Re: Extracting indiviual files or directories from XYZ.tar.xz - Possible?

[Nicolas George <george@nsup.org>]

Vincent Lefevre (HE12025-08-10):
> Yes, an example:
> 
> qaa% ls -l PROGRAMME-FFC-2024.pdf
> -rw-r--r-- 1 vinc17 vinc17 40991563 2024-11-11 02:18:14 PROGRAMME-FFC-2024.pdf
> qaa% xz -k PROGRAMME-FFC-2024.pdf
> qaa% xz -lv PROGRAMME-FFC-2024.pdf.xz
> PROGRAMME-FFC-2024.pdf.xz (1/1)
>   Streams:           1
>   Blocks:            2
>   Compressed size:   38.7 MiB (40530824 B)
>   Uncompressed size: 39.1 MiB (40991563 B)
>   Ratio:             0.989
>   Check:             CRC64
>   Stream Padding:    0 B
>   Streams:
>     Stream    Blocks      CompOffset    UncompOffset        CompSize      UncompSize  Ratio  Check      Padding
>          1         2               0               0        40530824        40991563  0.989  CRC64            0
>   Blocks:
>     Stream     Block      CompOffset    UncompOffset       TotalSize      UncompSize  Ratio  Check
>          1         1              12               0        24961828        25165824  0.992  CRC64
>          1         2        24961840        25165824        15568948        15825739  0.984  CRC64

I stand corrected, but I will argue that this is a non-idiomatic use of
xz, especially for tar archives: they are almost always compressed on
the fly, not stored into a file and then compressed.

Regards,

-- 
  Nicolas George