rozdil v zobrazeni obsahu RPM v MC (RH 6.1 a 6.2)

[Milan Kerslager]

On Thu, 8 Feb 2001, Ji?í Mlíka wrote:

> P.S. Co znamená cpio?

$ man cpio
CPIO(1L)                                                 CPIO(1L)

NAME
       cpio - copy files to and from archives

[...]

DESCRIPTION
       This manual page documents the GNU version of cpio.   cpio
       copies  files  into or out of a cpio or tar archive, which
       is a file that contains other files plus information about
       them,  such  as  their  file  name, owner, timestamps, and
       access permissions.  The archive can be  another  file  on
       the  disk,  a  magnetic  tape,  or a pipe.  cpio has three
       operating modes.

[...]

Cili je to nastroj pro manipulaci s archivy. Umi format cpio (prekvapive)
a take tar. Podivam-li se na velikosti, tak zjistim:

$ ls -l /bin/cpio /bin/tar
-rwxr-xr-x    1 root     root        45712 úno  9  2000 /bin/cpio
-rwxr-xr-x    1 root     root       144592 úno  9  2000 /bin/tar
$

Take proto je cpio velmi oblibene (zejmena na bootovacich disketach,
ruznych minimalnich verzich Linuxu a podobne). Rekl bych, ze na ruznych
starsich Unixech najdete s vetsi pravdepodobnosti cpio nez tar. To by mohl
byt dalsi duvod. V MC muze byt duvodem to, ze kdyz uz umi MC zobrazit cpio
a tarove archivy cpio umi, tak je lepsi pouzit to cpio. Vysledne archivy
jsou navic v cpio formatu mensi. Zkuste:

tar cvf test.tar adresar
find adresar | cpio -oBv > test.cpio

-- 
                        Milan Kerslager
                        E-mail: milan.kerslager na spsselib.hiedu.cz
                        WWW:    http://www.spsselib.hiedu.cz/~kerslage/