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1 GNU tar NEWS - User visible changes.
2 Please send GNU tar bug reports to <bug-tar@gnu.org>
3 \f
4 version 1.15.91 - Sergey Poznyakoff, (CVS version)
5
6 * Incompatible changes
7
8 ** Globbing
9
10 Previous versions of GNU tar assumed shell-style globbing when
11 extracting from or listing an archive. For example:
12
13 tar xf foo.tar '*.c'
14
15 would extract all files whose names end in '.c'. This behavior
16 was not documented and was incompatible with traditional tar
17 implementations. Therefore, starting from this version, GNU tar
18 no longer uses globbing by default. For example, the above invocation
19 is now interpreted as a request to extract from the archive the file
20 named '*.c'.
21
22 To treat member names as globbing patterns, use --wildcards option.
23 So, if you wish tar to mimic the behavior of versions up to 1.15.90,
24 set 'TAR_OPTIONS=--wildcards'.
25
26 The exact way tar interprets member names is controlled by the
27 following command line options:
28
29 --wildcards use wildcards
30 --anchored patterns match file name start
31 --ignore-case ignore case
32 --wildcards-match-slash wildcards match `/'
33
34 Each of these options has a '--no-' counterpart that disables its
35 effect (e.g. --no-wildcards).
36
37 These options affect both the interpretation of member names from
38 command line and that of the exclusion patterns (given with --exclude
39 and --exclude-from options). The defaults are:
40
41 1. For member names: --no-wildcards --anchored
42 2. For exclusion patterns: --wildcards --no-anchored --wildcards-match-slash
43
44 The options can appear multiple times in the command line, thereby
45 changing the way command line arguments are interpreted. For example,
46 to use case-insensitive matching in exclude patterns and to revert to
47 case-sensitive matching for the rest of command line, one could write:
48
49 tar xf foo.tar --ignore-case --exclude-from=FILE --no-ignore-case file.name
50
51 ** Short option -l is now an alias of --check-links option, which complies
52 with UNIX98. This ends the transition period started with version 1.14.
53
54 * New features
55
56 ** New incremental snapshot file format keeps information about file names
57 as well as that about directories.
58
59
60 \f
61 version 1.15.90 - Sergey Poznyakoff, 2006-02-19
62
63 * New features
64
65 ** Any number of -T (--files-from) options may be used in the command line.
66 The file specified with -T may include any valid `tar' options,
67 including another -T option.
68 Compatibility note: older versions of tar would only recognize -C
69 as an option name within the file list file. Now any file whose name
70 starts with - is handled as an option. To insert file names starting with
71 dash, use the --add-file option.
72
73 ** List files containing null-separated file names are detected and processed
74 automatically. It is no longer necessary to give the --null option.
75
76 ** New option --no-unquote disables the unquoting of input file names.
77 This is useful for processing output from `find dir -print0'.
78 An orthogonal option --unquote is provided as well.
79
80 ** New option --test-label tests the archive volume label.
81 If an argument is specified, the label is compared against its value.
82 Tar exits with code 0 if the two strings match, and with code 2 if
83 they do not.
84
85 If no argument is given, the --verbose option is implied. In this case,
86 tar prints the label name if present and exits with code 0.
87
88 ** New option --show-stored-names. When creating an archive in verbose mode,
89 it lists member names as stored in the archive, i.e., with any eventual
90 prefixes removed. The option is useful, for example, while comparing
91 `tar cv' and `tar tv' outputs.
92
93 ** New option --to-command pipes the contents of archive members to the
94 specified command.
95
96 ** New option --atime-preserve=system, which uses the O_NOATIME feature
97 of recent Linux kernels to avoid some problems when preserving file
98 access times.
99
100 ** New option --delay-directory-restore delays restoring modification times
101 and permissions of extracted directories until the end of extraction.
102 This is necessary for restoring from archives with unusual member
103 ordering (in particular, those created with --no-recursion option).
104 This option is implied when restoring from incremental archives.
105
106 ** New option --restrict prohibits use of some potentially harmful tar
107 options. Currently it disables '!' escape in multi-volume name menu.
108
109 ** New options --quoting-style and --quote-chars control the way tar
110 quotes member names on output. The --quoting-style takes an argument
111 specifying the quoting style to use (literal, shell, shell-always,
112 c, escape, locale, clocale). The argument to --quote-chars is a string
113 specifying characters to quote, even if the selected quoting style
114 would not quote them otherwise. The option --no-quote-chars is
115 provided to disable quoting certain characters.
116
117 ** The end-of-volume script (introduced with --info-script option) can
118 get current archive name from the environment variable TAR_ARCHIVE and
119 the volume number from the variable TAR_VOLUME. It can alter the
120 archive name by writing new name to the file descriptor 3.
121
122 ** Better support for full-resolution time stamps. Tar cannot restore
123 time stamps to full nanosecond resolution, though, until the kernel
124 guys get their act together and give us a system call to set file time
125 stamps to nanosecond resolution.
126
127 ** The -v option now prints time stamps only to 1-minute resolution,
128 not full resolution, to avoid using up too many output columns.
129 Nanosecond resolution is now supported, but that would be too much.
130
131 * Bug fixes
132
133 ** Allow non-option arguments to be interspersed with options.
134 ** When extracting or listing archives in old GNU format, tar
135 used to read an extra block of data after a long name header
136 if length of the member name was divisible by block size (512).
137 Consequently, the file pointer was set off and the next member
138 was not processed correctly.
139 ** Previous version created invalid archives when files shrink
140 during reading.
141 ** Compare mode (tar d) hanged when trying to compare file contents.
142 ** Previous versions in certain cases failed to restore directory
143 modification times.
144 ** When creating an archive, do not attempt to store files whose
145 meta-data cannot be stored in the header due to format limitations
146 (for ustar and v7 formats).
147 ** The --version option now also outputs information about copyright,
148 license, and credits. This reverts to the behavior of tar 1.14 and
149 earlier, and conforms to the GNU coding standards. The --license (-L)
150 option introduced in tar 1.15 has been removed, since it's no longer
151 needed.
152
153 \f
154 version 1.15.1 - Sergey Poznyakoff, 2004-12-21
155
156 This version fixes a bug introduced in 1.15 which caused
157 tar to refuse to extract files from standard input.
158
159 \f
160 version 1.15 - Sergey Poznyakoff, 2004-12-20
161
162 * Compressed archives are recognised automatically, it is no longer
163 necessary to specify -Z, -z, or -j options to read them. Thus, you can
164 now run `tar tf archive.tar.gz'.
165
166 * When restoring incremental dumps, --one-file-system option
167 prevents directory hierarchies residing on different devices
168 from being purged.
169
170 With the previous versions of tar it was dangerous to create
171 incremental dumps with --one-file-system option, since they
172 would recursively remove mount points when restoring from the
173 back up. This change fixes the bug.
174
175 * Renamed --strip-path to --strip-components for consistency with
176 the GNU convention.
177
178 * Skipping archive members is sped up if the archive media supports
179 seeks.
180
181 * Restore script starts restoring only if it is given --all (-a) option,
182 or some patterns. This is to prevent accidental restores.
183
184 * `tar --verify' prints a warning if during archive creation some of
185 the file names had their prefixes stripped off.
186
187 * New option --exclude-caches instructs tar to exclude cache directories
188 automatically on archive creation. Cache directories are those
189 containing a standardized tag file, as specified at:
190
191 http://www.brynosaurus.com/cachedir/spec.html
192
193 * New configure option --with-rmt allows to specify full path name to
194 the `rmt' utility. This supersedes DEFAULT_RMT_COMMAND variable
195 introduced in version 1.14
196
197 * New configure variable DEFAULT_RMT_DIR allows to specify the directory
198 where to install `rmt' utility. This is necessary since modifying
199 --libexecdir as was suggested for version 1.14 produced a side effect: it
200 also modified installation prefix for backup scripts (if
201 --enable-backup-scripts was given).
202
203 * Bug fixes:
204 ** Fixed flow in recognizing files to be included in incremental dumps.
205 ** Correctly recognize sparse archive members when used with -T option.
206 ** GNU multivolume headers cannot store filenames longer than 100 characters.
207 Do not allow multivolume archives to begin with such filenames.
208 ** If a member with link count > 2 was stored in the archive twice,
209 previous versions of tar were not able to extract it, since they
210 were trying to link the file to itself, which always failed and
211 lead to removing the already extracted copy. Preserve the first
212 extracted copy in such cases.
213 ** Restore script was passing improper argument to tar --listed option (which
214 didn't affect the functionality, but was logically incorrect).
215 ** Fixed verification of created archives.
216 ** Fixed unquoting of file names containing backslash escapes (previous
217 versions failed to recognize \a and \v).
218 ** When attempting to delete a non-existing member from the archive, previous
219 versions of tar used to overwrite last archive block with zeroes.
220
221 \f
222 version 1.14 - Sergey Poznyakoff, 2004-05-11
223
224 * Added support for POSIX.1-2001 and ustar archive formats.
225 * New option --format allows to select the output archive format
226 * The default output format can be selected at configuration time
227 by presetting the environment variable DEFAULT_ARCHIVE_FORMAT.
228 Allowed values are GNU, V7, OLDGNU and POSIX.
229 * New option --strip-path allows to cut off a given number of
230 path elements from the name of the file being extracted.
231
232 * New options --index-file, --no-overwrite-dir. The --overwrite-dir
233 option is now the default; use --no-overwrite-dir if you prefer
234 the previous default behavior.
235
236 * The semantics of -o option is changed. When extracting, it
237 does the same as --no-same-owner GNU tar option. This is compatible
238 with UNIX98 tar. Otherwise, its effect is the same as that of
239 --old-archive option. This latter is deprecated and will be removed
240 in future.
241
242 * New option --check-links prints a message if not all links are dumped
243 for a file being archived. This corresponds to the UNIX98 -l option.
244 The current semantics of the -l option is retained for compatibility
245 with previous releases, however such usage is strongly deprecated as
246 the option will change to its UNIX98 semantics in the future releases.
247
248 * New option --occurrence[=N] can be used in conjunction with one of
249 the subcommands --delete, --diff, --extract or --list when a list of
250 files is given either on the command line or via -T option. This
251 option instructs tar to process only the Nth occurrence of each named
252 file. N defaults to 1, so `tar -x -f archive --occurrence filename'
253 extracts the first occurrence of `filename' from `archive'
254 and terminates without scanning to the end of the archive.
255
256 * New option --pax-option allows to control the handling of POSIX
257 keywords in `pax' extended headers. It is equivalent to `pax'
258 -o option.
259
260 * --incremental and --listed-incremental options work correctly on
261 individual files, as well as on directories.
262
263 * New scripts: backup (replaces old level-0 and level-1) and restore.
264 The scripts are compiled and installed if --enable-backup-scripts
265 option is given to configure.
266
267 * By default tar searches "rmt" utility in "$prefix/libexec/rmt",
268 which is consistent with the location where the version of "rmt"
269 included in the package is installed. Previous versions of tar
270 used "/etc/rmt". To install "rmt" to its traditional location,
271 run configure with option --libexecdir=/etc. Otherwise, if you
272 already have rmt installed and wish to use it, instead of the
273 shipped in version, set the variable DEFAULT_RMT_COMMAND to
274 the full path name of the utility, e.g., ./configure
275 DEFAULT_RMT_COMMAND=/etc/rmt.
276
277 Notice also that the full path name of the "rmt" utility to
278 use can be set at runtime, by giving option --rmt-command to
279 tar.
280
281 * Removed obsolete command line options:
282 ** --absolute-paths superseded by --absolute-names
283 ** --block-compress is not needed any longer
284 ** --block-size superseded by --blocking-factor
285 ** --modification-time superseded by --touch
286 ** --read-full-blocks superseded by --read-full-records
287 ** --record-number superseded by --block-number
288 ** --version-control superseded by --backup
289
290 * New message translations fi (Finnish), gl (Galician), hr (Croatian),
291 hu (Hungarian), ms (Malaysian), nb (Norwegian), ro (Romanian), sk
292 (Slovak), zh_CN (Chinese simplified), zh_TW (Chinese traditional).
293 The code 'no' for Norwegian (Bokmål) has been withdrawn; use 'nb' instead.
294
295 * Bug fixes.
296
297 \f
298 version 1.13.25 - Paul Eggert, 2001-09-26
299
300 * Bug fixes.
301
302 \f
303 version 1.13.24 - Paul Eggert, 2001-09-22
304
305 * New option --overwrite-dir.
306 * Fixes for buffer overrun, porting, and copyright notice problems.
307 * The message translations for Korean are available again.
308
309 \f
310 version 1.13.23 - Paul Eggert, 2001-09-13
311
312 * Bug, porting, and copyright notice fixes.
313
314 \f
315 version 1.13.22 - Paul Eggert, 2001-08-29
316
317 * Bug fixes.
318
319 \f
320 version 1.13.21 - Paul Eggert, 2001-08-28
321
322 * Porting and copyright notice fixes.
323
324 \f
325 version 1.13.20 - Paul Eggert, 2001-08-27
326
327 * Some bugs were fixed:
328 - security problems
329 - hard links to symbolic links
330
331 * New option --recursion (the default) that is the inverse of --no-recursion.
332
333 * New options --anchored, --ignore-case, --wildcards,
334 --wildcards-match-slash, and their negations (e.g., --no-anchored).
335 Along with --recursion and --no-recursion, these options control how
336 exclude patterns are interpreted.
337
338 * The default interpretation of exclude patterns is now --no-anchored
339 --no-ignore-case --recursion --wildcards --wildcards-match-slash.
340 This is a quiet change to the semantics of --exclude. The previous
341 semantics were a failed attempt at backward compatibility but it
342 became clear that the semantics were puzzling and did not satisfy
343 everybody. Rather than continue to try to revive that dead horse we
344 thought it better to substitute cleaner semantics, with options so
345 that you can change the behavior more to your liking.
346
347 * New message translations for Indonesian and Turkish.
348 The translation for Korean has been withdrawn due to encoding errors.
349 It will be reissued once those are fixed.
350
351 \f
352 version 1.13.19 - Paul Eggert, 2001-01-13
353
354 * The -I option has been withdrawn, as it was buggy and confusing.
355 Eventually it is planned to be reintroduced, with the same meaning as -T.
356
357 * With an option like -N DATE, if DATE starts with "/" or ".", it is taken
358 to be a file name; the last-modified time of that file is used as the date.
359
360 \f
361 version 1.13.18 - Paul Eggert, 2000-10-29
362
363 * Some security problems have been fixed. `tar -x' now modifies only
364 files under the working directory, unless you also specify an unsafe
365 option like --absolute-names or --overwrite.
366
367 * The short name of the --bzip option has been changed to -j,
368 and -I is now an alias for -T, for compatibility with Solaris tar.
369
370 * The manual is now distributed under the GNU Free Documentation License.
371
372 * The new environment variable TAR_OPTIONS holds default command-line options.
373
374 * The --no-recursion option now affects extraction too.
375
376 * The wording in some diagnostics has been changed slightly.
377
378 * Snapshot files now record whether each file was accessed via NFS.
379 The new file format is upward- and downward-compatible with the old.
380
381 * New language supported: da.
382
383 * Compilation by traditional (K&R) C compilers is no longer supported.
384 If you still use such a compiler, please use GCC instead.
385
386 * This version of tar works best with GNU gzip test version 1.3 or later.
387 Please see <ftp://alpha.gnu.org/gnu/gzip/>.
388
389 * `tar --delete -f -' now works again.
390
391 \f
392 version 1.13.17 - Paul Eggert, 2000-01-07.
393
394 * `tar --delete -f -' is no longer allowed; it was too buggy.
395 * Diagnostic messages have been made more regular and consistent.
396
397 \f
398 version 1.13.16 - Paul Eggert, 1999-12-13.
399
400 * By default, tar now refuses to overwrite an existing file when
401 extracting files from an archive; instead, it removes the file
402 before extracting it. If the existing file is a symbolic link, the
403 link is removed and not the pointed-to file. There is one
404 exception: existing nonempty directories are not removed, nor are
405 their ownerships or permissions extracted. This fixes some
406 longstanding security problems.
407
408 The new --overwrite option enables the old default behavior.
409
410 For regular files, tar implements this change by using the O_EXCL
411 option of `open' to ensure that it creates the file; if this fails, it
412 removes the file and tries again. This is similar to the behavior of
413 the --unlink-first option, but it is faster in the common case of
414 extracting a new directory.
415
416 * By default, tar now ignores file names containing a component of `..'
417 when extracting, and warns about such file names when creating an archive.
418 To enable the old behavior, use the -P or --absolute-names option.
419
420 * Tar now handles file names with multibyte encodings (e.g., UTF-8, Shift-JIS)
421 correctly. It relies on the mbrtowc function to handle multibyte characters.
422
423 * The file generated by -g or --listed-incremental now uses a format
424 that is independent of locale, so that users need not worry about
425 locale when restoring a backup. This is needed for proper support
426 of multibyte characters. Old-format files can still be read, and
427 older versions of GNU tar can read new-format files, unless member
428 names have multibyte chars.
429
430 * Many diagnostics have been changed slightly, so that file names are
431 now output unambiguously. File names in diagnostics now are either
432 `quoted like this' (in the default C locale) or are followed by
433 colon, newline, or space, depending on context. Unprintable
434 characters are escaped with a C-like backslash conventions.
435 Terminating characters (e.g., close-quote, colon, newline)
436 are also escaped as needed.
437
438 * tar now ignores socket files when creating an archive.
439 Previously tar archived sockets as fifos, which caused problems.
440
441 \f
442 version 1.13.15 - Paul Eggert, 1999-12-03.
443
444 * If a file's ctime changes when being archived, report an error.
445 Previously tar looked at mtime, which missed some errors.
446
447 \f
448 version 1.13.14 - Paul Eggert, 1999-11-07.
449
450 * New translations ja, pt_BR.
451 * New options --help and --version for rmt.
452 * Ignore Solaris door files when creating an archive.
453
454 \f
455 version 1.13.13 - Paul Eggert, 1999-10-11.
456
457 * Invalid headers in tar files now elicit errors, not just warnings.
458 * `tar --version' output conforms to the latest GNU coding standards.
459 * If you specify an invalid date, `tar' now substitutes (time_t) -1.
460 * `configure --with-dmalloc' is no longer available.
461
462 \f
463 version 1.13.12 - Paul Eggert, 1999-09-24.
464
465 * `tar' now supports hard links to symbolic links.
466
467 * New options --no-same-owner, --no-same-permissions.
468
469 * --total now also outputs a human-readable size, and a throughput value.
470
471 * `tar' now uses two's-complement base-256 when outputting header
472 values that are out of the range of the standard unsigned base-8
473 format. This affects archive members with negative or huge time
474 stamps or uids, and archive members 8 GB or larger. The new tar
475 archives cannot be read by traditional tar, or by older versions of
476 GNU tar. Use the --old-archive option to revert to the old
477 behavior, which uses unportable representations for negative values,
478 and which rejects large files.
479
480 * On 32-bit hosts, `tar' now assumes that an incoming time stamp T in
481 the range 2**31 <= T < 2**32 represents the negative time (T -
482 2**32). This behavior is nonstandard and is not portable to 64-bit
483 time_t hosts, so `tar' issues a warning.
484
485 * `tar' no longer gives up extracting immediately upon discovering
486 that an archive contains garbage at the end. It attempts to extract
487 as many files as possible from the good data before the garbage.
488
489 * A read error now causes a nonzero exit status, not just a warning.
490
491 * Some diagnostics have been reworded for consistency.
492
493 \f
494 version 1.13.11 - Paul Eggert, 1999-08-23.
495
496 * The short name of the --bzip option has been changed to -I,
497 for compatibility with paxutils.
498
499 * -T /dev/null now matches nothing; previously, it matched anything
500 if no explicit operands were given.
501
502 * The `--' option now works the same as with other GNU utilities;
503 it causes later operands to be interpreted as file names, not options,
504 even if they begin with `-'.
505
506 * For the --newer and --after-date options, the table of time zone
507 abbreviations like `EST' has been updated to match current practice.
508 Also, local time abbreviations are now recognized, even if they are
509 not in tar's hardwired table. Remember, though, that you should use
510 numeric UTC offsets like `-0500' instead of abbreviations like
511 `EST', as abbreviations are not standardized and are ambiguous.
512
513 \f
514 version 1.13.10 - Paul Eggert, 1999-08-20.
515
516 * `tar' now uses signed base-64 when outputting header values that are
517 out of the range of the standard unsigned base-8 format. [This
518 change was superseded in 1.13.12, described above.]
519
520 \f
521 version 1.13.9 - Paul Eggert, 1999-08-18.
522
523 * `tar' now writes two zero blocks at end-of-archive instead of just one.
524 POSIX.1 requires this, and some other `tar' implementations check for it.
525
526 * `tar' no longer silently accepts a block containing nonzero checksum bytes
527 as a zero block.
528
529 * `tar' now reads buggy tar files that have a null byte at the start of a
530 numeric header field.
531
532 \f
533 version 1.13.8 - Paul Eggert, 1999-08-16.
534
535 * For compatibility with traditional `tar', intermediate directories
536 created automatically by root are no longer given the uid and gid of
537 the original file or directory.
538
539 \f
540 version 1.13.7 - Paul Eggert, 1999-08-14.
541
542 * --listed-incremental and --newer are now incompatible options.
543
544 * When creating an archive, leading `./' is no longer stripped,
545 to match traditional tar's behavior (and simplify the documentation).
546
547 * --diff without --absolute-names no longer falls back on absolute names.
548
549 \f
550 version 1.13.6 - Paul Eggert, 1999-08-11.
551
552 * An --exclude pattern containing / now excludes a file only if it matches an
553 initial prefix of the file name; a pattern without / continues to
554 exclude a file if it matches any file name component.
555
556 * The protocol for talking to rmt has been extended slightly.
557 Open flags are now communicated in symbolic format as well as numeric.
558 The symbolic format (e.g., "O_WRONLY|O_CREAT|O_TRUNC") is for portability
559 when rmt is operating on a different operating system from tar.
560 The numeric format is retained, and rmt uses it if symbolic format is absent,
561 for backward compatibility with older versions of tar and rmt.
562
563 * When writing GNU tar format headers, tar now uses signed base-64
564 for values that cannot be represented in unsigned octal.
565 This supports larger files (2**66 - 1 bytes instead of 2**33 - 1 bytes),
566 larger uids, negative time stamps, etc.
567
568 * When extracting files with unknown ownership, tar now looks up the
569 uid and gid "nobody" on hosts whose headers do not define UID_NOBODY
570 and GID_NOBODY, and falls back on uid/gid -2 if there is no "nobody".
571
572 * tar -t --numeric-owner now prints numeric uids and gids, not symbolic.
573
574 * New option -y or --bzip2 for bzip2 compression, by popular request.
575
576 \f
577 version 1.13.5 - Paul Eggert, 1999-07-20.
578
579 * Do the delayed updates of file metadata even after a fatal error.
580
581 \f
582 version 1.13.4 - Paul Eggert, 1999-07-20.
583
584 * Do not chmod unless we are root or the -p option was given;
585 this matches historical practice.
586
587 \f
588 version 1.13.3 - Paul Eggert, 1999-07-16.
589
590 * A path name is excluded if any of its file name components matches an
591 excluded pattern, even if the path name was specified on the command line.
592 Also see 1.13.6 for later changes in this area.
593
594 \f
595 version 1.13.2 - Paul Eggert, 1999-07-14.
596
597 * Bug reporting address changed to <bug-tar@gnu.org>.
598
599 \f
600 version 1.13.1 - Paul Eggert, 1999-07-12.
601
602 * Bug fixes only.
603 \f
604 version 1.13 - Paul Eggert, 1999-07-08.
605
606 * Support for large files, e.g., files larger than 2 GB on many 32-bit hosts.
607 Also, support for larger uids, device ids, etc.
608 * Many bug fixes and porting fixes.
609 * This release is only for fixes. A more ambitious test release,
610 with new features, is available as part of the paxutils. Please see:
611 ftp://alpha.gnu.org/gnu/paxutils/
612 The fixes in this release are intended to be merged with paxutils
613 at some point, but they haven't been merged yet.
614 * An interim GNU tar alpha had new --bzip2 and --ending-file options,
615 but they have been removed to maintain compatibility with paxutils.
616 Please try --use=bzip2 instead of --bzip2.
617 \f
618 Version 1.12 - François Pinard, 1997-04.
619
620 Sensitive matters
621 * Use shell globbing patterns for --label, instead of regular expressions.
622 * Do not quote anymore internally over the quoting done by the shell.
623
624 Output for humans
625 * Offer internationalization capabilities of most recent GNU gettext.
626 * Messages available in many more languages, thanks to all translators!
627 * Usage of ISO 8601 dates in listings, instead of local American dates.
628 * More normalization and cleanup in error messages.
629
630 Creation
631 * For helping using tar with find, offer a --no-recursion option.
632 * Implement --numeric-owner for ignoring symbolic names at create time.
633 * New --owner, --group --mode options, still preliminary.
634 * Recognize creating an archive on /dev/null, so Amanda works faster.
635 * Object to the creation of an empty archive (like in `tar cf FILE').
636 * Barely start implementing --posix and POSIXLY_CORRECT.
637
638 Extraction
639 * Make a better job at restoring file and directory attributes.
640 * Automatically attempt deleting existing files when in the way.
641 * Option --unlink-first (-U) removes most files prior to extraction.
642 * Option --recursive-unlink removes non-empty directories when in the way.
643 * Option --numeric-owner ignores owner/group names, it uses UID/GID instead.
644 * Use global umask when creating missing intermediate directories.
645 * When symlinks are not available, extract symbolic links as hard links.
646 * Diagnose extraction of contiguous files as regular files.
647 * New --backup, --suffix and --version-control options.
648
649 Various changes
650 * Better support of huge archives with --tape-length and --totals.
651 * Rename option --read-full-blocks (-B) to --read-full-records (-B).
652 * Rename option --block-size (-b) to --blocking-factor (-b).
653 * Rename option --record-number (-R) to --block-number (-R).
654 * With --block-number (-R), report null blocks and end of file.
655 * Implement --record-size for introducing a size in bytes.
656 * Delete --block-compress option and rather decide it automatically.
657 * Rename option --modification-time to --touch.
658
659 Many bugs are squashed, while others still run free.
660 \f
661 Version 1.11.8 - François Pinard, 1995-06.
662
663 * Messages available in French, German, Portuguese and Swedish.
664 * The distribution provides a rudimentary Texinfo manual.
665 * The device defaults to stdin/stdout, unless overridden by the installer.
666 * Option --sparse (-S) should work on more systems.
667 * Option --rsh-command may select an alternative remote shell program.
668
669 Most changes are internal, and should yield better portability.
670 \f
671 Version 1.11.2 - Michael Bushnell, 1993-03.
672
673 * Changes in backup scripts: cleaned up considerably; notices error
674 conditions better over rsh; DUMP_REMIND_SCRIPT is now an option in
675 backup-specs; new file dump-remind is an example of a
676 DUMP_REMIND_SCRIPT.
677
678 * Superfluous "Reading dirname" was a bug; fixed.
679
680 * Incompatibility problems with a bug on Solaris are fixed.
681
682 * New option --gzip (aliases are --ungzip and -z); calls gzip instead
683 of compress. Also, --use-compress-program lets you specify any
684 compress program. --compress-block is renamed --block-compress and
685 now requires one of the three compression options to be specified.
686
687 * Several error messages are cleaned up.
688
689 * Directory owners are now set properly when running as root.
690
691 * Provide DUMP_REMIND_SCRIPT in backup-specs as a possible option
692 for --info-script.
693
694 * Behave better with broken rmt servers.
695
696 * Dump scripts no longer use --atime-preserve; this causes a nasty probem.
697
698 * Several Makefile cleanups.
699 \f
700 Version 1.11.1 - Michael Bushnell, 1992-09.
701
702 * Many bug fixes.
703 \f
704 Version 1.11 - Michael Bushnell, 1992-09.
705 Version 1.10.16 - 1992-07.
706 Version 1.10.15 - 1992-06.
707 Version 1.10.14 - 1992-05.
708 Version 1.10.13 - 1992-01.
709
710 * Many bug fixes.
711
712 * Now uses GNU standard configure, generated by Autoconf.
713
714 * Long options now use `--'; use of `+' is deprecated and support
715 for it will eventually be removed.
716
717 * New option --null causes filenames read by -T to be
718 null-terminated, and causes -C to be ignored.
719
720 * New option --remove-files deletes files (but not directories)
721 after they are added to the archive.
722
723 * New option --ignore-failed-read prevents read-errors from affecting
724 the exit status.
725
726 * New option --checkpoint prints occasional messages as the tape
727 is being read or written.
728
729 * New option --show-omitted-dirs prints the names of directories
730 omitted from the archive.
731
732 * Some tape drives which use a non-standard method of indicating
733 end-of-tape now work correctly with multi-tape archives.
734
735 * --volno-file: Read the volume number used in prompting the user
736 (but not in recording volume ID's on the archive) from a file.
737
738 * When using --multi-volume, you can now give multiple -f arguments;
739 the various tape drives will get used in sequence and then wrap
740 around to the beginning.
741
742 * Remote archive names no longer have to be in /dev: any file with a
743 `:' is interpreted as remote. If new option --force-local is given,
744 then even archive files with a `:' are considered local.
745
746 * New option --atime-preserve restores (if possible) atimes to
747 their original values after dumping the file.
748
749 * No longer does tar confusingly dump "." when you don't tell it
750 what to dump.
751
752 * When extracting directories, tar now correctly restores their
753 modification and access times.
754
755 * Longnames support is redone differently--long name info directly
756 precedes the long-named file or link in the archive, so you no
757 longer have to wait for the extract to hit the end of the tape for
758 long names to work.
759 \f
760 Version 1.10 - Michael Bushnell, 1991-07.
761
762 * Filename to -G is optional. -C works right. Names +newer and
763 +newer-mtime work right.
764
765 * -g is now +incremental, -G is now +listed-incremental.
766
767 * Sparse files now work correctly.
768
769 * +volume is now called +label.
770
771 * +exclude now takes a filename argument, and +exclude-from does
772 what +exclude used to do.
773
774 * Exit status is now correct.
775
776 * +totals keeps track of total I/O and prints it when tar exits.
777
778 * When using +label with +extract, the label is now a regexp.
779
780 * New option +tape-length (-L) does multi-volume handling like BSD
781 dump: you tell tar how big the tape is and it will prompt at that
782 point instead of waiting for a write error.
783
784 * New backup scripts level-0 and level-1 which might be useful
785 to people. They use a file "backup-specs" for information, and
786 shouldn't need local modification. These are what we use to do
787 all our backups at the FSF.
788 \f
789 Version 1.09 - Jay Fenlason, 1990-10.
790 Version 1.08 - Jay Fenlason, 1990-01.
791 Versions 1.07 back to 1.00 by Jay Fenlason.
792
793 * See ChangeLog for more details.
794
795 \f
796
797 Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003,
798 2004, 2005, 2006 Free Software Foundation, Inc.
799
800 This file is part of GNU tar.
801
802 GNU tar is free software; you can redistribute it and/or modify
803 it under the terms of the GNU General Public License as published by
804 the Free Software Foundation; either version 2, or (at your option)
805 any later version.
806
807 GNU tar is distributed in the hope that it will be useful,
808 but WITHOUT ANY WARRANTY; without even the implied warranty of
809 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
810 GNU General Public License for more details.
811
812 You should have received a copy of the GNU General Public License
813 along with tar; see the file COPYING. If not, write to
814 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
815 Boston, MA 02110-1301, USA.
816 \f
817 Local variables:
818 mode: outline
819 paragraph-separate: "[ \f]*$"
820 end:
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