directory.
@opsummary{one-top-level}
-@item --one-top-level
+@item --one-top-level[=@var{dir}]
Tells @command{tar} to create a new directory beneath the extraction directory
-(or the one passed to @option{-C}) and use it to guard against tarbombs. The
-name of the new directory will be equal to the name of the archive with the
-extension stripped off. If any archive names (after transformations from
-@option{--transform} and @option{--strip-components}) do not already begin with
-it, the new directory will be prepended to the names immediately before
-extraction. Recognized extensions are @samp{.tar}, @samp{.taz}, @samp{.tbz},
-@samp{.tb2}, @samp{.tgz}, @samp{.tlz} and @samp{.txz}.
+(or the one passed to @option{-C}) and use it to guard against
+tarbombs. In the absence of @var{dir} argument, the name of the new directory
+will be equal to the base name of the archive (file name minus the
+archive suffix, if recognized). Any member names that do not begin
+with that directory name (after
+transformations from @option{--transform} and
+@option{--strip-components}) will be prefixed with it. Recognized
+file name suffixes are @samp{.tar}, and any compression suffixes
+recognizable by @xref{--auto-compress}.
@opsummary{overwrite}
@item --overwrite
this option to produce warning messages about existing old files
(@pxref{warnings}).
+@opsummary{sort}
+@item --sort=@var{order}
+Specify the directory sorting order when reading directories.
+@var{Order} may be one of the following:
+
+@table @samp
+@item none
+No directory sorting is performed. This is the default.
+
+@item name
+Sort the directory entries on name. The operating system may deliver
+directory entries in a more or less random order, and sorting them
+makes archive creation reproducible.
+
+@item inode
+Sort the directory entries on inode number. Sorting directories on
+inode number may reduce the amount of disk seek operations when
+creating an archive for some file systems.
+
+@end table
+
@opsummary{sparse}
@item --sparse
@itemx -S
@smallexample
tar (GNU tar) @value{VERSION}
-Copyright (C) 2013 Free Software Foundation, Inc.
+Copyright (C) 2013-2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
@samp{@{@var{n}@}} part is omitted, the current screen width
is assumed.
-@item %@var{c}
+@item %c
This is a shortcut for @samp{%@{%Y-%m-%d %H:%M:%S@}t: %ds, %@{read,wrote@}T%*\r},
intended mainly for use with @samp{ttyout} action (see below).
@end table