pxref{files}), you can put @samp{-C}
-options in the file list. Unfortunately, you cannot put
-@samp{--directory} options in the file list. (This interpretation can
-be disabled by using the @value{op-null} option.)
+options in the file list. Notice, however, that in this case the
+option and its argument must occupy two consecutive lines. For
+instance, the file list for the above example will be:
+
+@smallexample
+@group
+-C
+/etc
+passwd
+hosts
+-C
+/lib
+libc.a
+@end group
+@end smallexample
+
+@noindent
+To use it, you would invoke @command{tar} as follows:
+
+@smallexample
+$ @kbd{tar -c -f foo.tar --files-from list}
+@end smallexample
+
+Notice also that you can only use the short option variant in the file
+list, i.e. always use @option{-C}, not @option{--directory}.
+
+The interpretation of @value{op-directory} is disabled by
+@value{op-null} option.
@node absolute
@subsection Absolute File Names
data on the tape will be overwritten (unless it is no longer needed).
Before reading an archive, you should make sure the tape head is at
the beginning of the archive you want to read. (The @code{restore}
-script will find the archive automatically. @FIXME{There is no such
-restore script!}@FIXME-xref{Scripted Restoration}@xref{mt}, for
+script will find the archive automatically. @FIXME-xref{Scripted Restoration}@xref{mt}, for
an explanation of the tape moving utility.
If you want to add new archive file entries to a tape, you should