GNU tar somewhat cleverer than I thought

GNU tar somewhat cleverer than I thought

[Dave Korn]

http://www.gnu.org/software/tar/manual/tar.html#SEC112

" Note that the file 'cherry' is recorded in the archive under the precise
name 'cherry', not 'food/cherry'. Thus, the archive will contain three files
that all appear to have come from the same directory; if the archive is
extracted with plain 'tar --extract', all three files will be written in the
current directory.

Contrast this with the command,
 	

$ tar -c -f jams.tar grape prune -C food red/cherry

which records the third file in the archive under the name 'red/cherry' so
that, if the archive is extracted using 'tar --extract', the third file will
be written in a subdirectory named 'orange-colored'. "


  :) That's some fairly powerful AI they must have there.

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....

Re: GNU tar somewhat cleverer than I thought

[Igor Peshansky]

On Sun, 7 Sep 2008, Dave Korn wrote:

> http://www.gnu.org/software/tar/manual/tar.html#SEC112
>
> " Note that the file 'cherry' is recorded in the archive under the
> precise name 'cherry', not 'food/cherry'. Thus, the archive will contain
> three files that all appear to have come from the same directory; if the
> archive is extracted with plain 'tar --extract', all three files will be
> written in the current directory.
>
> Contrast this with the command,
>
> $ tar -c -f jams.tar grape prune -C food red/cherry
>
> which records the third file in the archive under the name 'red/cherry'
> so that, if the archive is extracted using 'tar --extract', the third
> file will be written in a subdirectory named 'orange-colored'. "
>
>   :) That's some fairly powerful AI they must have there.

Well, it *is* GNU software...

Reminds me of a story where a Ph.D. student put the following footnote on
page 50 of his thesis: "I owe you a beer".  Then, on page 150 of his
thesis, he put another footnote: "I owe you a case of beer".  His advisor
comes to the defense and opens up with: "I read your thesis, and you owe
me a beer".

In other words, they are just checking if you're paying attention.
Apparently, you are.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_	    pechtcha@cs.nyu.edu | igor@watson.ibm.com
ZZZzz /,`.-'`'    -.  ;-;;,_		Igor Peshansky, Ph.D. (name changed!)
     |,4-  ) )-,_. ,\ (  `'-'		old name: Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"That which is hateful to you, do not do to your neighbor.  That is the whole
Torah; the rest is commentary.  Go and study it." -- Rabbi Hillel

RE: GNU tar somewhat cleverer than I thought

[Dave Korn]

Igor Peshansky wrote on 07 September 2008 21:32:

> On Sun, 7 Sep 2008, Dave Korn wrote:
> 
>> http://www.gnu.org/software/tar/manual/tar.html#SEC112

>> Contrast this with the command,
>> 
>> $ tar -c -f jams.tar grape prune -C food red/cherry
>> 
>> which records the third file in the archive under the name 'red/cherry'
>> so that, if the archive is extracted using 'tar --extract', the third
>> file will be written in a subdirectory named 'orange-colored'. "
>> 
>>   :) That's some fairly powerful AI they must have there.
> 
> Well, it *is* GNU software...

  I tested it and it didn't work though, so I should probably file a bug
report.

> In other words, they are just checking if you're paying attention.

  That's one possibility, but I couldn't help wondering if it was maybe some
kind of a clbuttic mistake.

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....