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Full Discussion: Files count mismatch when used with Tar with find
Top Forums UNIX for Dummies Questions & Answers Files count mismatch when used with Tar with find Post 302577898 by methyl on Wednesday 30th of November 2011 08:03:52 AM
Old 11-30-2011
Please post the Operating System and version and Shell.

There is much variation in the behaviour of "tar". There is also variation in the behaviour of xargs. In this case I believe that xargs is generating a command line of the maximum allowed length of a command line and executing "tar" every time this happens (which with 13,519 lines could be several times). Thus you only get the last batch of files.

Might need a two-stage process where you copy the files to an archive directory and then create a compressed tar archive of the whole directory.

Beware that many versions of "tar" will not deal with files larger than 2 Gigabytes.
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LEARN ABOUT MOJAVE

ptargrep5.18

PTARGREP(1)						 Perl Programmers Reference Guide					       PTARGREP(1)

NAME

       ptargrep - Apply pattern matching to the contents of files in a tar archive

SYNOPSIS

	 ptargrep [options] <pattern> <tar file> ...

	 Options:

	  --basename|-b     ignore directory paths from archive
	  --ignore-case|-i  do case-insensitive pattern matching
	  --list-only|-l    list matching filenames rather than extracting matches
	  --verbose|-v	    write debugging message to STDERR
	  --help|-?	    detailed help message

DESCRIPTION

       This utility allows you to apply pattern matching to the contents of files contained in a tar archive.  You might use this to identify all
       files in an archive which contain lines matching the specified pattern and either print out the pathnames or extract the files.

       The pattern will be used as a Perl regular expression (as opposed to a simple grep regex).

       Multiple tar archive filenames can be specified - they will each be processed in turn.

OPTIONS

       --basename (alias -b)
	   When matching files are extracted, ignore the directory path from the archive and write to the current directory using the basename of
	   the file from the archive.  Beware: if two matching files in the archive have the same basename, the second file extracted will
	   overwrite the first.

       --ignore-case (alias -i)
	   Make pattern matching case-insensitive.

       --list-only (alias -l)
	   Print the pathname of each matching file from the archive to STDOUT.  Without this option, the default behaviour is to extract each
	   matching file.

       --verbose (alias -v)
	   Log debugging info to STDERR.

       --help (alias -?)
	   Display this documentation.

COPYRIGHT

       Copyright 2010 Grant McLean <grantm@cpan.org>

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.18.2							    2018-08-17							       PTARGREP(1)
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