This is tar.info, produced by makeinfo version 4.13 from tar.texi.
-This manual is for GNU `tar' (version 1.25, 5 November 2010), which
+This manual is for GNU `tar' (version 1.26, 12 March 2011), which
creates and extracts files from archives.
Copyright (C) 1992, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2003,
Makefiles. This practice will change in the future, in the
meantime, however this means that projects containing file names
more than 99 characters long will not be able to use GNU `tar'
- 1.25 and Automake prior to 1.9.
+ 1.26 and Automake prior to 1.9.
ustar
Archive format defined by POSIX.1-1988 specification. It stores
Some compression programs are able to handle different compression
formats. GNU `tar' uses this, if the principal decompressor for the
given format is not available. For example, if `compress' is not
-installed, `tar' will try to use `gzip'. As of version 1.25 the
+installed, `tar' will try to use `gzip'. As of version 1.26 the
following alternatives are tried(2):
Format Main decompressor Alternatives
the actual file contents is stored in file only once. For example,
consider the following two files:
- $ ls
- -rw-r--r-- 2 gray staff 4 2007-10-30 15:11 one
- -rw-r--r-- 2 gray staff 4 2007-10-30 15:11 jeden
+ $ ls -l
+ -rw-r--r-- 2 gray staff 4 2007-10-30 15:11 one
+ -rw-r--r-- 2 gray staff 4 2007-10-30 15:11 jeden
Here, `jeden' is a link to `one'. When archiving this directory
with a verbose level 2, you will get an output similar to the following:
marked as in the example below:
$ tar --verbose --list --file=iamanarchive
- V--------- 0 0 0 1992-03-07 12:01 iamalabel--Volume Header--
- -rw-r--r-- ringo user 40 1990-05-21 13:30 iamafilename
+ V--------- 0/0 0 1992-03-07 12:01 iamalabel--Volume Header--
+ -rw-r--r-- ringo/user 40 1990-05-21 13:30 iamafilename
However, `--list' option will cause listing entire contents of the
archive, which may be undesirable (for example, if the archive is
******************
This appendix lists some important user-visible changes between version
-GNU `tar' 1.25 and previous versions. An up-to-date version of this
+GNU `tar' 1.26 and previous versions. An up-to-date version of this
document is available at the GNU `tar' documentation page
(http://www.gnu.org/software/tar/manual/changes.html).
file system at the time of the dump and is used to determine which
files were modified since the last backup.
- GNU `tar' version 1.25 supports three snapshot file formats. The
+ GNU `tar' version 1.26 supports three snapshot file formats. The
first format, called "format 0", is the one used by GNU `tar' versions
up to 1.15.1. The second format, called "format 1" is an extended
version of this format, that contains more metadata and allows for
further extensions. It was used by version 1.15.1. Starting from
-version 1.16 and up to 1.25, the "format 2" is used.
+version 1.16 and up to 1.26, the "format 2" is used.
GNU `tar' is able to read all three formats, but will create
snapshots only in format 2.
2. `Format 2' snapshot file begins with a format identifier, as
described for version 1, e.g.:
- GNU tar-1.25-2
+ GNU tar-1.26-2
This line is followed by newline. Rest of file consists of
records, separated by null (ASCII 0) characters. Thus, in contrast