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  1. GNU tar NEWS - User visible changes. 2007-08-24
  2. Please send GNU tar bug reports to <bug-tar@gnu.org>
  3. version 1.18.1 (CVS)
  4. * Fix --version output.
  5. * Recognition of broken archive.
  6. When supplied an archive smaller than 512 bytes in reading mode (-x,
  7. -t), the previous version of tar silently ignored it, exiting with
  8. code 0. It is fixed. Tar now issues the following diagnostic message:
  9. 'This does not look like a tar archive', and exits with code 2.
  10. * Fix double-dot recognition in archive member names in case of duplicate '/.'.
  11. version 1.18 - Sergey Poznyakoff, 2007-06-29
  12. * Licensed under the GPLv3
  13. * Fixed several bugs in the testsuite
  14. version 1.17 - Sergey Poznyakoff, 2007-06-08
  15. * Fix archivation of sparse files in posix mode. Previous versions padded
  16. sparse members with spurious zero blocks.
  17. * Fix operation of --verify --listed-incremental. Version 1.16.1 produced
  18. a full dump when both options were given.
  19. * Fix --occurrence. In previous versions it continued scanning the archive
  20. even though all requested members has already been extracted.
  21. * Scope of --transform and --strip-components options.
  22. In addition to affecting regular archive members, the --transform
  23. option affects hard and soft link targets and the --strip-components
  24. option affects hard link targets as well.
  25. * End-of-volume script can send the new volume name to tar by writing
  26. it to the file descriptor stored in the environment variable `TAR_FD'.
  27. version 1.16.1 - Sergey Poznyakoff, 2006-12-09
  28. * New option --exclude-tag allows to specify "exclusion tag files", i.e.
  29. files whose presence in a directory means that the directory should not
  30. be archived.
  31. * The --exclude-cache option excludes directories that contain the
  32. CACHEDIR.TAG file from being archived. Previous versions excluded
  33. directory contents only, while the directories themselves were
  34. still added to the archive.
  35. * Support for reading ustar type 'N' header logical records has been removed.
  36. This GNU extension was generated only by very old versions of GNU 'tar'.
  37. Unfortunately its implementation had security holes; see
  38. <http://archives.neohapsis.com/archives/fulldisclosure/2006-11/0344.html>.
  39. We don't expect that any tar archives in practical use have type 'N'
  40. records, but if you have one and you trust its contents, you can
  41. decode it with GNU tar 1.16 or earlier.
  42. * Race conditions have been fixed that in some cases briefly allowed
  43. files extracted by 'tar -x --same-owner' (or plain 'tar -x', when
  44. running as root) to be accessed by users that they shouldn't have been.
  45. version 1.16 - Sergey Poznyakoff, 2006-10-21
  46. * After creating an archive, tar exits with code 1 if some files were
  47. changed while being read. Previous versions exited with code 2 (fatal
  48. error), and only if some files were truncated while being archived.
  49. * New option --mtime allows to set modification times for all archive
  50. members during creation.
  51. * Bug fixes
  52. ** Avoid running off file descriptors when using multiple -C options.
  53. ** tar --index-file=FILE --file=- sent the archive to FILE, and
  54. the listing to stderr.
  55. version 1.15.91 - Sergey Poznyakoff, 2006-06-16
  56. * Incompatible changes
  57. ** Globbing
  58. Previous versions of GNU tar assumed shell-style globbing when
  59. extracting from or listing an archive. For example:
  60. tar xf foo.tar '*.c'
  61. would extract all files whose names end in '.c'. This behavior
  62. was not documented and was incompatible with traditional tar
  63. implementations. Therefore, starting from this version, GNU tar
  64. no longer uses globbing by default. For example, the above invocation
  65. is now interpreted as a request to extract from the archive the file
  66. named '*.c'.
  67. To treat member names as globbing patterns, use --wildcards option.
  68. If you wish tar to mimic the behavior of versions up to 1.15.90,
  69. add --wildcards to the value of the environment variable TAR_OPTIONS.
  70. The exact way in which tar interprets member names is controlled by the
  71. following command line options:
  72. --wildcards use wildcards
  73. --anchored patterns match file name start
  74. --ignore-case ignore case
  75. --wildcards-match-slash wildcards match `/'
  76. Each of these options has a '--no-' counterpart that disables its
  77. effect (e.g. --no-wildcards).
  78. These options affect both the interpretation of member names from
  79. command line and that of the exclusion patterns (given with --exclude
  80. and --exclude-from options). The defaults are:
  81. 1. For member names: --no-wildcards --anchored
  82. 2. For exclusion patterns: --wildcards --no-anchored --wildcards-match-slash
  83. The options can appear multiple times in the command line, thereby
  84. changing the way command line arguments are interpreted. For example,
  85. to use case-insensitive matching in exclude patterns and to revert to
  86. case-sensitive matching for the rest of command line, one could write:
  87. tar xf foo.tar --ignore-case --exclude-from=FILE --no-ignore-case file.name
  88. ** Short option -l is now an alias of --check-links option, which complies
  89. with UNIX98. This ends the transition period started with version 1.14.
  90. * New features
  91. ** New option --transform allows to transform file names before storing them
  92. in the archive or member names before extracting. The option takes a
  93. sed replace expression as its argument. For example,
  94. tar cf foo.tar --transform 's,^,prefix/,'
  95. will add 'prefix/' to all file names stored in foo.tar.
  96. ** --strip-components option works when deleting and comparing. In previous
  97. versions it worked only with --extract.
  98. ** New option --show-transformed-names enables display of transformed file
  99. or archive. It generalizes --show-stored-names option, introduced in
  100. 1.15.90. In particular, when creating an archive in verbose mode, it lists
  101. member names as stored in the archive, i.e., with any eventual prefixes
  102. removed and file name transformations applied. The option is useful,
  103. for example, while comparing `tar cv' and `tar tv' outputs.
  104. ** New incremental snapshot file format keeps information about file names
  105. as well as that about directories.
  106. ** The --checkpoint option takes an optional argument specifying the number
  107. of records between the two successive checkpoints. Optional dot
  108. starting the argument intructs tar to print dots instead of textual
  109. checkpoints.
  110. ** The --totals option can be used with any tar operation (previous versions
  111. understood it only with --create). If an argument to this option is
  112. given, it specifies the signal upon delivery of which the statistics
  113. is to be printed. Both forms of this option (with and without
  114. argument) can be given to in a single invocation of tar.
  115. * Bug fixes
  116. ** Detect attempts to update compressed archives.
  117. version 1.15.90 - Sergey Poznyakoff, 2006-02-19
  118. * New features
  119. ** Any number of -T (--files-from) options may be used in the command line.
  120. The file specified with -T may include any valid `tar' options,
  121. including another -T option.
  122. Compatibility note: older versions of tar would only recognize -C
  123. as an option name within the file list file. Now any file whose name
  124. starts with - is handled as an option. To insert file names starting with
  125. dash, use the --add-file option.
  126. ** List files containing null-separated file names are detected and processed
  127. automatically. It is no longer necessary to give the --null option.
  128. ** New option --no-unquote disables the unquoting of input file names.
  129. This is useful for processing output from `find dir -print0'.
  130. An orthogonal option --unquote is provided as well.
  131. ** New option --test-label tests the archive volume label.
  132. If an argument is specified, the label is compared against its value.
  133. Tar exits with code 0 if the two strings match, and with code 2 if
  134. they do not.
  135. If no argument is given, the --verbose option is implied. In this case,
  136. tar prints the label name if present and exits with code 0.
  137. ** New option --show-stored-names. When creating an archive in verbose mode,
  138. it lists member names as stored in the archive, i.e., with any eventual
  139. prefixes removed. The option is useful, for example, while comparing
  140. `tar cv' and `tar tv' outputs.
  141. ** New option --to-command pipes the contents of archive members to the
  142. specified command.
  143. ** New option --atime-preserve=system, which uses the O_NOATIME feature
  144. of recent Linux kernels to avoid some problems when preserving file
  145. access times.
  146. ** New option --delay-directory-restore delays restoring modification times
  147. and permissions of extracted directories until the end of extraction.
  148. This is necessary for restoring from archives with unusual member
  149. ordering (in particular, those created with --no-recursion option).
  150. This option is implied when restoring from incremental archives.
  151. ** New option --restrict prohibits use of some potentially harmful tar
  152. options. Currently it disables '!' escape in multi-volume name menu.
  153. ** New options --quoting-style and --quote-chars control the way tar
  154. quotes member names on output. The --quoting-style takes an argument
  155. specifying the quoting style to use (literal, shell, shell-always,
  156. c, escape, locale, clocale). The argument to --quote-chars is a string
  157. specifying characters to quote, even if the selected quoting style
  158. would not quote them otherwise. The option --no-quote-chars is
  159. provided to disable quoting certain characters.
  160. ** The end-of-volume script (introduced with --info-script option) can
  161. get current archive name from the environment variable TAR_ARCHIVE and
  162. the volume number from the variable TAR_VOLUME. It can alter the
  163. archive name by writing new name to the file descriptor 3.
  164. ** Better support for full-resolution time stamps. Tar cannot restore
  165. time stamps to full nanosecond resolution, though, until the kernel
  166. guys get their act together and give us a system call to set file time
  167. stamps to nanosecond resolution.
  168. ** The -v option now prints time stamps only to 1-minute resolution,
  169. not full resolution, to avoid using up too many output columns.
  170. Nanosecond resolution is now supported, but that would be too much.
  171. * Bug fixes
  172. ** Allow non-option arguments to be interspersed with options.
  173. ** When extracting or listing archives in old GNU format, tar
  174. used to read an extra block of data after a long name header
  175. if length of the member name was divisible by block size (512).
  176. Consequently, the file pointer was set off and the next member
  177. was not processed correctly.
  178. ** Previous version created invalid archives when files shrink
  179. during reading.
  180. ** Compare mode (tar d) hung when trying to compare file contents.
  181. ** Previous versions in certain cases failed to restore directory
  182. modification times.
  183. ** When creating an archive, do not attempt to store files whose
  184. meta-data cannot be stored in the header due to format limitations
  185. (for ustar and v7 formats).
  186. ** The --version option now also outputs information about copyright,
  187. license, and credits. This reverts to the behavior of tar 1.14 and
  188. earlier, and conforms to the GNU coding standards. The --license (-L)
  189. option introduced in tar 1.15 has been removed, since it's no longer
  190. needed.
  191. version 1.15.1 - Sergey Poznyakoff, 2004-12-21
  192. This version fixes a bug introduced in 1.15 which caused
  193. tar to refuse to extract files from standard input.
  194. version 1.15 - Sergey Poznyakoff, 2004-12-20
  195. * Compressed archives are recognised automatically, it is no longer
  196. necessary to specify -Z, -z, or -j options to read them. Thus, you can
  197. now run `tar tf archive.tar.gz'.
  198. * When restoring incremental dumps, --one-file-system option
  199. prevents directory hierarchies residing on different devices
  200. from being purged.
  201. With the previous versions of tar it was dangerous to create
  202. incremental dumps with --one-file-system option, since they
  203. would recursively remove mount points when restoring from the
  204. back up. This change fixes the bug.
  205. * Renamed --strip-path to --strip-components for consistency with
  206. the GNU convention.
  207. * Skipping archive members is sped up if the archive media supports
  208. seeks.
  209. * Restore script starts restoring only if it is given --all (-a) option,
  210. or some patterns. This is to prevent accidental restores.
  211. * `tar --verify' prints a warning if during archive creation some of
  212. the file names had their prefixes stripped off.
  213. * New option --exclude-caches instructs tar to exclude cache directories
  214. automatically on archive creation. Cache directories are those
  215. containing a standardized tag file, as specified at:
  216. http://www.brynosaurus.com/cachedir/spec.html
  217. * New configure option --with-rmt allows to specify full path name to
  218. the `rmt' utility. This supersedes DEFAULT_RMT_COMMAND variable
  219. introduced in version 1.14
  220. * New configure variable DEFAULT_RMT_DIR allows to specify the directory
  221. where to install `rmt' utility. This is necessary since modifying
  222. --libexecdir as was suggested for version 1.14 produced a side effect: it
  223. also modified installation prefix for backup scripts (if
  224. --enable-backup-scripts was given).
  225. * Bug fixes:
  226. ** Fixed flow in recognizing files to be included in incremental dumps.
  227. ** Correctly recognize sparse archive members when used with -T option.
  228. ** GNU multivolume headers cannot store filenames longer than 100 characters.
  229. Do not allow multivolume archives to begin with such filenames.
  230. ** If a member with link count > 2 was stored in the archive twice,
  231. previous versions of tar were not able to extract it, since they
  232. were trying to link the file to itself, which always failed and
  233. lead to removing the already extracted copy. Preserve the first
  234. extracted copy in such cases.
  235. ** Restore script was passing improper argument to tar --listed option (which
  236. didn't affect the functionality, but was logically incorrect).
  237. ** Fixed verification of created archives.
  238. ** Fixed unquoting of file names containing backslash escapes (previous
  239. versions failed to recognize \a and \v).
  240. ** When attempting to delete a non-existing member from the archive, previous
  241. versions of tar used to overwrite last archive block with zeroes.
  242. version 1.14 - Sergey Poznyakoff, 2004-05-11
  243. * Added support for POSIX.1-2001 and ustar archive formats.
  244. * New option --format allows to select the output archive format
  245. * The default output format can be selected at configuration time
  246. by presetting the environment variable DEFAULT_ARCHIVE_FORMAT.
  247. Allowed values are GNU, V7, OLDGNU and POSIX.
  248. * New option --strip-path allows to cut off a given number of
  249. path elements from the name of the file being extracted.
  250. * New options --index-file, --no-overwrite-dir. The --overwrite-dir
  251. option is now the default; use --no-overwrite-dir if you prefer
  252. the previous default behavior.
  253. * The semantics of -o option is changed. When extracting, it
  254. does the same as --no-same-owner GNU tar option. This is compatible
  255. with UNIX98 tar. Otherwise, its effect is the same as that of
  256. --old-archive option. This latter is deprecated and will be removed
  257. in future.
  258. * New option --check-links prints a message if not all links are dumped
  259. for a file being archived. This corresponds to the UNIX98 -l option.
  260. The current semantics of the -l option is retained for compatibility
  261. with previous releases, however such usage is strongly deprecated as
  262. the option will change to its UNIX98 semantics in the future releases.
  263. * New option --occurrence[=N] can be used in conjunction with one of
  264. the subcommands --delete, --diff, --extract or --list when a list of
  265. files is given either on the command line or via -T option. This
  266. option instructs tar to process only the Nth occurrence of each named
  267. file. N defaults to 1, so `tar -x -f archive --occurrence filename'
  268. extracts the first occurrence of `filename' from `archive'
  269. and terminates without scanning to the end of the archive.
  270. * New option --pax-option allows to control the handling of POSIX
  271. keywords in `pax' extended headers. It is equivalent to `pax'
  272. -o option.
  273. * --incremental and --listed-incremental options work correctly on
  274. individual files, as well as on directories.
  275. * New scripts: backup (replaces old level-0 and level-1) and restore.
  276. The scripts are compiled and installed if --enable-backup-scripts
  277. option is given to configure.
  278. * By default tar searches "rmt" utility in "$prefix/libexec/rmt",
  279. which is consistent with the location where the version of "rmt"
  280. included in the package is installed. Previous versions of tar
  281. used "/etc/rmt". To install "rmt" to its traditional location,
  282. run configure with option --libexecdir=/etc. Otherwise, if you
  283. already have rmt installed and wish to use it, instead of the
  284. shipped in version, set the variable DEFAULT_RMT_COMMAND to
  285. the full path name of the utility, e.g., ./configure
  286. DEFAULT_RMT_COMMAND=/etc/rmt.
  287. Notice also that the full path name of the "rmt" utility to
  288. use can be set at runtime, by giving option --rmt-command to
  289. tar.
  290. * Removed obsolete command line options:
  291. ** --absolute-paths superseded by --absolute-names
  292. ** --block-compress is not needed any longer
  293. ** --block-size superseded by --blocking-factor
  294. ** --modification-time superseded by --touch
  295. ** --read-full-blocks superseded by --read-full-records
  296. ** --record-number superseded by --block-number
  297. ** --version-control superseded by --backup
  298. * New message translations fi (Finnish), gl (Galician), hr (Croatian),
  299. hu (Hungarian), ms (Malaysian), nb (Norwegian), ro (Romanian), sk
  300. (Slovak), zh_CN (Chinese simplified), zh_TW (Chinese traditional).
  301. The code 'no' for Norwegian (Bokmål) has been withdrawn; use 'nb' instead.
  302. * Bug fixes.
  303. version 1.13.25 - Paul Eggert, 2001-09-26
  304. * Bug fixes.
  305. version 1.13.24 - Paul Eggert, 2001-09-22
  306. * New option --overwrite-dir.
  307. * Fixes for buffer overrun, porting, and copyright notice problems.
  308. * The message translations for Korean are available again.
  309. version 1.13.23 - Paul Eggert, 2001-09-13
  310. * Bug, porting, and copyright notice fixes.
  311. version 1.13.22 - Paul Eggert, 2001-08-29
  312. * Bug fixes.
  313. version 1.13.21 - Paul Eggert, 2001-08-28
  314. * Porting and copyright notice fixes.
  315. version 1.13.20 - Paul Eggert, 2001-08-27
  316. * Some bugs were fixed:
  317. - security problems
  318. - hard links to symbolic links
  319. * New option --recursion (the default) that is the inverse of --no-recursion.
  320. * New options --anchored, --ignore-case, --wildcards,
  321. --wildcards-match-slash, and their negations (e.g., --no-anchored).
  322. Along with --recursion and --no-recursion, these options control how
  323. exclude patterns are interpreted.
  324. * The default interpretation of exclude patterns is now --no-anchored
  325. --no-ignore-case --recursion --wildcards --wildcards-match-slash.
  326. This is a quiet change to the semantics of --exclude. The previous
  327. semantics were a failed attempt at backward compatibility but it
  328. became clear that the semantics were puzzling and did not satisfy
  329. everybody. Rather than continue to try to revive that dead horse we
  330. thought it better to substitute cleaner semantics, with options so
  331. that you can change the behavior more to your liking.
  332. * New message translations for Indonesian and Turkish.
  333. The translation for Korean has been withdrawn due to encoding errors.
  334. It will be reissued once those are fixed.
  335. version 1.13.19 - Paul Eggert, 2001-01-13
  336. * The -I option has been withdrawn, as it was buggy and confusing.
  337. Eventually it is planned to be reintroduced, with the same meaning as -T.
  338. * With an option like -N DATE, if DATE starts with "/" or ".", it is taken
  339. to be a file name; the last-modified time of that file is used as the date.
  340. version 1.13.18 - Paul Eggert, 2000-10-29
  341. * Some security problems have been fixed. `tar -x' now modifies only
  342. files under the working directory, unless you also specify an unsafe
  343. option like --absolute-names or --overwrite.
  344. * The short name of the --bzip option has been changed to -j,
  345. and -I is now an alias for -T, for compatibility with Solaris tar.
  346. * The manual is now distributed under the GNU Free Documentation License.
  347. * The new environment variable TAR_OPTIONS holds default command-line options.
  348. * The --no-recursion option now affects extraction too.
  349. * The wording in some diagnostics has been changed slightly.
  350. * Snapshot files now record whether each file was accessed via NFS.
  351. The new file format is upward- and downward-compatible with the old.
  352. * New language supported: da.
  353. * Compilation by traditional (K&R) C compilers is no longer supported.
  354. If you still use such a compiler, please use GCC instead.
  355. * This version of tar works best with GNU gzip test version 1.3 or later.
  356. Please see <ftp://alpha.gnu.org/gnu/gzip/>.
  357. * `tar --delete -f -' now works again.
  358. version 1.13.17 - Paul Eggert, 2000-01-07.
  359. * `tar --delete -f -' is no longer allowed; it was too buggy.
  360. * Diagnostic messages have been made more regular and consistent.
  361. version 1.13.16 - Paul Eggert, 1999-12-13.
  362. * By default, tar now refuses to overwrite an existing file when
  363. extracting files from an archive; instead, it removes the file
  364. before extracting it. If the existing file is a symbolic link, the
  365. link is removed and not the pointed-to file. There is one
  366. exception: existing nonempty directories are not removed, nor are
  367. their ownerships or permissions extracted. This fixes some
  368. longstanding security problems.
  369. The new --overwrite option enables the old default behavior.
  370. For regular files, tar implements this change by using the O_EXCL
  371. option of `open' to ensure that it creates the file; if this fails, it
  372. removes the file and tries again. This is similar to the behavior of
  373. the --unlink-first option, but it is faster in the common case of
  374. extracting a new directory.
  375. * By default, tar now ignores file names containing a component of `..'
  376. when extracting, and warns about such file names when creating an archive.
  377. To enable the old behavior, use the -P or --absolute-names option.
  378. * Tar now handles file names with multibyte encodings (e.g., UTF-8, Shift-JIS)
  379. correctly. It relies on the mbrtowc function to handle multibyte characters.
  380. * The file generated by -g or --listed-incremental now uses a format
  381. that is independent of locale, so that users need not worry about
  382. locale when restoring a backup. This is needed for proper support
  383. of multibyte characters. Old-format files can still be read, and
  384. older versions of GNU tar can read new-format files, unless member
  385. names have multibyte chars.
  386. * Many diagnostics have been changed slightly, so that file names are
  387. now output unambiguously. File names in diagnostics now are either
  388. `quoted like this' (in the default C locale) or are followed by
  389. colon, newline, or space, depending on context. Unprintable
  390. characters are escaped with a C-like backslash conventions.
  391. Terminating characters (e.g., close-quote, colon, newline)
  392. are also escaped as needed.
  393. * tar now ignores socket files when creating an archive.
  394. Previously tar archived sockets as fifos, which caused problems.
  395. version 1.13.15 - Paul Eggert, 1999-12-03.
  396. * If a file's ctime changes when being archived, report an error.
  397. Previously tar looked at mtime, which missed some errors.
  398. version 1.13.14 - Paul Eggert, 1999-11-07.
  399. * New translations ja, pt_BR.
  400. * New options --help and --version for rmt.
  401. * Ignore Solaris door files when creating an archive.
  402. version 1.13.13 - Paul Eggert, 1999-10-11.
  403. * Invalid headers in tar files now elicit errors, not just warnings.
  404. * `tar --version' output conforms to the latest GNU coding standards.
  405. * If you specify an invalid date, `tar' now substitutes (time_t) -1.
  406. * `configure --with-dmalloc' is no longer available.
  407. version 1.13.12 - Paul Eggert, 1999-09-24.
  408. * `tar' now supports hard links to symbolic links.
  409. * New options --no-same-owner, --no-same-permissions.
  410. * --total now also outputs a human-readable size, and a throughput value.
  411. * `tar' now uses two's-complement base-256 when outputting header
  412. values that are out of the range of the standard unsigned base-8
  413. format. This affects archive members with negative or huge time
  414. stamps or uids, and archive members 8 GB or larger. The new tar
  415. archives cannot be read by traditional tar, or by older versions of
  416. GNU tar. Use the --old-archive option to revert to the old
  417. behavior, which uses unportable representations for negative values,
  418. and which rejects large files.
  419. * On 32-bit hosts, `tar' now assumes that an incoming time stamp T in
  420. the range 2**31 <= T < 2**32 represents the negative time (T -
  421. 2**32). This behavior is nonstandard and is not portable to 64-bit
  422. time_t hosts, so `tar' issues a warning.
  423. * `tar' no longer gives up extracting immediately upon discovering
  424. that an archive contains garbage at the end. It attempts to extract
  425. as many files as possible from the good data before the garbage.
  426. * A read error now causes a nonzero exit status, not just a warning.
  427. * Some diagnostics have been reworded for consistency.
  428. version 1.13.11 - Paul Eggert, 1999-08-23.
  429. * The short name of the --bzip option has been changed to -I,
  430. for compatibility with paxutils.
  431. * -T /dev/null now matches nothing; previously, it matched anything
  432. if no explicit operands were given.
  433. * The `--' option now works the same as with other GNU utilities;
  434. it causes later operands to be interpreted as file names, not options,
  435. even if they begin with `-'.
  436. * For the --newer and --after-date options, the table of time zone
  437. abbreviations like `EST' has been updated to match current practice.
  438. Also, local time abbreviations are now recognized, even if they are
  439. not in tar's hardwired table. Remember, though, that you should use
  440. numeric UTC offsets like `-0500' instead of abbreviations like
  441. `EST', as abbreviations are not standardized and are ambiguous.
  442. version 1.13.10 - Paul Eggert, 1999-08-20.
  443. * `tar' now uses signed base-64 when outputting header values that are
  444. out of the range of the standard unsigned base-8 format. [This
  445. change was superseded in 1.13.12, described above.]
  446. version 1.13.9 - Paul Eggert, 1999-08-18.
  447. * `tar' now writes two zero blocks at end-of-archive instead of just one.
  448. POSIX.1 requires this, and some other `tar' implementations check for it.
  449. * `tar' no longer silently accepts a block containing nonzero checksum bytes
  450. as a zero block.
  451. * `tar' now reads buggy tar files that have a null byte at the start of a
  452. numeric header field.
  453. version 1.13.8 - Paul Eggert, 1999-08-16.
  454. * For compatibility with traditional `tar', intermediate directories
  455. created automatically by root are no longer given the uid and gid of
  456. the original file or directory.
  457. version 1.13.7 - Paul Eggert, 1999-08-14.
  458. * --listed-incremental and --newer are now incompatible options.
  459. * When creating an archive, leading `./' is no longer stripped,
  460. to match traditional tar's behavior (and simplify the documentation).
  461. * --diff without --absolute-names no longer falls back on absolute names.
  462. version 1.13.6 - Paul Eggert, 1999-08-11.
  463. * An --exclude pattern containing / now excludes a file only if it matches an
  464. initial prefix of the file name; a pattern without / continues to
  465. exclude a file if it matches any file name component.
  466. * The protocol for talking to rmt has been extended slightly.
  467. Open flags are now communicated in symbolic format as well as numeric.
  468. The symbolic format (e.g., "O_WRONLY|O_CREAT|O_TRUNC") is for portability
  469. when rmt is operating on a different operating system from tar.
  470. The numeric format is retained, and rmt uses it if symbolic format is absent,
  471. for backward compatibility with older versions of tar and rmt.
  472. * When writing GNU tar format headers, tar now uses signed base-64
  473. for values that cannot be represented in unsigned octal.
  474. This supports larger files (2**66 - 1 bytes instead of 2**33 - 1 bytes),
  475. larger uids, negative time stamps, etc.
  476. * When extracting files with unknown ownership, tar now looks up the
  477. uid and gid "nobody" on hosts whose headers do not define UID_NOBODY
  478. and GID_NOBODY, and falls back on uid/gid -2 if there is no "nobody".
  479. * tar -t --numeric-owner now prints numeric uids and gids, not symbolic.
  480. * New option -y or --bzip2 for bzip2 compression, by popular request.
  481. version 1.13.5 - Paul Eggert, 1999-07-20.
  482. * Do the delayed updates of file metadata even after a fatal error.
  483. version 1.13.4 - Paul Eggert, 1999-07-20.
  484. * Do not chmod unless we are root or the -p option was given;
  485. this matches historical practice.
  486. version 1.13.3 - Paul Eggert, 1999-07-16.
  487. * A path name is excluded if any of its file name components matches an
  488. excluded pattern, even if the path name was specified on the command line.
  489. Also see 1.13.6 for later changes in this area.
  490. version 1.13.2 - Paul Eggert, 1999-07-14.
  491. * Bug reporting address changed to <bug-tar@gnu.org>.
  492. version 1.13.1 - Paul Eggert, 1999-07-12.
  493. * Bug fixes only.
  494. version 1.13 - Paul Eggert, 1999-07-08.
  495. * Support for large files, e.g., files larger than 2 GB on many 32-bit hosts.
  496. Also, support for larger uids, device ids, etc.
  497. * Many bug fixes and porting fixes.
  498. * This release is only for fixes. A more ambitious test release,
  499. with new features, is available as part of the paxutils. Please see:
  500. ftp://alpha.gnu.org/gnu/paxutils/
  501. The fixes in this release are intended to be merged with paxutils
  502. at some point, but they haven't been merged yet.
  503. * An interim GNU tar alpha had new --bzip2 and --ending-file options,
  504. but they have been removed to maintain compatibility with paxutils.
  505. Please try --use=bzip2 instead of --bzip2.
  506. Version 1.12 - François Pinard, 1997-04.
  507. Sensitive matters
  508. * Use shell globbing patterns for --label, instead of regular expressions.
  509. * Do not quote anymore internally over the quoting done by the shell.
  510. Output for humans
  511. * Offer internationalization capabilities of most recent GNU gettext.
  512. * Messages available in many more languages, thanks to all translators!
  513. * Usage of ISO 8601 dates in listings, instead of local American dates.
  514. * More normalization and cleanup in error messages.
  515. Creation
  516. * For helping using tar with find, offer a --no-recursion option.
  517. * Implement --numeric-owner for ignoring symbolic names at create time.
  518. * New --owner, --group --mode options, still preliminary.
  519. * Recognize creating an archive on /dev/null, so Amanda works faster.
  520. * Object to the creation of an empty archive (like in `tar cf FILE').
  521. * Barely start implementing --posix and POSIXLY_CORRECT.
  522. Extraction
  523. * Make a better job at restoring file and directory attributes.
  524. * Automatically attempt deleting existing files when in the way.
  525. * Option --unlink-first (-U) removes most files prior to extraction.
  526. * Option --recursive-unlink removes non-empty directories when in the way.
  527. * Option --numeric-owner ignores owner/group names, it uses UID/GID instead.
  528. * Use global umask when creating missing intermediate directories.
  529. * When symlinks are not available, extract symbolic links as hard links.
  530. * Diagnose extraction of contiguous files as regular files.
  531. * New --backup, --suffix and --version-control options.
  532. Various changes
  533. * Better support of huge archives with --tape-length and --totals.
  534. * Rename option --read-full-blocks (-B) to --read-full-records (-B).
  535. * Rename option --block-size (-b) to --blocking-factor (-b).
  536. * Rename option --record-number (-R) to --block-number (-R).
  537. * With --block-number (-R), report null blocks and end of file.
  538. * Implement --record-size for introducing a size in bytes.
  539. * Delete --block-compress option and rather decide it automatically.
  540. * Rename option --modification-time to --touch.
  541. Many bugs are squashed, while others still run free.
  542. Version 1.11.8 - François Pinard, 1995-06.
  543. * Messages available in French, German, Portuguese and Swedish.
  544. * The distribution provides a rudimentary Texinfo manual.
  545. * The device defaults to stdin/stdout, unless overridden by the installer.
  546. * Option --sparse (-S) should work on more systems.
  547. * Option --rsh-command may select an alternative remote shell program.
  548. Most changes are internal, and should yield better portability.
  549. Version 1.11.2 - Michael Bushnell, 1993-03.
  550. * Changes in backup scripts: cleaned up considerably; notices error
  551. conditions better over rsh; DUMP_REMIND_SCRIPT is now an option in
  552. backup-specs; new file dump-remind is an example of a
  553. DUMP_REMIND_SCRIPT.
  554. * Superfluous "Reading dirname" was a bug; fixed.
  555. * Incompatibility problems with a bug on Solaris are fixed.
  556. * New option --gzip (aliases are --ungzip and -z); calls gzip instead
  557. of compress. Also, --use-compress-program lets you specify any
  558. compress program. --compress-block is renamed --block-compress and
  559. now requires one of the three compression options to be specified.
  560. * Several error messages are cleaned up.
  561. * Directory owners are now set properly when running as root.
  562. * Provide DUMP_REMIND_SCRIPT in backup-specs as a possible option
  563. for --info-script.
  564. * Behave better with broken rmt servers.
  565. * Dump scripts no longer use --atime-preserve; this causes a nasty probem.
  566. * Several Makefile cleanups.
  567. Version 1.11.1 - Michael Bushnell, 1992-09.
  568. * Many bug fixes.
  569. Version 1.11 - Michael Bushnell, 1992-09.
  570. Version 1.10.16 - 1992-07.
  571. Version 1.10.15 - 1992-06.
  572. Version 1.10.14 - 1992-05.
  573. Version 1.10.13 - 1992-01.
  574. * Many bug fixes.
  575. * Now uses GNU standard configure, generated by Autoconf.
  576. * Long options now use `--'; use of `+' is deprecated and support
  577. for it will eventually be removed.
  578. * New option --null causes filenames read by -T to be
  579. null-terminated, and causes -C to be ignored.
  580. * New option --remove-files deletes files (but not directories)
  581. after they are added to the archive.
  582. * New option --ignore-failed-read prevents read-errors from affecting
  583. the exit status.
  584. * New option --checkpoint prints occasional messages as the tape
  585. is being read or written.
  586. * New option --show-omitted-dirs prints the names of directories
  587. omitted from the archive.
  588. * Some tape drives which use a non-standard method of indicating
  589. end-of-tape now work correctly with multi-tape archives.
  590. * --volno-file: Read the volume number used in prompting the user
  591. (but not in recording volume ID's on the archive) from a file.
  592. * When using --multi-volume, you can now give multiple -f arguments;
  593. the various tape drives will get used in sequence and then wrap
  594. around to the beginning.
  595. * Remote archive names no longer have to be in /dev: any file with a
  596. `:' is interpreted as remote. If new option --force-local is given,
  597. then even archive files with a `:' are considered local.
  598. * New option --atime-preserve restores (if possible) atimes to
  599. their original values after dumping the file.
  600. * No longer does tar confusingly dump "." when you don't tell it
  601. what to dump.
  602. * When extracting directories, tar now correctly restores their
  603. modification and access times.
  604. * Longnames support is redone differently--long name info directly
  605. precedes the long-named file or link in the archive, so you no
  606. longer have to wait for the extract to hit the end of the tape for
  607. long names to work.
  608. Version 1.10 - Michael Bushnell, 1991-07.
  609. * Filename to -G is optional. -C works right. Names +newer and
  610. +newer-mtime work right.
  611. * -g is now +incremental, -G is now +listed-incremental.
  612. * Sparse files now work correctly.
  613. * +volume is now called +label.
  614. * +exclude now takes a filename argument, and +exclude-from does
  615. what +exclude used to do.
  616. * Exit status is now correct.
  617. * +totals keeps track of total I/O and prints it when tar exits.
  618. * When using +label with +extract, the label is now a regexp.
  619. * New option +tape-length (-L) does multi-volume handling like BSD
  620. dump: you tell tar how big the tape is and it will prompt at that
  621. point instead of waiting for a write error.
  622. * New backup scripts level-0 and level-1 which might be useful
  623. to people. They use a file "backup-specs" for information, and
  624. shouldn't need local modification. These are what we use to do
  625. all our backups at the FSF.
  626. Version 1.09 - Jay Fenlason, 1990-10.
  627. Version 1.08 - Jay Fenlason, 1990-01.
  628. Versions 1.07 back to 1.00 by Jay Fenlason.
  629. * See ChangeLog for more details.
  630. Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003,
  631. 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
  632. This file is part of GNU tar.
  633. GNU tar is free software; you can redistribute it and/or modify
  634. it under the terms of the GNU General Public License as published by
  635. the Free Software Foundation; either version 3, or (at your option)
  636. any later version.
  637. GNU tar is distributed in the hope that it will be useful,
  638. but WITHOUT ANY WARRANTY; without even the implied warranty of
  639. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  640. GNU General Public License for more details.
  641. You should have received a copy of the GNU General Public License
  642. along with tar; see the file COPYING. If not, write to
  643. the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  644. Boston, MA 02110-1301, USA.
  645. Local variables:
  646. mode: outline
  647. paragraph-separate: "[ ]*$"
  648. eval: (add-hook 'write-file-hooks 'time-stamp)
  649. time-stamp-start: "changes. "
  650. time-stamp-format: "%:y-%02m-%02d"
  651. time-stamp-end: "\n"
  652. end: