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Full Discussion: USTAR tar archive
Operating Systems Solaris USTAR tar archive Post 302492543 by snchaudhari2 on Monday 31st of January 2011 08:42:04 PM
Old 01-31-2011
what I did is as below:
Code:
tar cvf /var/adm/messages

Then

when i checked
Code:
file /var/adm/messages

it says it's a ustar archive file

then I tried
Code:
tar -xvf /var/adm/messages

it says
Code:
/var/adm//pool, 0 bytes, 0 tape blocks
/var/adm//wtmpx, 197532 bytes, 386 tape blocks
/var/adm//sulog, 35 bytes, 1 tape blocks
.......
......
...etc

but it's not showing that messages files....


What I should do now.....I need the past logs....I don't have message.0, messages.1 ...on my system...

Last edited by Scott; 01-31-2011 at 11:17 PM.. Reason: Code tags
 

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ARCHIVE_WRITE_FORMAT(3) 				   BSD Library Functions Manual 				   ARCHIVE_WRITE_FORMAT(3)

NAME
archive_write_set_format_cpio, archive_write_set_format_pax, archive_write_set_format_pax_restricted, archive_write_set_format_shar, archive_write_set_format_shar_dump, archive_write_set_format_ustar -- functions for creating archives LIBRARY
Streaming Archive Library (libarchive, -larchive) SYNOPSIS
#include <archive.h> int archive_write_set_format_cpio(struct archive *); int archive_write_set_format_pax(struct archive *); int archive_write_set_format_pax_restricted(struct archive *); int archive_write_set_format_shar(struct archive *); int archive_write_set_format_shar_dump(struct archive *); int archive_write_set_format_ustar(struct archive *); DESCRIPTION
These functions set the format that will be used for the archive. The library can write POSIX octet-oriented cpio format archives, POSIX-standard ``pax interchange'' format archives, traditional ``shar'' ar- chives, enhanced ``dump'' shar archives that store a variety of file attributes and handle binary files, and POSIX-standard ``ustar'' ar- chives. The pax interchange format is a backwards-compatible tar format that adds key/value attributes to each entry and supports arbitrary filenames, linknames, uids, sizes, etc. ``Restricted pax interchange format'' is the library default; this is the same as pax format, but suppresses the pax extended header for most normal files. In most cases, this will result in ordinary ustar archives. RETURN VALUES
These functions return ARCHIVE_OK on success, or ARCHIVE_FATAL. ERRORS
Detailed error codes and textual descriptions are available from the archive_errno() and archive_error_string() functions. SEE ALSO
tar(1), libarchive(3), archive_write(3), archive_write_set_options(3), cpio(5), mtree(5), tar(5) BSD
February 2, 2012 BSD
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