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Full Discussion: redirecting tar extract to another directory
Top Forums UNIX for Dummies Questions & Answers redirecting tar extract to another directory Post 33947 by Henrik on Monday 27th of January 2003 12:08:45 PM
Old 01-27-2003
Maybe I wasn't being clear but what I am trying to do is untar from one file system to another

E.G.

machine 1 has two file systems. file system A has 2 gigs of space. file system B also has 2 gigs of space.

on machine 2 The directory I want to tar is called pedro and I will use the following command to tar it after changing into the local directory

tar -xvf pedro.tar pedro.

The size of pedro.tar is 1.6 gigs

I ftp pedro.tar to file system A on machine 1. The file is too big to untar it as the combination of the pedro.tar and the untarred directories will be greater than 2 gigs.

The solution I was trying to employ is to let pedro.tar exist on file system A but use a tar command which will put the resultant untarred directories into file system B

If I do

tar -xvf pedro.tar .
it will untar the file to the current directory

using that logic I was trying to untar it to file system b using relative paths

i.e. tar -xvf pedro.tar ./../file system B

but the command doesn't work despite not producing an error.

If anyone knows a way to do this please let me know as I have a number of files in varios file systems where the file systems are too small to contain both the tarred and untarred version of the file.
 

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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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